#include <visp3/core/vpImageConvert.h>

Static Public Member Functions
static void	createDepthHistogram (const vpImage< uint16_t > &src_depth, vpImage< vpRGBa > &dest_rgba)

static void	createDepthHistogram (const vpImage< uint16_t > &src_depth, vpImage< unsigned char > &dest_depth)

static void	createDepthHistogram (const vpImage< float > &src_depth, vpImage< vpRGBa > &dest_depth)

static void	createDepthHistogram (const vpImage< float > &src_depth, vpImage< unsigned char > &dest_depth)

static void	convert (const vpImage< unsigned char > &src, vpImage< vpRGBa > &dest)

static void	convert (const vpImage< vpRGBa > &src, vpImage< unsigned char > &dest, unsigned int nThreads=0)

static void	convert (const vpImage< float > &src, vpImage< unsigned char > &dest)

static void	convert (const vpImage< unsigned char > &src, vpImage< float > &dest)

static void	convert (const vpImage< double > &src, vpImage< unsigned char > &dest)

static void	convert (const vpImage< unsigned char > &src, vpImage< double > &dest)

static void	convert (const vpImage< uint16_t > &src, vpImage< unsigned char > &dest, unsigned char bitshift=8)

static void	convert (const vpImage< unsigned char > &src, vpImage< uint16_t > &dest, unsigned char bitshift=8)

template<typename Type >
static void	convert (const vpImage< Type > &src, vpImage< Type > &dest)

static void	convert (const IplImage *src, vpImage< vpRGBa > &dest, bool flip=false)

static void	convert (const IplImage *src, vpImage< unsigned char > &dest, bool flip=false)

static void	convert (const vpImage< vpRGBa > &src, IplImage *&dest)

static void	convert (const vpImage< unsigned char > &src, IplImage *&dest)

static void	convert (const cv::Mat &src, vpImage< vpRGBa > &dest, bool flip=false)

static void	convert (const cv::Mat &src, vpImage< unsigned char > &dest, bool flip=false, unsigned int nThreads=0)

static void	convert (const vpImage< vpRGBa > &src, cv::Mat &dest)

static void	convert (const vpImage< unsigned char > &src, cv::Mat &dest, bool copyData=true)

static void	convert (const vpImage< unsigned char > &src, yarp::sig::ImageOf< yarp::sig::PixelMono > *dest, bool copyData=true)

static void	convert (const yarp::sig::ImageOf< yarp::sig::PixelMono > *src, vpImage< unsigned char > &dest, bool copyData=true)

static void	convert (const vpImage< vpRGBa > &src, yarp::sig::ImageOf< yarp::sig::PixelRgba > *dest, bool copyData=true)

static void	convert (const yarp::sig::ImageOf< yarp::sig::PixelRgba > *src, vpImage< vpRGBa > &dest, bool copyData=true)

static void	convert (const vpImage< vpRGBa > &src, yarp::sig::ImageOf< yarp::sig::PixelRgb > *dest)

static void	convert (const yarp::sig::ImageOf< yarp::sig::PixelRgb > *src, vpImage< vpRGBa > &dest)

static void	split (const vpImage< vpRGBa > &src, vpImage< unsigned char > pR, vpImage< unsigned char > pG, vpImage< unsigned char > pB, vpImage< unsigned char > pa=NULL)

static void	merge (const vpImage< unsigned char > R, const vpImage< unsigned char > G, const vpImage< unsigned char > B, const vpImage< unsigned char > a, vpImage< vpRGBa > &RGBa)

static void	YUVToRGB (unsigned char y, unsigned char u, unsigned char v, unsigned char &r, unsigned char &g, unsigned char &b)

static void	YUYVToRGBa (unsigned char yuyv, unsigned char rgba, unsigned int width, unsigned int height)

static void	YUYVToRGB (unsigned char yuyv, unsigned char rgb, unsigned int width, unsigned int height)

static void	YUYVToGrey (unsigned char yuyv, unsigned char grey, unsigned int size)

static void	YUV411ToRGBa (unsigned char yuv, unsigned char rgba, unsigned int size)

static void	YUV411ToRGB (unsigned char yuv, unsigned char rgb, unsigned int size)

static void	YUV411ToGrey (unsigned char yuv, unsigned char grey, unsigned int size)

static void	YUV422ToRGBa (unsigned char yuv, unsigned char rgba, unsigned int size)

static void	YUV422ToRGB (unsigned char yuv, unsigned char rgb, unsigned int size)

static void	YUV422ToGrey (unsigned char yuv, unsigned char grey, unsigned int size)

static void	YUV420ToRGBa (unsigned char yuv, unsigned char rgba, unsigned int width, unsigned int height)

static void	YUV420ToRGB (unsigned char yuv, unsigned char rgb, unsigned int width, unsigned int height)

static void	YUV420ToGrey (unsigned char yuv, unsigned char grey, unsigned int size)

static void	YUV444ToRGBa (unsigned char yuv, unsigned char rgba, unsigned int size)

static void	YUV444ToRGB (unsigned char yuv, unsigned char rgb, unsigned int size)

static void	YUV444ToGrey (unsigned char yuv, unsigned char grey, unsigned int size)

static void	YV12ToRGBa (unsigned char yuv, unsigned char rgba, unsigned int width, unsigned int height)

static void	YV12ToRGB (unsigned char yuv, unsigned char rgb, unsigned int width, unsigned int height)

static void	YVU9ToRGBa (unsigned char yuv, unsigned char rgba, unsigned int width, unsigned int height)

static void	YVU9ToRGB (unsigned char yuv, unsigned char rgb, unsigned int width, unsigned int height)

static void	RGBToRGBa (unsigned char rgb, unsigned char rgba, unsigned int size)

static void	RGBaToRGB (unsigned char rgba, unsigned char rgb, unsigned int size)

static void	RGBToGrey (unsigned char rgb, unsigned char grey, unsigned int width, unsigned int height, bool flip=false)

static void	RGBToGrey (unsigned char rgb, unsigned char grey, unsigned int size)

static void	RGBaToGrey (unsigned char rgba, unsigned char grey, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	RGBaToGrey (unsigned char rgba, unsigned char grey, unsigned int size)

static void	RGBToRGBa (unsigned char rgb, unsigned char rgba, unsigned int width, unsigned int height, bool flip=false)

static void	GreyToRGBa (unsigned char grey, unsigned char rgba, unsigned int width, unsigned int height)

static void	GreyToRGBa (unsigned char grey, unsigned char rgba, unsigned int size)

static void	GreyToRGB (unsigned char grey, unsigned char rgb, unsigned int size)

static void	BGRToRGBa (unsigned char bgr, unsigned char rgba, unsigned int width, unsigned int height, bool flip=false)

static void	BGRToGrey (unsigned char bgr, unsigned char grey, unsigned int width, unsigned int height, bool flip=false, unsigned int nThreads=0)

static void	BGRaToGrey (unsigned char bgra, unsigned char grey, unsigned int width, unsigned int height, bool flip=false, unsigned int nThreads=0)

static void	BGRaToRGBa (unsigned char bgra, unsigned char rgba, unsigned int width, unsigned int height, bool flip=false)

static void	YCbCrToRGB (unsigned char ycbcr, unsigned char rgb, unsigned int size)

static void	YCbCrToRGBa (unsigned char ycbcr, unsigned char rgb, unsigned int size)

static void	YCbCrToGrey (unsigned char ycbcr, unsigned char grey, unsigned int size)

static void	YCrCbToRGB (unsigned char ycrcb, unsigned char rgb, unsigned int size)

static void	YCrCbToRGBa (unsigned char ycrcb, unsigned char rgb, unsigned int size)

static void	MONO16ToGrey (unsigned char grey16, unsigned char grey, unsigned int size)

static void	MONO16ToRGBa (unsigned char grey16, unsigned char rgba, unsigned int size)

static void	HSVToRGBa (const double hue, const double saturation, const double value, unsigned char rgba, unsigned int size)

static void	HSVToRGBa (const unsigned char hue, const unsigned char saturation, const unsigned char value, unsigned char rgba, unsigned int size)

static void	RGBaToHSV (const unsigned char rgba, double hue, double saturation, double value, unsigned int size)

static void	RGBaToHSV (const unsigned char rgba, unsigned char hue, unsigned char saturation, unsigned char value, unsigned int size)

static void	HSVToRGB (const double hue, const double saturation, const double value, unsigned char rgb, unsigned int size)

static void	HSVToRGB (const unsigned char hue, const unsigned char saturation, const unsigned char value, unsigned char rgb, unsigned int size)

static void	RGBToHSV (const unsigned char rgb, double hue, double saturation, double value, unsigned int size)

static void	RGBToHSV (const unsigned char rgb, unsigned char hue, unsigned char saturation, unsigned char value, unsigned int size)

static void	demosaicBGGRToRGBaBilinear (const uint8_t bggr, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicBGGRToRGBaBilinear (const uint16_t bggr, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGBRGToRGBaBilinear (const uint8_t gbrg, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGBRGToRGBaBilinear (const uint16_t gbrg, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGRBGToRGBaBilinear (const uint8_t grbg, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGRBGToRGBaBilinear (const uint16_t grbg, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicRGGBToRGBaBilinear (const uint8_t rggb, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicRGGBToRGBaBilinear (const uint16_t rggb, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicBGGRToRGBaMalvar (const uint8_t bggr, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicBGGRToRGBaMalvar (const uint16_t bggr, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGBRGToRGBaMalvar (const uint8_t gbrg, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGBRGToRGBaMalvar (const uint16_t gbrg, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGRBGToRGBaMalvar (const uint8_t grbg, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicGRBGToRGBaMalvar (const uint16_t grbg, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicRGGBToRGBaMalvar (const uint8_t rggb, uint8_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

static void	demosaicRGGBToRGBaMalvar (const uint16_t rggb, uint16_t rgba, unsigned int width, unsigned int height, unsigned int nThreads=0)

Detailed Description

Convert image types.

The following example available in tutorial-image-converter.cpp shows how to convert an OpenCV cv::Mat image into a vpImage:

 
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION >= 0x020100)
  try {
    cv::Mat A;
#if VISP_HAVE_OPENCV_VERSION >= 0x030200
    int flags = cv::IMREAD_GRAYSCALE | cv::IMREAD_IGNORE_ORIENTATION;
#elif VISP_HAVE_OPENCV_VERSION >= 0x030000
    int flags = cv::IMREAD_GRAYSCALE;
#elif VISP_HAVE_OPENCV_VERSION >= 0x020100
    int flags = CV_LOAD_IMAGE_GRAYSCALE;
#endif
 
    A = cv::imread("monkey.bmp", flags);
 
    vpImage<unsigned char> I;
    vpImageConvert::convert(A, I);
 
#ifdef VISP_HAVE_PNG
    vpImageIo::write(I, "monkey.png"); // Gray
#endif
  } catch (const vpException &e) {
    std::cout << "Catch an exception: " << e << std::endl;
  }
#endif
}

Definition at line 105 of file vpImageConvert.h.

Member Function Documentation

◆ BGRaToGrey()

void vpImageConvert::BGRaToGrey	(	unsigned char *	bgra,
		unsigned char *	grey,
		unsigned int	width,
		unsigned int	height,
		bool	flip = `false`,
		unsigned int	nThreads = `0`
	)

static

Converts a BGRa image to greyscale. Flips the image verticaly if needed. Assumes that grey is already resized.

Note: If flip is false, the SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	bgra	: Pointer to the bitmap containing the 32-bits BGRa data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	width,height	: Image size.
[in]	flip	: When true, image is flipped vertically.
[in]	nThreads	: When > 0, the value is used to set the number of OpenMP threads used for the conversion.

Examples: testColorConversion.cpp.

Definition at line 3776 of file vpImageConvert.cpp.

Referenced by convert().

◆ BGRaToRGBa()

void vpImageConvert::BGRaToRGBa	(	unsigned char *	bgra,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height,
		bool	flip = `false`
	)

static

Converts a BGRa image to RGBa.

Flips the image verticaly if needed. Assumes that rgba is already resized before caling this function.

Note: If flip is false, the SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	bgra	: Pointer to the bitmap containing the 32-bits BGRa data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.
[in]	flip	: When true, image is flipped vertically.

Examples: testColorConversion.cpp.

Definition at line 3680 of file vpImageConvert.cpp.

◆ BGRToGrey()

void vpImageConvert::BGRToGrey	(	unsigned char *	bgr,
		unsigned char *	grey,
		unsigned int	width,
		unsigned int	height,
		bool	flip = `false`,
		unsigned int	nThreads = `0`
	)

static

Converts a BGR image to greyscale. Flips the image verticaly if needed. Assumes that grey is already resized.

Note: If flip is false, the SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	bgr	: Pointer to the bitmap containing the 24-bits BGR data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	width,height	: Image size.
[in]	flip	: When true, image is flipped vertically.
[in]	nThreads	: When > 0, the value is used to set the number of OpenMP threads used for the conversion.

Examples: testColorConversion.cpp.

Definition at line 3723 of file vpImageConvert.cpp.

Referenced by vpV4l2Grabber::acquire(), convert(), vpRobotBebop2::getGrayscaleImage(), and vpRealSense2::getGreyFrame().

◆ BGRToRGBa()

void vpImageConvert::BGRToRGBa	(	unsigned char *	bgr,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height,
		bool	flip = `false`
	)

static

Converts a BGR image to RGBa. The alpha component is set to vpRGBa::alpha_default.

Flips the image verticaly if needed. Assumes that rgba is already resized.

Note: If flip is false, the SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	bgr	: Pointer to the bitmap containing the 24-bits BGR data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.
[in]	flip	: When true, image is flipped vertically.

Definition at line 3637 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

Referenced by vpV4l2Grabber::acquire(), vpRealSense2::getColorFrame(), and vpRobotBebop2::getRGBaImage().

◆ convert() [1/23]

void vpImageConvert::convert	(	const cv::Mat &	src,
		vpImage< unsigned char > &	dest,
		bool	flip = `false`,
		unsigned int	nThreads = `0`
	)

static

Convert a cv::Mat to a vpImage<unsigned char>.

A cv::Mat is an OpenCV image class. See http://opencv.willowgarage.com for the general OpenCV documentation, or http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html for the specific Mat structure documentation.

Similarily to the convert(const IplImage* src, vpImage<vpRGBa> & dest, bool flip) method, only Mat with a depth equal to 8 and a channel between 1 and 3 are converted.

Warning: This function is only available if OpenCV was detected during the configuration step.

Parameters

[in]	src	: Source image in OpenCV format.
[out]	dest	: Destination image in ViSP format.
[in]	flip	: Set to true to vertically flip the converted image.
[in]	nThreads	: number of threads to use if OpenMP is available. If 0 is passed, OpenMP will choose the number of threads.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION >= 0x020100)
  vpImage<unsigned char> Ig; // A grayscale image
  cv::Mat Ip;
 
  // Read an image on a disk with openCV library
  Ip = cv::imread("image.pgm", cv::IMREAD_GRAYSCALE); // Second parameter for a gray level.
  // Convert the grayscale cv::Mat into vpImage<unsigned char>
  vpImageConvert::convert(Ip, Ig);
 
  // ...
#endif
}

Definition at line 741 of file vpImageConvert.cpp.

References BGRaToGrey(), BGRToGrey(), vpImage< Type >::bitmap, vpImage< Type >::getCols(), vpImage< Type >::getRows(), and vpImage< Type >::resize().

◆ convert() [2/23]

void vpImageConvert::convert	(	const cv::Mat &	src,
		vpImage< vpRGBa > &	dest,
		bool	flip = `false`
	)

static

Convert a cv::Mat to a vpImage<vpRGBa>.

A cv::Mat is an OpenCV image class. See http://opencv.willowgarage.com for the general OpenCV documentation, or http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html for the specific Mat structure documentation.

Similarily to the convert(const IplImage* src, vpImage<vpRGBa> & dest, bool flip) method, only cv::Mat with a depth equal to 8 and a channel between 1 and 3 are converted.

If the input image is of type CV_8UC1 or CV_8UC3, the alpha channel is set to vpRGBa::alpha_default, or 0 in certain case (see the warning below).

Warning: This function is only available if OpenCV (version 2.1.0 or greater) was detected during the configuration step.; If ViSP is built with SSSE3 flag and the CPU supports this intrinsics set, alpha channel will be set to 0, otherwise it will be set to vpRGBa::alpha_default (255).

Parameters

[in]	src	: Source image in OpenCV format.
[out]	dest	: Destination image in ViSP format.
[in]	flip	: Set to true to vertically flip the converted image.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/core/vpRGBa.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION >= 0x020100)
  vpImage<vpRGBa> Ic; // A color image
  cv::Mat Ip;
 
  // Read an image on a disk with openCV library
  Ip = cv::imread("image.pgm", cv::IMREAD_COLOR); // Second parameter for a BGR encoding.
  // Convert the grayscale cv::Mat into vpImage<vpRGBa>
  vpImageConvert::convert(Ip, Ic);
 
  // ...
#endif
}

Definition at line 640 of file vpImageConvert.cpp.

References vpRGBa::A, vpRGBa::alpha_default, vpRGBa::B, vpImage< Type >::bitmap, vpRGBa::G, vpImage< Type >::getCols(), vpImage< Type >::getRows(), vpImage< Type >::getWidth(), vpRGBa::R, and vpImage< Type >::resize().

◆ convert() [3/23]

void vpImageConvert::convert	(	const IplImage *	src,
		vpImage< unsigned char > &	dest,
		bool	flip = `false`
	)

static

Deprecated:: Rather then using OpenCV IplImage you should use cv::Mat images. IplImage structure will be removed with OpenCV transcient from C to C++ api.

Convert an IplImage to a vpImage<unsigned char>.

An IplImage is an OpenCV (Intel's Open source Computer Vision Library) image structure. See http://opencvlibrary.sourceforge.net/ for general OpenCV documentation, or http://opencvlibrary.sourceforge.net/CxCore for the specific IplImage structure documentation.

Warning: This function is only available if OpenCV was detected during the configuration step.

Parameters

[in]	src	: Source image in OpenCV format.
[out]	dest	: Destination image in ViSP format.
[in]	flip	: Set to true to vertically flip the converted image.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION < 0x020408)
  vpImage<unsigned char> Ig; // A grayscale image
  IplImage* Ip;
 
  // Read an image on a disk with openCV library
  Ip = cvLoadImage("image.pgm", CV_LOAD_IMAGE_GRAYSCALE);
  // Convert the grayscale IplImage into vpImage<unsigned char>
  vpImageConvert::convert(Ip, Ig);
 
  // ...
 
  // Release Ip header and data
  cvReleaseImage(&Ip);
#endif
}

Definition at line 386 of file vpImageConvert.cpp.

References BGRToGrey(), vpImage< Type >::bitmap, and vpImage< Type >::resize().

◆ convert() [4/23]

void vpImageConvert::convert	(	const IplImage *	src,
		vpImage< vpRGBa > &	dest,
		bool	flip = `false`
	)

static

Deprecated:: Rather then using OpenCV IplImage you should use cv::Mat images. IplImage structure will be removed with OpenCV transcient from C to C++ api.

Convert an IplImage to a vpImage<vpRGBa>.

An IplImage is an OpenCV (Intel's Open source Computer Vision Library) image structure. See http://opencvlibrary.sourceforge.net/ for general OpenCV documentation, or http://opencvlibrary.sourceforge.net/CxCore for the specific IplImage structure documentation.

If the input image has only 1 or 3 channels, the alpha channel is set to vpRGBa::alpha_default.

Warning: This function is only available if OpenCV was detected during the configuration step.

Parameters

[in]	src	: Source image in OpenCV format.
[out]	dest	: Destination image in ViSP format.
[in]	flip	: Set to true to vertically flip the converted image.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION < 0x020408)
  vpImage<vpRGBa> Ic; // A color image
  IplImage* Ip;
 
  // Read an image on a disk with openCV library
  Ip = cvLoadImage("image.ppm", CV_LOAD_IMAGE_COLOR);
  // Convert the grayscale IplImage into vpImage<vpRGBa>
  vpImageConvert::convert(Ip, Ic);
 
  // ...
 
  // Release Ip header and data
  cvReleaseImage(&Ip);
#endif
}

Definition at line 291 of file vpImageConvert.cpp.

References vpRGBa::alpha_default, vpImage< Type >::bitmap, and vpImage< Type >::resize().

◆ convert() [5/23]

void vpImageConvert::convert	(	const vpImage< double > &	src,
		vpImage< unsigned char > &	dest
	)

static

Convert a vpImage<double> to a vpImage<unsigned char> by renormalizing between 0 and 255.

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.

Definition at line 139 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getMinMaxValue(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

◆ convert() [6/23]

void vpImageConvert::convert	(	const vpImage< float > &	src,
		vpImage< unsigned char > &	dest
	)

static

Convert a vpImage<float> to a vpImage<unsigend char> by renormalizing between 0 and 255.

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.

Definition at line 102 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getMinMaxValue(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

◆ convert() [7/23]

template<typename Type >

static void vpImageConvert::convert	(	const vpImage< Type > &	src,
		vpImage< Type > &	dest
	)

inlinestatic

Make a copy of an image.

Parameters

src	: source image.
dest	: destination image.

Definition at line 132 of file vpImageConvert.h.

◆ convert() [8/23]

void vpImageConvert::convert	(	const vpImage< uint16_t > &	src,
		vpImage< unsigned char > &	dest,
		unsigned char	bitshift = `8`
	)

static

Convert a vpImage<uint16_t> to a vpImage<unsigned char>.

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.
[in]	bitshift	: Right bit shift applied to each source element.

Definition at line 164 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getSize(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

◆ convert() [9/23]

void vpImageConvert::convert	(	const vpImage< unsigned char > &	src,
		cv::Mat &	dest,
		bool	copyData = `true`
	)

static

Convert a vpImage<unsigned char> to a cv::Mat grey level image.

A cv::Mat is an OpenCV image class. See http://opencv.willowgarage.com for the general OpenCV documentation, or http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html for the specific Mat structure documentation.

Warning: This function is only available if OpenCV version 2.1.0 or greater was detected during the configuration step.

Parameters

[in]	src	: Source image.
[out]	dest	: Destination image.
[in]	copyData	: If true, the image is copied and modification in one object will not modified the other.

#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION >= 0x020100)
  vpImage<unsigned char> Ig; // A greyscale image
  cv::Mat Ip;
 
  // Read an image on a disk
  vpImageIo::read(Ig, "image.pgm");
  // Convert the vpImage<unsigned char> in to greyscale cv::Mat
  vpImageConvert::convert(Ig, Ip);
  // Treatments on cv::Mat Ip
  //...
  // Save the cv::Mat on the disk
  cv::imwrite("image-cv.pgm", Ip);
#endif
}

Definition at line 879 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getCols(), and vpImage< Type >::getRows().

◆ convert() [10/23]

void vpImageConvert::convert	(	const vpImage< unsigned char > &	src,
		IplImage *&	dest
	)

static

Deprecated:: Rather then using OpenCV IplImage you should use cv::Mat images. IplImage structure will be removed with OpenCV transcient from C to C++ api.

Convert a vpImage<unsigned char> to a IplImage.

An IplImage is an OpenCV (Intel's Open source Computer Vision Library) image structure. See http://opencvlibrary.sourceforge.net/ for general OpenCV documentation, or http://opencvlibrary.sourceforge.net/CxCore for the specific IplImage structure documentation.

Warning: This function is only available if OpenCV was detected during the configuration step.

Parameters

[in]	src	: Source image.
[out]	dest	: Destination image.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION < 0x020408)
  vpImage<unsigned char> Ig; // A greyscale image
  IplImage* Ip = NULL;
 
  // Read an image on a disk
  vpImageIo::read(Ig, "image.pgm");
  // Convert the vpImage<unsigned char> in to greyscale IplImage
  vpImageConvert::convert(Ig, Ip);
  // Treatments on IplImage Ip
  //...
  // Save the IplImage on the disk
  cvSaveImage("Ipl.pgm", Ip);
 
  //Release Ip header and data
  cvReleaseImage(&Ip);
#endif
}

Definition at line 563 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), and vpImage< Type >::getWidth().

◆ convert() [11/23]

void vpImageConvert::convert	(	const vpImage< unsigned char > &	src,
		vpImage< double > &	dest
	)

static

Convert a vpImage<unsigned char> to a vpImage<double> by basic casting.

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.

Definition at line 191 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

◆ convert() [12/23]

void vpImageConvert::convert	(	const vpImage< unsigned char > &	src,
		vpImage< float > &	dest
	)

static

Convert a vpImage<unsigned char> to a vpImage<float> by basic casting.

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.

Definition at line 126 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

◆ convert() [13/23]

void vpImageConvert::convert	(	const vpImage< unsigned char > &	src,
		vpImage< uint16_t > &	dest,
		unsigned char	bitshift = `8`
	)

static

Convert a vpImage<unsigned char> to a vpImage<uint16_t>.

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.
[in]	bitshift	: Left bit shift applied to each source element.

Definition at line 178 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getSize(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

◆ convert() [14/23]

void vpImageConvert::convert	(	const vpImage< unsigned char > &	src,
		vpImage< vpRGBa > &	dest
	)

static

Convert a vpImage<unsigned char> to a vpImage<vpRGBa>. Tha alpha component is set to vpRGBa::alpha_default.

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.

See also: GreyToRGBa()

Examples: AROgre.cpp, AROgreBasic.cpp, HelloWorldOgre.cpp, HelloWorldOgreAdvanced.cpp, grabOpenCV.cpp, grabRealSense.cpp, grabV4l2MultiCpp11Thread.cpp, servoPioneerPoint2DDepth.cpp, servoPioneerPoint2DDepthWithoutVpServo.cpp, servoViper850FourPointsKinect.cpp, testColorConversion.cpp, testConnectedComponents.cpp, testContours.cpp, testConversion.cpp, testFloodFill.cpp, testGaussianFilter.cpp, testGenericTracker.cpp, testImageFilter.cpp, testImageNormalizedCorrelation.cpp, testKeyPoint-3.cpp, testKeyPoint-4.cpp, testRealSense2_SR300.cpp, testRealSense_R200.cpp, testRealSense_SR300.cpp, testUndistortImage.cpp, trackKltOpencv.cpp, tutorial-apriltag-detector-live-rgbd-realsense.cpp, tutorial-apriltag-detector-live-rgbd-structure-core.cpp, tutorial-apriltag-detector-live.cpp, tutorial-apriltag-detector.cpp, tutorial-barcode-detector-live.cpp, tutorial-blob-tracker-live-firewire.cpp, tutorial-blob-tracker-live-v4l2.cpp, tutorial-bridge-opencv-camera-param.cpp, tutorial-bridge-opencv-image.cpp, tutorial-chessboard-pose.cpp, tutorial-dnn-object-detection-live.cpp, tutorial-face-detector-live-threaded.cpp, tutorial-face-detector-live.cpp, tutorial-grabber-opencv-threaded.cpp, tutorial-grabber-opencv.cpp, tutorial-ibvs-4pts-ogre-tracking.cpp, tutorial-image-converter.cpp, tutorial-image-filter.cpp, tutorial-klt-tracker-live-v4l2.cpp, tutorial-klt-tracker-with-reinit.cpp, tutorial-klt-tracker.cpp, tutorial-mb-generic-tracker-apriltag-rs2.cpp, tutorial-mb-generic-tracker-apriltag-webcam.cpp, tutorial-mb-generic-tracker-live.cpp, tutorial-mb-generic-tracker-rgbd-realsense.cpp, tutorial-mb-generic-tracker-rgbd-structure-core.cpp, tutorial-mb-generic-tracker-rgbd.cpp, tutorial-me-ellipse-tracker.cpp, tutorial-me-line-tracker.cpp, tutorial-pose-from-points-live.cpp, tutorial-video-manipulation.cpp, and tutorial-video-recorder.cpp.

Definition at line 73 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getWidth(), GreyToRGBa(), and vpImage< Type >::resize().

Referenced by vpVideoReader::acquire(), vpKeyPoint::buildReference(), vpImageFilter::canny(), vpMbGenericTracker::computeCurrentProjectionError(), vpDetectorDNN::detect(), vpKeyPoint::detect(), vpKeyPoint::detectExtractAffine(), vpKeyPoint::extract(), vpVideoReader::getFrame(), vpImageFilter::getGaussPyramidal(), vpDisplay::getImage(), vpDisplayOpenCV::getImage(), vpImageSimulator::init(), vpMbGenericTracker::initClick(), vpMbTracker::initFromPoints(), vpMbTracker::initFromPose(), vpMbEdgeTracker::initPyramid(), vpKeyPoint::insertImageMatching(), vpKeyPoint::matchPoint(), vpMbKltTracker::preTracking(), vpMbKltTracker::reinit(), vpVideoWriter::saveFrame(), vpMeNurbs::seekExtremitiesCanny(), vpMbKltTracker::setPose(), vpMbDepthDenseTracker::setPose(), vpMbDepthNormalTracker::setPose(), vpMbEdgeKltTracker::setPose(), vpMbEdgeTracker::setPose(), vpMbGenericTracker::setPose(), vpImageTools::templateMatching(), vpMbEdgeTracker::track(), vpMbEdgeKltTracker::track(), vpMbKltTracker::track(), and vpMbGenericTracker::track().

◆ convert() [15/23]

void vpImageConvert::convert	(	const vpImage< unsigned char > &	src,
		yarp::sig::ImageOf< yarp::sig::PixelMono > *	dest,
		bool	copyData = `true`
	)

static

Convert a vpImage<unsigned char> to a yarp::sig::ImageOf<yarp::sig::PixelMono>

A yarp::sig::Image is a YARP image class. See http://eris.liralab.it/yarpdoc/df/d15/classyarp_1_1sig_1_1Image.html for the YARP image class documentation.

Parameters

[in]	src	: Source image in ViSP format.
[out]	dest	: Destination image in YARP format.
[in]	copyData	: Set to true to copy all the image content. If false we only update the image pointer.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_YARP)
  vpImage<unsigned char> I; // A mocochrome image
  // Read an image on a disk
  vpImageIo::read(I, "image.pgm");
 
  yarp::sig::ImageOf< yarp::sig::PixelMono > *Iyarp = new yarp::sig::ImageOf<yarp::sig::PixelMono >();
  // Convert the vpImage<unsigned char> to a yarp::sig::ImageOf<yarp::sig::PixelMono>
  vpImageConvert::convert(I, Iyarp);
 
  // ...
#endif
}

Definition at line 926 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getCols(), vpImage< Type >::getHeight(), vpImage< Type >::getRows(), and vpImage< Type >::getWidth().

◆ convert() [16/23]

void vpImageConvert::convert	(	const vpImage< vpRGBa > &	src,
		cv::Mat &	dest
	)

static

Convert a vpImage<vpRGBa> to a cv::Mat color image.

A cv::Mat is an OpenCV image class. See http://opencv.willowgarage.com for the general OpenCV documentation, or http://opencv.willowgarage.com/documentation/cpp/core_basic_structures.html for the specific Mat structure documentation.

Warning: This function is only available if OpenCV version 2.1.0 or greater was detected during the configuration step.

Parameters

[in]	src	: Source image (vpRGBa format).
[out]	dest	: Destination image (BGR format).

#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION >= 0x020100)
  vpImage<vpRGBa> I; // A color image
  cv::Mat Icv;
 
  // Read an image on a disk
  vpImageIo::read(I, "image.ppm");
  // Convert the image into color cv::Mat.
  vpImageConvert::convert(I, Icv);
  // Treatments on cv::Mat Icv
  //...
  // Save the cv::Mat on the disk
  cv::imwrite("image-cv.ppm", Icv);
#endif
}

Definition at line 835 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getCols(), and vpImage< Type >::getRows().

◆ convert() [17/23]

void vpImageConvert::convert	(	const vpImage< vpRGBa > &	src,
		IplImage *&	dest
	)

static

Deprecated:: Rather then using OpenCV IplImage you should use cv::Mat images. IplImage structure will be removed with OpenCV transcient from C to C++ api.

Convert a vpImage<vpRGBa> to a IplImage.

An IplImage is an OpenCV (Intel's Open source Computer Vision Library) image structure. See http://opencvlibrary.sourceforge.net/ for general OpenCV documentation, or http://opencvlibrary.sourceforge.net/CxCore for the specific IplImage structure documentation.

Warning: This function is only available if OpenCV was detected during the configuration step.

Parameters

[in]	src	: Source image.
[out]	dest	: Destination image.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_OPENCV) && (VISP_HAVE_OPENCV_VERSION < 0x020408)
  vpImage<vpRGBa> Ic; // A color image
  IplImage* Ip = NULL;
 
  // Read an image on a disk
  vpImageIo::read(Ic, "image.ppm");
  // Convert the vpImage<vpRGBa> in to color IplImage
  vpImageConvert::convert(Ic, Ip);
  // Treatments on IplImage
  //...
  // Save the IplImage on the disk
  cvSaveImage("Ipl.ppm", Ip);
 
  //Release Ip header and data
  cvReleaseImage(&Ip);
#endif
}

Definition at line 481 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), and vpImage< Type >::getWidth().

◆ convert() [18/23]

void vpImageConvert::convert	(	const vpImage< vpRGBa > &	src,
		vpImage< unsigned char > &	dest,
		unsigned int	nThreads = `0`
	)

static

Convert a vpImage<unsigned char> to a vpImage<vpRGBa>

Parameters

[in]	src	: Source image
[out]	dest	: Destination image.
[in]	nThreads	: Number of threads to use if OpenMP is available. If 0 is passed, OpenMP will choose the number of threads.

See also: RGBaToGrey()

Definition at line 89 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getWidth(), vpImage< Type >::resize(), and RGBaToGrey().

◆ convert() [19/23]

void vpImageConvert::convert	(	const vpImage< vpRGBa > &	src,
		yarp::sig::ImageOf< yarp::sig::PixelRgb > *	dest
	)

static

Convert a vpImage<vpRGBa> to a yarp::sig::ImageOf<yarp::sig::PixelRgb>

A yarp::sig::Image is a YARP image class. See http://eris.liralab.it/yarpdoc/df/d15/classyarp_1_1sig_1_1Image.html for the YARP image class documentation.

Parameters

[in]	src	: Source image in ViSP format.
[out]	dest	: Destination image in YARP format.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/core/vpRGBa.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_YARP)
  vpImage<vpRGBa> I; // A color image
  // Read an image on a disk
  vpImageIo::read(I,"image.jpg");
 
  yarp::sig::ImageOf< yarp::sig::PixelRgb > *Iyarp = new yarp::sig::ImageOf<yarp::sig::PixelRgb >();
  // Convert the vpImage<vpRGBa> to a yarp::sig::ImageOf<yarp::sig::PixelRgb>
  vpImageConvert::convert(I,Iyarp);
 
  // ...
#endif
}

Definition at line 1106 of file vpImageConvert.cpp.

References vpImage< Type >::getHeight(), vpImage< Type >::getRows(), and vpImage< Type >::getWidth().

◆ convert() [20/23]

void vpImageConvert::convert	(	const vpImage< vpRGBa > &	src,
		yarp::sig::ImageOf< yarp::sig::PixelRgba > *	dest,
		bool	copyData = `true`
	)

static

Convert a vpImage<vpRGBa> to a yarp::sig::ImageOf<yarp::sig::PixelRgba>

A yarp::sig::Image is a YARP image class. See http://eris.liralab.it/yarpdoc/df/d15/classyarp_1_1sig_1_1Image.html for the YARP image class documentation.

Parameters

[in]	src	: Source image in ViSP format.
[in]	dest	: Destination image in YARP format.
[in]	copyData	: Set to true to copy all the image content. If false we only update the image pointer.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/core/vpRGBa.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
#if defined(VISP_HAVE_YARP)
  vpImage<vpRGBa> I; // A color image
  // Read an image on a disk
  vpImageIo::read(I,"image.jpg");
 
  yarp::sig::ImageOf< yarp::sig::PixelRgba > *Iyarp = new yarp::sig::ImageOf<yarp::sig::PixelRgba >();
  // Convert the vpImage<vpRGBa> to a yarp::sig::ImageOf<yarp::sig::PixelRgba>
  vpImageConvert::convert(I,Iyarp);
 
  // ...
#endif
}

Definition at line 1018 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getCols(), vpImage< Type >::getHeight(), vpImage< Type >::getRows(), and vpImage< Type >::getWidth().

◆ convert() [21/23]

void vpImageConvert::convert	(	const yarp::sig::ImageOf< yarp::sig::PixelMono > *	src,
		vpImage< unsigned char > &	dest,
		bool	copyData = `true`
	)

static

Convert a yarp::sig::ImageOf<yarp::sig::PixelMono> to a vpImage<unsigned char>

A yarp::sig::Image is a YARP image class. See http://eris.liralab.it/yarpdoc/df/d15/classyarp_1_1sig_1_1Image.html for the YARP image class documentation.

Parameters

[in]	src	: Source image in YARP format.
[out]	dest	: Destination image in ViSP format.
[in]	copyData	: Set to true to copy all the image content. If false we only update the image pointer.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
#if defined(VISP_HAVE_YARP)
  #include <yarp/sig/ImageFile.h>
#endif
 
int main()
{
#if defined(VISP_HAVE_YARP)
  yarp::sig::ImageOf< yarp::sig::PixelMono > *Iyarp = new yarp::sig::ImageOf<yarp::sig::PixelMono >();
  // Read an image on a disk
  yarp::sig::file::read(*Iyarp, "image.pgm");
 
  // Convert the yarp::sig::ImageOf<yarp::sig::PixelMono> to a vpImage<unsigned char>
  vpImage<unsigned char> I;
  vpImageConvert::convert(Iyarp, I);
 
  // ...
#endif
}

Definition at line 974 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, and vpImage< Type >::resize().

◆ convert() [22/23]

void vpImageConvert::convert	(	const yarp::sig::ImageOf< yarp::sig::PixelRgb > *	src,
		vpImage< vpRGBa > &	dest
	)

static

Convert a yarp::sig::ImageOf<yarp::sig::PixelRgb> to a vpImage<vpRGBa>

A yarp::sig::Image is a YARP image class. See http://eris.liralab.it/yarpdoc/df/d15/classyarp_1_1sig_1_1Image.html for the YARP image class documentation.

The alpha component of the resulting image is set to vpRGBa::alpha_default.

Parameters

[in]	src	: Source image in YARP format.
[out]	dest	: Destination image in ViSP format.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/core/vpRGBa.h>
#include <visp3/io/vpImageIo.h>
 
#if defined(VISP_HAVE_YARP)
  #include <yarp/sig/ImageFile.h>
#endif
 
int main()
{
#if defined(VISP_HAVE_YARP)
  yarp::sig::ImageOf< yarp::sig::PixelRgb > *Iyarp = new yarp::sig::ImageOf<yarp::sig::PixelRgb >();
  // Read an image on a disk
  yarp::sig::file::read(*Iyarp,"image.pgm");
 
  // Convert the yarp::sig::ImageOf<yarp::sig::PixelRgb> to a vpImage<vpRGBa>
  vpImage<vpRGBa> I;
  vpImageConvert::convert(Iyarp,I);
 
  // ...
#endif
}

Definition at line 1156 of file vpImageConvert.cpp.

References vpRGBa::alpha_default, and vpImage< Type >::resize().

◆ convert() [23/23]

void vpImageConvert::convert	(	const yarp::sig::ImageOf< yarp::sig::PixelRgba > *	src,
		vpImage< vpRGBa > &	dest,
		bool	copyData = `true`
	)

static

Convert a yarp::sig::ImageOf<yarp::sig::PixelRgba> to a vpImage<vpRGBa>

A yarp::sig::Image is a YARP image class. See http://eris.liralab.it/yarpdoc/df/d15/classyarp_1_1sig_1_1Image.html for the YARP image class documentation.

Parameters

[in]	src	: Source image in YARP format.
[out]	dest	: Destination image in ViSP format.
[in]	copyData	: Set to true to copy all the image content. If false we only update the image pointer.

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/core/vpRGBa.h>
#include <visp3/io/vpImageIo.h>
 
#if defined(VISP_HAVE_YARP)
  #include <yarp/sig/ImageFile.h>
#endif
 
int main()
{
#if defined(VISP_HAVE_YARP)
  yarp::sig::ImageOf< yarp::sig::PixelRgba > *Iyarp = new yarp::sig::ImageOf<yarp::sig::PixelRgba >();
  // Read an image on a disk
  yarp::sig::file::read(*Iyarp,"image.pgm");
 
  // Convert the yarp::sig::ImageOf<yarp::sig::PixelRgba> to a vpImage<vpRGBa>
  vpImage<vpRGBa> I;
  vpImageConvert::convert(Iyarp,I);
 
  // ...
#endif
}

Definition at line 1065 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, and vpImage< Type >::resize().

◆ createDepthHistogram() [1/4]

void vpImageConvert::createDepthHistogram	(	const vpImage< float > &	src_depth,
		vpImage< unsigned char > &	dest_depth
	)

static

Convert the input float depth image to a 8-bits depth image. The input depth value is assigned a value proportional to its frequency.

Parameters

[in]	src_depth	: Input float depth image.
[out]	dest_depth	: Output grayscale depth image.

Definition at line 239 of file vpImageConvert.cpp.

◆ createDepthHistogram() [2/4]

void vpImageConvert::createDepthHistogram	(	const vpImage< float > &	src_depth,
		vpImage< vpRGBa > &	dest_rgba
	)

static

Convert the input float depth image to a color depth image. The input depth value is assigned a color value proportional to its frequency. The alpha component of the resulting image is set to vpRGBa::alpha_default.

Parameters

[in]	src_depth	: Input float depth image.
[out]	dest_rgba	: Output color depth image.

Definition at line 228 of file vpImageConvert.cpp.

◆ createDepthHistogram() [3/4]

void vpImageConvert::createDepthHistogram	(	const vpImage< uint16_t > &	src_depth,
		vpImage< unsigned char > &	dest_depth
	)

static

Convert the input 16-bits depth image to a 8-bits depth image. The input depth value is assigned a value proportional to its frequency.

Parameters

[in]	src_depth	: Input 16-bits depth image.
[out]	dest_depth	: Output grayscale depth image.

Definition at line 216 of file vpImageConvert.cpp.

◆ createDepthHistogram() [4/4]

void vpImageConvert::createDepthHistogram	(	const vpImage< uint16_t > &	src_depth,
		vpImage< vpRGBa > &	dest_rgba
	)

static

Convert the input 16-bits depth image to a color depth image. The input depth value is assigned a color value proportional to its frequency. Tha alpha component of the resulting image is set to vpRGBa::alpha_default.

Parameters

[in]	src_depth	: Input 16-bits depth image.
[out]	dest_rgba	: Output color depth image.

Definition at line 205 of file vpImageConvert.cpp.

◆ demosaicBGGRToRGBaBilinear() [1/2]

void vpImageConvert::demosaicBGGRToRGBaBilinear	(	const uint16_t *	bggr,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	bggr	: Array of Bayer data arranged into BGGR pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4629 of file vpImageConvert.cpp.

◆ demosaicBGGRToRGBaBilinear() [2/2]

void vpImageConvert::demosaicBGGRToRGBaBilinear	(	const uint8_t *	bggr,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	bggr	: Array of Bayer data arranged into BGGR pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4611 of file vpImageConvert.cpp.

◆ demosaicBGGRToRGBaMalvar() [1/2]

void vpImageConvert::demosaicBGGRToRGBaMalvar	(	const uint16_t *	bggr,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	bggr	: Array of Bayer data arranged into BGGR pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4775 of file vpImageConvert.cpp.

◆ demosaicBGGRToRGBaMalvar() [2/2]

void vpImageConvert::demosaicBGGRToRGBaMalvar	(	const uint8_t *	bggr,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	bggr	: Array of Bayer data arranged into BGGR pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4757 of file vpImageConvert.cpp.

◆ demosaicGBRGToRGBaBilinear() [1/2]

void vpImageConvert::demosaicGBRGToRGBaBilinear	(	const uint16_t *	gbrg,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	gbrg	: Array of Bayer data arranged into GBRG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4665 of file vpImageConvert.cpp.

◆ demosaicGBRGToRGBaBilinear() [2/2]

void vpImageConvert::demosaicGBRGToRGBaBilinear	(	const uint8_t *	gbrg,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	gbrg	: Array of Bayer data arranged into GBRG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4647 of file vpImageConvert.cpp.

◆ demosaicGBRGToRGBaMalvar() [1/2]

void vpImageConvert::demosaicGBRGToRGBaMalvar	(	const uint16_t *	gbrg,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	gbrg	: Array of Bayer data arranged into GBRG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4811 of file vpImageConvert.cpp.

◆ demosaicGBRGToRGBaMalvar() [2/2]

void vpImageConvert::demosaicGBRGToRGBaMalvar	(	const uint8_t *	gbrg,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	gbrg	: Array of Bayer data arranged into GBRG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4793 of file vpImageConvert.cpp.

◆ demosaicGRBGToRGBaBilinear() [1/2]

void vpImageConvert::demosaicGRBGToRGBaBilinear	(	const uint16_t *	grbg,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	grbg	: Array of Bayer data arranged into GRBG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4701 of file vpImageConvert.cpp.

◆ demosaicGRBGToRGBaBilinear() [2/2]

void vpImageConvert::demosaicGRBGToRGBaBilinear	(	const uint8_t *	grbg,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	grbg	: Array of Bayer data arranged into GRBG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4683 of file vpImageConvert.cpp.

◆ demosaicGRBGToRGBaMalvar() [1/2]

void vpImageConvert::demosaicGRBGToRGBaMalvar	(	const uint16_t *	grbg,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	grbg	: Array of Bayer data arranged into GRBG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4847 of file vpImageConvert.cpp.

◆ demosaicGRBGToRGBaMalvar() [2/2]

void vpImageConvert::demosaicGRBGToRGBaMalvar	(	const uint8_t *	grbg,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	grbg	: Array of Bayer data arranged into GRBG pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4829 of file vpImageConvert.cpp.

◆ demosaicRGGBToRGBaBilinear() [1/2]

void vpImageConvert::demosaicRGGBToRGBaBilinear	(	const uint16_t *	rggb,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	rggb	: Array of Bayer data arranged into RGGB pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4737 of file vpImageConvert.cpp.

◆ demosaicRGGBToRGBaBilinear() [2/2]

void vpImageConvert::demosaicRGGBToRGBaBilinear	(	const uint8_t *	rggb,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using bilinear demosaicing method.

Parameters

[in]	rggb	: Array of Bayer data arranged into RGGB pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4719 of file vpImageConvert.cpp.

◆ demosaicRGGBToRGBaMalvar() [1/2]

void vpImageConvert::demosaicRGGBToRGBaMalvar	(	const uint16_t *	rggb,
		uint16_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint16 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	rggb	: Array of Bayer data arranged into RGGB pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Definition at line 4883 of file vpImageConvert.cpp.

◆ demosaicRGGBToRGBaMalvar() [2/2]

void vpImageConvert::demosaicRGGBToRGBaMalvar	(	const uint8_t *	rggb,
		uint8_t *	rgba,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Converts an array of uint8 Bayer data to an array of interleaved R, G, B and A values using Malvar [28] demosaicing method.

Parameters

[in]	rggb	: Array of Bayer data arranged into RGGB pattern.
[out]	rgba	: Array of R, G, B and A values converted from Bayer image.
[in]	width	: Bayer image width.
[in]	height	: Bayer image height.
[in]	nThreads	: Number of OpenMP threads to use if available.

Note: rgba array must be preallocated beforehand. Alpha channel is left as-is.

Examples: testColorConversion.cpp.

Definition at line 4865 of file vpImageConvert.cpp.

◆ GreyToRGB()

void vpImageConvert::GreyToRGB	(	unsigned char *	grey,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Convert from grey image to linear RGB image.

Note: The SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	grey	: Pointer to the bitmap containing the 8-bits grey data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	size	: Image size corresponding to image width * height.

Definition at line 3617 of file vpImageConvert.cpp.

◆ GreyToRGBa() [1/2]

void vpImageConvert::GreyToRGBa	(	unsigned char *	grey,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Convert from grey image to linear RGBa image. The alpha component is set to vpRGBa::alpha_default.

Note: The SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	grey	: Pointer to the bitmap containing the 8-bits grey data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to image width * height.

Definition at line 3602 of file vpImageConvert.cpp.

References GreyToRGBa().

◆ GreyToRGBa() [2/2]

void vpImageConvert::GreyToRGBa	(	unsigned char *	grey,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height
	)

static

Convert from grey image to linear RGBa image. The alpha component is set to vpRGBa::alpha_default.

Note: The SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	grey	: Pointer to the bitmap containing the 8-bits grey data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.

Definition at line 3585 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

Referenced by vp1394CMUGrabber::acquire(), vpV4l2Grabber::acquire(), vp1394TwoGrabber::acquire(), vpOccipitalStructure::acquire(), convert(), vp1394TwoGrabber::dequeue(), and GreyToRGBa().

◆ HSVToRGB() [1/2]

void vpImageConvert::HSVToRGB	(	const double *	hue,
		const double *	saturation,
		const double *	value,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Converts an array of hue, saturation and value to an array of RGB values.

Parameters

[in]	hue	: Array of hue values (range between [0 - 1]).
[in]	saturation	: Array of saturation values (range between [0 - 1]).
[in]	value	: Array of value values (range between [0 - 1]).
[out]	rgb	: Pointer to the 24-bit RGB image that should be allocated with a size of width * height * 3.
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Examples: testDisplayPolygonLines.cpp.

Definition at line 4530 of file vpImageConvert.cpp.

Referenced by HSVToRGB().

◆ HSVToRGB() [2/2]

void vpImageConvert::HSVToRGB	(	const unsigned char *	hue,
		const unsigned char *	saturation,
		const unsigned char *	value,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Converts an array of hue, saturation and value to an array of RGB values.

Parameters

[in]	hue	: Array of hue values (range between [0 - 255]).
[in]	saturation	: Array of saturation values (range between [0 - 255]).
[in]	value	: Array of value values (range between [0 - 255]).
[out]	rgb	: Pointer to the 24-bit RGB image that should be allocated with a size of width * height * 3.
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Definition at line 4546 of file vpImageConvert.cpp.

References HSVToRGB().

◆ HSVToRGBa() [1/2]

void vpImageConvert::HSVToRGBa	(	const double *	hue,
		const double *	saturation,
		const double *	value,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Converts an array of hue, saturation and value to an array of RGBa values.

Alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	hue	: Array of hue values (range between [0 - 1]).
[in]	saturation	: Array of saturation values (range between [0 - 1]).
[in]	value	: Array of value values (range between [0 - 1]).
[out]	rgba	: Pointer to the 32-bit RGBA image that should be allocated with a size of width * height * 4. Alpha channel is here set to vpRGBa::alpha_default.
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Examples: testConversion.cpp.

Definition at line 4450 of file vpImageConvert.cpp.

Referenced by vp::equalizeHistogram(), HSVToRGBa(), and vp::stretchContrastHSV().

◆ HSVToRGBa() [2/2]

void vpImageConvert::HSVToRGBa	(	const unsigned char *	hue,
		const unsigned char *	saturation,
		const unsigned char *	value,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Converts an array of hue, saturation and value to an array of RGBa values.

Alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	hue	: Array of hue values (range between [0 - 255]).
[in]	saturation	: Array of saturation values (range between [0 - 255]).
[in]	value	: Array of value values (range between [0 - 255]).
[out]	rgba	: Pointer to the 32-bit RGBA image that should be allocated with a size of width * height * 4. Alpha channel is here set to vpRGBa::alpha_default.
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Definition at line 4468 of file vpImageConvert.cpp.

References HSVToRGBa().

◆ merge()

void vpImageConvert::merge	(	const vpImage< unsigned char > *	R,
		const vpImage< unsigned char > *	G,
		const vpImage< unsigned char > *	B,
		const vpImage< unsigned char > *	a,
		vpImage< vpRGBa > &	RGBa
	)

static

Merge 4 channels into an RGBa image.

Parameters

[in]	R	: Red channel.
[in]	G	: Green channel.
[in]	B	: Blue channel.
[in]	a	: Alpha channel.
[out]	RGBa	: Destination RGBa image. Image is resized internaly if needed.

Note: If R, G, B, a are provided, the SIMD lib is used to accelerate processing on x86 and ARM architecture.

Examples: grabV4l2MultiCpp11Thread.cpp, testColorConversion.cpp, and testConversion.cpp.

Definition at line 4184 of file vpImageConvert.cpp.

References vpRGBa::A, vpRGBa::B, vpImage< Type >::bitmap, vpException::dimensionError, vpRGBa::G, vpImage< Type >::getHeight(), vpImage< Type >::getWidth(), vpRGBa::R, and vpImage< Type >::resize().

◆ MONO16ToGrey()

void vpImageConvert::MONO16ToGrey	(	unsigned char *	grey16,
		unsigned char *	grey,
		unsigned int	size
	)

static

Converts a MONO16 grey scale image (each pixel is coded by two bytes) into a grey image where each pixels are coded on one byte.

Parameters

[in]	grey16	: Input image to convert (two bytes per pixel).
[out]	grey	: Pointer to the 8-bit grey image (one byte per pixel) that should be allocated with a size of width * height.
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Definition at line 4253 of file vpImageConvert.cpp.

Referenced by vp1394CMUGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ MONO16ToRGBa()

void vpImageConvert::MONO16ToRGBa	(	unsigned char *	grey16,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Converts a MONO16 grey scale image (each pixel is coded by two bytes) into a grey image where each pixels are coded on one byte.

Alpha component is set to vpRGBa::alpha_default.

Parameters

[in]	grey16	: Pointer to the bitmap containing the input image to convert (two bytes per pixel).
[out]	rgba	: Pointer to the 32-bit RGBA image that should be allocated with a size of width * height * 4.
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Definition at line 4275 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

Referenced by vp1394CMUGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ RGBaToGrey() [1/2]

void vpImageConvert::RGBaToGrey	(	unsigned char *	rgba,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert a RGBa image to a greyscale one.

See Charles Pontyon's Colour FAQ http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html

Note: The SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	rgba	: Pointer to the 32-bits RGBA bitmap.
[out]	grey	: Pointer to the bitmap containing the 8-bits grey data that should be allocated with a size of width * height.
[in]	size	: Image size corresponding to image width * height.

Definition at line 3569 of file vpImageConvert.cpp.

◆ RGBaToGrey() [2/2]

void vpImageConvert::RGBaToGrey	(	unsigned char *	rgba,
		unsigned char *	grey,
		unsigned int	width,
		unsigned int	height,
		unsigned int	nThreads = `0`
	)

static

Convert a RGBa image to a greyscale one.

See Charles Pontyon's Colour FAQ http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html

Note: The SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	rgba	: Pointer to the 32-bits RGBA bitmap.
[out]	grey	: Pointer to the bitmap containing the 8-bits grey data that should be allocated with a size of width * height.
[in]	width,height	: Image size.
[in]	nThreads	: When > 0, the value is used to set the number of OpenMP threads used for the conversion.

Definition at line 3537 of file vpImageConvert.cpp.

Referenced by vpV4l2Grabber::acquire(), convert(), and vpRealSense2::getGreyFrame().

◆ RGBaToHSV() [1/2]

void vpImageConvert::RGBaToHSV	(	const unsigned char *	rgba,
		double *	hue,
		double *	saturation,
		double *	value,
		unsigned int	size
	)

static

Converts an array of RGBa to an array of hue, saturation, value values. The alpha channel is not used.

Parameters

[in]	rgba	: Pointer to the 32-bits RGBA bitmap.
[out]	hue	: Array of hue values converted from RGB color space (range between [0 - 1]).
[out]	saturation	: Array of saturation values converted from RGB color space (range between [0 - 1]).
[out]	value	: Array of value values converted from RGB color space (range between [0 - 1]).
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Examples: testConversion.cpp.

Definition at line 4490 of file vpImageConvert.cpp.

Referenced by vp::equalizeHistogram(), RGBaToHSV(), and vp::stretchContrastHSV().

◆ RGBaToHSV() [2/2]

void vpImageConvert::RGBaToHSV	(	const unsigned char *	rgba,
		unsigned char *	hue,
		unsigned char *	saturation,
		unsigned char *	value,
		unsigned int	size
	)

static

Converts an array of RGBa to an array of hue, saturation, value values. The alpha channel is not used.

Parameters

[in]	rgba	: Pointer to the 32-bits RGBA bitmap.
[out]	hue	: Array of hue values converted from RGB color space (range between [0 - 255]).
[out]	saturation	: Array of saturation values converted from RGB color space (range between [0 - 255]).
[out]	value	: Array of value values converted from RGB color space (range between [0 - 255]).
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Definition at line 4507 of file vpImageConvert.cpp.

References RGBaToHSV().

◆ RGBaToRGB()

void vpImageConvert::RGBaToRGB	(	unsigned char *	rgba,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Convert RGB image into RGBa image.

The alpha component of the converted image is set to vpRGBa::alpha_default.

Note: The SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	rgba	: Pointer to the 32-bits RGBA bitmap.
[out]	rgb	: Pointer to the bitmap containing the 24-bits RGB data that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to image width * height.

Examples: testColorConversion.cpp, and testConversion.cpp.

Definition at line 3454 of file vpImageConvert.cpp.

◆ RGBToGrey() [1/2]

void vpImageConvert::RGBToGrey	(	unsigned char *	rgb,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert an RGB image to a greyscale one.

See Charles Pontyon's Colour FAQ http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html

Parameters

[in]	rgb	: Pointer to the 24-bits RGB bitmap.
[out]	grey	: Pointer to the bitmap containing the 8-bits grey data that should be allocated with a size of width * height.
[in]	size	: Image size corresponding to image width * height.

Definition at line 3471 of file vpImageConvert.cpp.

References RGBToGrey().

◆ RGBToGrey() [2/2]

void vpImageConvert::RGBToGrey	(	unsigned char *	rgb,
		unsigned char *	grey,
		unsigned int	width,
		unsigned int	height,
		bool	flip = `false`
	)

static

Converts a RGB image to a greyscale one. Flips the image verticaly if needed. Assumes that grey is already resized.

Note: If flip is false, the SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	rgb	: Pointer to the 24-bits RGB bitmap.
[out]	grey	: Pointer to the bitmap containing the 8-bits grey data that should be allocated with a size of width * height.
[in]	width,height	: Image size.
[in]	flip	: When true, image is flipped vertically.

Examples: testColorConversion.cpp, and testConversion.cpp.

Definition at line 3489 of file vpImageConvert.cpp.

Referenced by vp1394CMUGrabber::acquire(), vpV4l2Grabber::acquire(), vp1394TwoGrabber::dequeue(), vpRealSense2::getGreyFrame(), vpSimulator::getInternalImage(), and RGBToGrey().

◆ RGBToHSV() [1/2]

void vpImageConvert::RGBToHSV	(	const unsigned char *	rgb,
		double *	hue,
		double *	saturation,
		double *	value,
		unsigned int	size
	)

static

Converts an array of RGB to an array of hue, saturation, value values.

Parameters

[in]	rgb	: Pointer to the 24-bits RGB bitmap.
[out]	hue	: Array of hue values converted from RGB color space (range between [0 - 1]).
[out]	saturation	: Array of saturation values converted from RGB color space (range between [0 - 1]).
[out]	value	: Array of value values converted from RGB color space (range between [0 - 1]).
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Definition at line 4567 of file vpImageConvert.cpp.

Referenced by RGBToHSV().

◆ RGBToHSV() [2/2]

void vpImageConvert::RGBToHSV	(	const unsigned char *	rgb,
		unsigned char *	hue,
		unsigned char *	saturation,
		unsigned char *	value,
		unsigned int	size
	)

static

Converts an array of RGB to an array of hue, saturation, value values.

Parameters

[in]	rgb	: Pointer to the 24-bits RGB bitmap.
[out]	hue	: Array of hue values converted from RGB color space (range between [0 - 255]).
[out]	saturation	: Array of saturation values converted from RGB color space (range between [0 - 255]).
[out]	value	: Array of value values converted from RGB color space (range between [0 - 255]).
[in]	size	: The image size or the number of pixels corresponding to the image width * height.

Definition at line 4583 of file vpImageConvert.cpp.

References RGBToHSV().

◆ RGBToRGBa() [1/2]

void vpImageConvert::RGBToRGBa	(	unsigned char *	rgb,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Convert RGB into RGBa.

Alpha component is set to vpRGBa::alpha_default.

Parameters

[in]	rgb	: Pointer to the bitmap containing the 24-bits RGB data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to image width * height.

Examples: testColorConversion.cpp.

Definition at line 3392 of file vpImageConvert.cpp.

Referenced by vp1394CMUGrabber::acquire(), vpV4l2Grabber::acquire(), vp1394TwoGrabber::acquire(), vpOccipitalStructure::acquire(), vp1394TwoGrabber::dequeue(), vpRealSense2::getColorFrame(), and vpSimulator::getInternalImage().

◆ RGBToRGBa() [2/2]

void vpImageConvert::RGBToRGBa	(	unsigned char *	rgb,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height,
		bool	flip = `false`
	)

static

Converts a RGB image to RGBa. Alpha component is set to vpRGBa::alpha_default.

Flips the image verticaly if needed. Assumes that rgba is already resized.

Note: If flip is false, the SIMD lib is used to accelerate processing on x86 and ARM architecture.

Parameters

[in]	rgb	: Pointer to the bitmap containing the 24-bits RGB data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.
[in]	flip	: When true, image is flipped vertically.

Definition at line 3412 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

◆ split()

void vpImageConvert::split	(	const vpImage< vpRGBa > &	src,
		vpImage< unsigned char > *	pR,
		vpImage< unsigned char > *	pG,
		vpImage< unsigned char > *	pB,
		vpImage< unsigned char > *	pa = `NULL`
	)

static

Split an image from vpRGBa format to monochrome channels.

Parameters

[in]	src	: source image.
[out]	pR	: red channel. Set as NULL if not needed.
[out]	pG	: green channel. Set as NULL if not needed.
[out]	pB	: blue channel. Set as NULL if not needed.
[out]	pa	: alpha channel. Set as NULL if not needed.

Output channels are resized if needed.

Note: The SIMD lib is used to accelerate processing on x86 and ARM architecture.

Example code using split:

#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
 
int main()
{
  vpImage<vpRGBa> Ic; // A color image
 
  // Load a color image from the disk
  vpImageIo::read(Ic,"image.ppm");
 
  // Only R and B Channels are desired.
  vpImage<unsigned char> R, B;
 
  // Split Ic color image
  // R and B will be resized in split function if needed
  vpImageConvert::split(Ic, &R, NULL, &B, NULL);
 
  // Save the the R Channel.
  vpImageIo::write(R, "RChannel.pgm");
}

Examples: grabV4l2MultiCpp11Thread.cpp, testColorConversion.cpp, testConversion.cpp, and testGaussianFilter.cpp.

Definition at line 4133 of file vpImageConvert.cpp.

References vpImage< Type >::bitmap, vpImage< Type >::getHeight(), vpImage< Type >::getSize(), vpImage< Type >::getWidth(), and vpImage< Type >::resize().

Referenced by vp::clahe(), vp::equalizeHistogram(), vp::stretchContrast(), and vp::unsharpMask().

◆ YCbCrToGrey()

void vpImageConvert::YCbCrToGrey	(	unsigned char *	ycbcr,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert an image from YCrCb 4:2:2 (Y0 Cr01 Y1 Cb01 Y2 Cr23 Y3 ...) to grey format. Destination grey image memory area has to be allocated before.

In YCrCb (4:2:2) format each pixel is coded using 16 bytes. Byte 0: YO (Luma for Pixel 0) Byte 1: Chroma Red Cr (Red Chroma for Pixel 0 and 1) Byte 2: Y1 (Luma for Pixel 1) Byte 3: Chroma blue Cb (Blue Chroma for Pixel 0 and 1) Byte 4: Y2 (Luma for Pixel 2)
In grey format, each pixel is coded using 8 bytes.

Parameters

[in]	ycbcr	: Pointer to the bitmap containing the YCbCr 4:2:2 data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	size	: Image size corresponding to image width * height.

Definition at line 3970 of file vpImageConvert.cpp.

◆ YCbCrToRGB()

void vpImageConvert::YCbCrToRGB	(	unsigned char *	ycbcr,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Convert an image from YCbCr 4:2:2 (Y0 Cb01 Y1 Cr01 Y2 Cb23 Y3 ...) to RGB format. Destination rgb memory area has to be allocated before.

In YCbCr (4:2:2) format each pixel is coded using 16 bytes. Byte 0: YO (Luma for Pixel 0) Byte 1: Chroma Blue Cb (Blue Chroma for Pixel 0 and 1) Byte 2: Y1 (Luma for Pixel 1) Byte 3: Chroma Red Cr (Red Chroma for Pixel 0 and 1) Byte 4: Y2 (Luma for Pixel 2)
In RGB format, each pixel is coded using 24 bytes. Byte 0: Red Byte 1: Green Byte 2: Blue

Parameters

[in]	ycbcr	: Pointer to the bitmap containing the YCbCr 4:2:2 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	size	: Image size corresponding to image width * height.

Definition at line 3857 of file vpImageConvert.cpp.

References vpDEBUG_TRACE.

◆ YCbCrToRGBa()

void vpImageConvert::YCbCrToRGBa	(	unsigned char *	ycbcr,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Convert an image from YCbCr 4:2:2 (Y0 Cb01 Y1 Cr01 Y2 Cb23 Y3...) to RGBa format. Destination rgba memory area has to be allocated before.

The alpha component of the converted image is set to vpRGBa::alpha_default.

In YCbCr (4:2:2) format each pixel is coded using 16 bytes. Byte 0: YO (Luma for Pixel 0) Byte 1: Chroma Blue Cb (Blue Chroma for Pixel 0 and 1) Byte 2: Y1 (Luma for Pixel 1) Byte 3: Chroma Red Cr (Red Chroma for Pixel 0 and 1) Byte 4: Y2 (Luma for Pixel 2)
In RGBa format, each pixel is coded using 24 bytes. Byte 0: Red Byte 1: Green Byte 2: Blue Byte 3: -

Parameters

[in]	ycbcr	: Pointer to the bitmap containing the YCbCr 4:2:2 data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to image width * height.

Definition at line 3916 of file vpImageConvert.cpp.

References vpRGBa::alpha_default, and vpDEBUG_TRACE.

◆ YCrCbToRGB()

void vpImageConvert::YCrCbToRGB	(	unsigned char *	ycrcb,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Convert an image from YCrCb 4:2:2 (Y0 Cr01 Y1 Cb01 Y2 Cr23 Y3 ...) to RGB format. Destination rgb memory area has to be allocated before.

In YCrCb (4:2:2) format each pixel is coded using 16 bytes. Byte 0: YO (Luma for Pixel 0) Byte 1: Chroma Red Cr (Red Chroma for Pixel 0 and 1) Byte 2: Y1 (Luma for Pixel 1) Byte 3: Chroma blue Cb (Blue Chroma for Pixel 0 and 1) Byte 4: Y2 (Luma for Pixel 2)
In RGB format, each pixel is coded using 24 bytes. Byte 0: Red Byte 1: Green Byte 2: Blue

Parameters

[in]	ycrcb	: Pointer to the bitmap containing the YCbCr 4:2:2 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	size	: Image size corresponding to image width * height.

Definition at line 4002 of file vpImageConvert.cpp.

References vpDEBUG_TRACE.

◆ YCrCbToRGBa()

void vpImageConvert::YCrCbToRGBa	(	unsigned char *	ycrcb,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Convert an image from YCrCb 4:2:2 (Y0 Cr01 Y1 Cb01 Y2 Cr23 Y3 ...) to RGBa format. Destination rgba memory area has to be allocated before.

The alpha component of the resulting image is set to vpRGBa::alpha_default.

In YCrCb (4:2:2) format each pixel is coded using 16 bytes. Byte 0: YO (Luma for Pixel 0) Byte 1: Chroma Red Cr (Red Chroma for Pixel 0 and 1) Byte 2: Y1 (Luma for Pixel 1) Byte 3: Chroma blue Cb (Blue Chroma for Pixel 0 and 1) Byte 4: Y2 (Luma for Pixel 2)
In RGBa format, each pixel is coded using 24 bytes. Byte 0: Red Byte 1: Green Byte 2: Blue Byte 3: -

Parameters

[in]	ycrcb	: Pointer to the bitmap containing the YCrCb 4:2:2 data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to image width * height.

Definition at line 4060 of file vpImageConvert.cpp.

References vpRGBa::alpha_default, and vpDEBUG_TRACE.

◆ YUV411ToGrey()

void vpImageConvert::YUV411ToGrey	(	unsigned char *	yuv,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert YUV 4:1:1 (u y1 y2 v y3 y4) into a grey image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:1:1 data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	size	: Image size corresponding to width * height.

Definition at line 1577 of file vpImageConvert.cpp.

Referenced by vp1394CMUGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ YUV411ToRGB()

void vpImageConvert::YUV411ToRGB	(	unsigned char *	yuv,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Convert YUV 4:1:1 (u y1 y2 v y3 y4) into a RGB 24bits image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:1:1 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	size	: Image size corresponding to width * height.

Definition at line 1714 of file vpImageConvert.cpp.

References YUVToRGB().

◆ YUV411ToRGBa()

void vpImageConvert::YUV411ToRGBa	(	unsigned char *	yuv,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Convert YUV 4:1:1 (u y1 y2 v y3 y4) images into RGBa images. The alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:1:1 data.
[out]	rgba	: Pointer to the RGBA 32-bits bitmap that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to width * height.

Definition at line 1316 of file vpImageConvert.cpp.

References vpRGBa::alpha_default, and YUVToRGB().

Referenced by vp1394CMUGrabber::acquire(), vp1394TwoGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ YUV420ToGrey()

void vpImageConvert::YUV420ToGrey	(	unsigned char *	yuv,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert YUV 4:2:0 [Y(NxM), U(N/2xM/2), V(N/2xM/2)] image into a grey image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:2:0 data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	size	: Image size corresponding to image width * height.

Definition at line 2138 of file vpImageConvert.cpp.

◆ YUV420ToRGB()

void vpImageConvert::YUV420ToRGB	(	unsigned char *	yuv,
		unsigned char *	rgb,
		unsigned int	width,
		unsigned int	height
	)

static

Convert YUV 4:2:0 [Y(NxM), U(N/2xM/2), V(N/2xM/2)] image into a RGB image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:2:0 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	width,height	: Image size.

Definition at line 2007 of file vpImageConvert.cpp.

◆ YUV420ToRGBa()

void vpImageConvert::YUV420ToRGBa	(	unsigned char *	yuv,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height
	)

static

Convert YUV 4:2:0 [Y(NxM), U(N/2xM/2), V(N/2xM/2)] image into a RGBa image.

The alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:2:0 data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.

Definition at line 1871 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

◆ YUV422ToGrey()

void vpImageConvert::YUV422ToGrey	(	unsigned char *	yuv,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert YUV 4:2:2 (u01 y0 v01 y1 u23 y2 v23 y3 ...) images into a grey image. Destination grey memory area has to be allocated before.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:2:2 data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	size	: Image size corresponding to width * height.

See also: YUYVToGrey()

Definition at line 1695 of file vpImageConvert.cpp.

Referenced by vp1394CMUGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ YUV422ToRGB()

void vpImageConvert::YUV422ToRGB	(	unsigned char *	yuv,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Convert YUV 4:2:2 (u01 y0 v01 y1 u23 y2 v23 y3 ...) images into RGB images. Destination rgb memory area has to be allocated before.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:2:2 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	size	: Image size corresponding to width * height.

See also: YUYVToRGB()

Definition at line 1602 of file vpImageConvert.cpp.

References YUVToRGB().

◆ YUV422ToRGBa()

void vpImageConvert::YUV422ToRGBa	(	unsigned char *	yuv,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Convert YUV 4:2:2 (u01 y0 v01 y1 u23 y2 v23 y3 ...) images into RGBa images. Destination rgba memory area has to be allocated before.

The alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:2:2 data.
[out]	rgba	: Pointer to the RGBA 32-bits bitmap that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to width * height.

See also: YUYVToRGBa()

Definition at line 1481 of file vpImageConvert.cpp.

References vpRGBa::alpha_default, and YUVToRGB().

Referenced by vp1394CMUGrabber::acquire(), vp1394TwoGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ YUV444ToGrey()

void vpImageConvert::YUV444ToGrey	(	unsigned char *	yuv,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert YUV 4:4:4 (u y v) image into a grey image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:4:4 data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	size	Image size corresponding to image width * height.

Definition at line 2245 of file vpImageConvert.cpp.

Referenced by vp1394CMUGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ YUV444ToRGB()

void vpImageConvert::YUV444ToRGB	(	unsigned char *	yuv,
		unsigned char *	rgb,
		unsigned int	size
	)

static

Convert YUV 4:4:4 (u y v) image into RGB image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:4:4 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	size	Image size corresponding to image width * height.

Definition at line 2200 of file vpImageConvert.cpp.

◆ YUV444ToRGBa()

void vpImageConvert::YUV444ToRGBa	(	unsigned char *	yuv,
		unsigned char *	rgba,
		unsigned int	size
	)

static

Convert YUV 4:4:4 (u y v) image into a RGBa image.

The alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YUV 4:4:4 data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	size	: Image size corresponding to image width * height.

Definition at line 2154 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

Referenced by vp1394CMUGrabber::acquire(), vp1394TwoGrabber::acquire(), and vp1394TwoGrabber::dequeue().

◆ YUVToRGB()

static void vpImageConvert::YUVToRGB	(	unsigned char	y,
		unsigned char	u,
		unsigned char	v,
		unsigned char &	r,
		unsigned char &	g,
		unsigned char &	b
	)

inlinestatic

Converts a yuv pixel value in rgb format.

Parameters

y	Y component of a pixel.
u	U component of a pixel.
v	V component of a pixel.
r	Red component from the YUV coding format. This value is computed using: $r = 0.9999695y - 0.0009508(u-128) + 1.1359061*(v-128)$
g	Green component from the YUV coding format. This value is computed using: $g = 0.9999695y - 0.3959609(u-128) - 0.5782955*(v-128)$
b	Blue component from the YUV coding format. This value is computed using: $b = 0.9999695y + 2.04112(u-128) - 0.0016314*(v-128)$

Examples: testConversion.cpp.

Definition at line 182 of file vpImageConvert.h.

Referenced by YUV411ToRGB(), YUV411ToRGBa(), YUV422ToRGB(), and YUV422ToRGBa().

◆ YUYVToGrey()

void vpImageConvert::YUYVToGrey	(	unsigned char *	yuyv,
		unsigned char *	grey,
		unsigned int	size
	)

static

Convert an image from YUYV 4:2:2 (y0 u01 y1 v01 y2 u23 y3 v23 ...) to grey. Destination grey memory area has to be allocated before.

Parameters

[in]	yuyv	: Pointer to the bitmap containing the YUYV 4:2:2 data.
[out]	grey	: Pointer to the 8-bits grey bitmap that should be allocated with a size of width * height.
[in]	size	: Image size corresponding to width * height.

See also: YUV422ToGrey()

Definition at line 1296 of file vpImageConvert.cpp.

Referenced by vpV4l2Grabber::acquire().

◆ YUYVToRGB()

void vpImageConvert::YUYVToRGB	(	unsigned char *	yuyv,
		unsigned char *	rgb,
		unsigned int	width,
		unsigned int	height
	)

static

Convert an image from YUYV 4:2:2 (y0 u01 y1 v01 y2 u23 y3 v23 ...) to RGB24. Destination rgb memory area has to be allocated before.

Parameters

[in]	yuyv	: Pointer to the bitmap containing the YUYV 4:2:2 data.
[out]	rgb	: Pointer to the RGB32 bitmap that should be allocated with a size of width * height * 3.
[in]	width,height	: Image size.

See also: YUV422ToRGB()

Definition at line 1244 of file vpImageConvert.cpp.

◆ YUYVToRGBa()

void vpImageConvert::YUYVToRGBa	(	unsigned char *	yuyv,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height
	)

static

Convert an image from YUYV 4:2:2 (y0 u01 y1 v01 y2 u23 y3 v23 ...) to RGB32. Destination rgba memory area has to be allocated before.

The alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	yuyv	: Pointer to the bitmap containing the YUYV 4:2:2 data.
[out]	rgba	: Pointer to the RGB32 bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.

See also: YUV422ToRGBa()

Definition at line 1190 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

Referenced by vpV4l2Grabber::acquire().

◆ YV12ToRGB()

void vpImageConvert::YV12ToRGB	(	unsigned char *	yuv,
		unsigned char *	rgb,
		unsigned int	height,
		unsigned int	width
	)

static

Convert YV12 [Y(NxM), V(N/2xM/2), U(N/2xM/2)] image into RGB image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YV 1:2 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	width,height	: Image size.

Definition at line 2400 of file vpImageConvert.cpp.

◆ YV12ToRGBa()

void vpImageConvert::YV12ToRGBa	(	unsigned char *	yuv,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height
	)

static

Convert YV 1:2 [Y(NxM), V(N/2xM/2), U(N/2xM/2)] image into RGBa image.

The alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YV 1:2 data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.

Definition at line 2264 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

◆ YVU9ToRGB()

void vpImageConvert::YVU9ToRGB	(	unsigned char *	yuv,
		unsigned char *	rgb,
		unsigned int	height,
		unsigned int	width
	)

static

Convert YV 1:2 [Y(NxM), V(N/4xM/4), U(N/4xM/4)] image into RGB image.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YV 1:2 data.
[out]	rgb	: Pointer to the 24-bits RGB bitmap that should be allocated with a size of width * height * 3.
[in]	width,height	: Image size.

Definition at line 2970 of file vpImageConvert.cpp.

◆ YVU9ToRGBa()

void vpImageConvert::YVU9ToRGBa	(	unsigned char *	yuv,
		unsigned char *	rgba,
		unsigned int	width,
		unsigned int	height
	)

static

Convert YVU 9 [Y(NxM), V(N/4xM/4), U(N/4xM/4)] image into a RGBa image.

The alpha component of the converted image is set to vpRGBa::alpha_default.

Parameters

[in]	yuv	: Pointer to the bitmap containing the YVU 9 data.
[out]	rgba	: Pointer to the 32-bits RGBA bitmap that should be allocated with a size of width * height * 4.
[in]	width,height	: Image size.

Definition at line 2534 of file vpImageConvert.cpp.

References vpRGBa::alpha_default.

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ BGRaToGrey()

◆ BGRaToRGBa()

◆ BGRToGrey()

◆ BGRToRGBa()

◆ convert() [1/23]

◆ convert() [2/23]

◆ convert() [3/23]

◆ convert() [4/23]

◆ convert() [5/23]

◆ convert() [6/23]

◆ convert() [7/23]

◆ convert() [8/23]

◆ convert() [9/23]

◆ convert() [10/23]

◆ convert() [11/23]

◆ convert() [12/23]

◆ convert() [13/23]

◆ convert() [14/23]

◆ convert() [15/23]

◆ convert() [16/23]

◆ convert() [17/23]

◆ convert() [18/23]

◆ convert() [19/23]

◆ convert() [20/23]

◆ convert() [21/23]

◆ convert() [22/23]

◆ convert() [23/23]

◆ createDepthHistogram() [1/4]

◆ createDepthHistogram() [2/4]

◆ createDepthHistogram() [3/4]

◆ createDepthHistogram() [4/4]

◆ demosaicBGGRToRGBaBilinear() [1/2]

◆ demosaicBGGRToRGBaBilinear() [2/2]

◆ demosaicBGGRToRGBaMalvar() [1/2]

◆ demosaicBGGRToRGBaMalvar() [2/2]

◆ demosaicGBRGToRGBaBilinear() [1/2]

◆ demosaicGBRGToRGBaBilinear() [2/2]

◆ demosaicGBRGToRGBaMalvar() [1/2]

◆ demosaicGBRGToRGBaMalvar() [2/2]

◆ demosaicGRBGToRGBaBilinear() [1/2]

◆ demosaicGRBGToRGBaBilinear() [2/2]

◆ demosaicGRBGToRGBaMalvar() [1/2]

◆ demosaicGRBGToRGBaMalvar() [2/2]

◆ demosaicRGGBToRGBaBilinear() [1/2]

◆ demosaicRGGBToRGBaBilinear() [2/2]

◆ demosaicRGGBToRGBaMalvar() [1/2]

◆ demosaicRGGBToRGBaMalvar() [2/2]

◆ GreyToRGB()

◆ GreyToRGBa() [1/2]

◆ GreyToRGBa() [2/2]

◆ HSVToRGB() [1/2]

◆ HSVToRGB() [2/2]

◆ HSVToRGBa() [1/2]

◆ HSVToRGBa() [2/2]

◆ merge()

◆ MONO16ToGrey()

◆ MONO16ToRGBa()

◆ RGBaToGrey() [1/2]

◆ RGBaToGrey() [2/2]

◆ RGBaToHSV() [1/2]

◆ RGBaToHSV() [2/2]

◆ RGBaToRGB()

◆ RGBToGrey() [1/2]

◆ RGBToGrey() [2/2]

◆ RGBToHSV() [1/2]

◆ RGBToHSV() [2/2]

◆ RGBToRGBa() [1/2]

◆ RGBToRGBa() [2/2]

◆ split()

◆ YCbCrToGrey()

◆ YCbCrToRGB()

◆ YCbCrToRGBa()

◆ YCrCbToRGB()

◆ YCrCbToRGBa()

◆ YUV411ToGrey()

◆ YUV411ToRGB()

◆ YUV411ToRGBa()