Gamma correction

Functions
VISP_EXPORT void	VISP_NAMESPACE_NAME::gammaCorrection (VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &I, const float &gamma, const vpGammaMethod &method=GAMMA_MANUAL, const VISP_NAMESPACE_ADDRESSING vpImage< bool > *p_mask=nullptr)
VISP_EXPORT void	VISP_NAMESPACE_NAME::gammaCorrection (const VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &I1, VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &I2, const float &gamma, const vpGammaMethod &method=GAMMA_MANUAL, const VISP_NAMESPACE_ADDRESSING vpImage< bool > *p_mask=nullptr)
VISP_EXPORT void	VISP_NAMESPACE_NAME::gammaCorrection (VISP_NAMESPACE_ADDRESSING vpImage< VISP_NAMESPACE_ADDRESSING vpRGBa > &I, const float &gamma, const vpGammaColorHandling &colorHandling=GAMMA_RGB, const vpGammaMethod &method=GAMMA_MANUAL, const VISP_NAMESPACE_ADDRESSING vpImage< bool > *p_mask=nullptr)
VISP_EXPORT void	VISP_NAMESPACE_NAME::gammaCorrection (const VISP_NAMESPACE_ADDRESSING vpImage< VISP_NAMESPACE_ADDRESSING vpRGBa > &I1, VISP_NAMESPACE_ADDRESSING vpImage< VISP_NAMESPACE_ADDRESSING vpRGBa > &I2, const float &gamma, const vpGammaColorHandling &colorHandling=GAMMA_RGB, const vpGammaMethod &method=GAMMA_MANUAL, const VISP_NAMESPACE_ADDRESSING vpImage< bool > *p_mask=nullptr)

Detailed Description

Gamma correction.

Function Documentation

gammaCorrection() [1/4]

VISP_EXPORT void VISP_NAMESPACE_NAME::gammaCorrection	(	const VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &	I1,
		VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &	I2,
		const float &	gamma,
		const vpGammaMethod &	method = GAMMA_MANUAL,
		const VISP_NAMESPACE_ADDRESSING vpImage< bool > *	p_mask = nullptr
	)

Perform a gamma correction on a grayscale image.

Parameters

[in]	I1	: The first grayscale image.
[out]	I2	: The second grayscale image after gamma correction.
[in]	gamma	: Gamma value. If equals to -1, use automatic Gamma correction based on a non-linear technique. If equals to -2, use automatic Gamma correction based on a logarithmic technique. If equals to -3, uses automatic Gamma correction based on classification. If equals to -4, uses automatic Gamma correction based on probabilistic.
[in]	method	: The method to use: either GAMMA_MANUAL if the user wants to use a positive constant gamma factor, or one of the automatic method if gamma is negative.
[in]	p_mask	: If different from nullptr, permits to indicate which points must be taken into account by setting them to true.

gammaCorrection() [2/4]

VISP_EXPORT void VISP_NAMESPACE_NAME::gammaCorrection	(	const VISP_NAMESPACE_ADDRESSING vpImage< VISP_NAMESPACE_ADDRESSING vpRGBa > &	I1,
		VISP_NAMESPACE_ADDRESSING vpImage< VISP_NAMESPACE_ADDRESSING vpRGBa > &	I2,
		const float &	gamma,
		const vpGammaColorHandling &	colorHandling = GAMMA_RGB,
		const vpGammaMethod &	method = GAMMA_MANUAL,
		const VISP_NAMESPACE_ADDRESSING vpImage< bool > *	p_mask = nullptr
	)

Perform a gamma correction on a color image.

Parameters

[in]	I1	: The first color image.
[out]	I2	: The second color image after gamma correction.
[in]	gamma	: Gamma value.
[in]	colorHandling	: How to handle the colors of the image.
[in]	method	: The method to use: either GAMMA_MANUAL if the user wants to use a positive constant gamma factor, or one of the automatic method if gamma is negative.
[in]	p_mask	: If different from nullptr, permits to indicate which points must be taken into account by setting them to true.

gammaCorrection() [3/4]

VISP_EXPORT void VISP_NAMESPACE_NAME::gammaCorrection	(	VISP_NAMESPACE_ADDRESSING vpImage< unsigned char > &	I,
		const float &	gamma,
		const vpGammaMethod &	method = GAMMA_MANUAL,
		const VISP_NAMESPACE_ADDRESSING vpImage< bool > *	p_mask = nullptr
	)

Perform a gamma correction on a grayscale image.

Parameters

[in,out]	I	: The grayscale image to apply gamma correction.
[in]	gamma	: Gamma value. If equals to -1, use automatic Gamma correction based on a non-linear technique. If equals to -2, use automatic Gamma correction based on a logarithmic technique. If equals to -3, uses automatic Gamma correction based on classification. If equals to -4, uses automatic Gamma correction based on probabilistic.
[in]	method	: The method to use: either GAMMA_MANUAL if the user wants to use a positive constant gamma factor, or one of the automatic method if gamma is negative.
[in]	p_mask	: If different from nullptr, permits to indicate which points must be taken into account by setting them to true.

Examples

testImgproc.cpp, and tutorial-brightness-adjustment.cpp.

Referenced by VISP_NAMESPACE_NAME::gammaCorrection().

gammaCorrection() [4/4]

VISP_EXPORT void VISP_NAMESPACE_NAME::gammaCorrection	(	VISP_NAMESPACE_ADDRESSING vpImage< VISP_NAMESPACE_ADDRESSING vpRGBa > &	I,
		const float &	gamma,
		const vpGammaColorHandling &	colorHandling = GAMMA_RGB,
		const vpGammaMethod &	method = GAMMA_MANUAL,
		const VISP_NAMESPACE_ADDRESSING vpImage< bool > *	p_mask = nullptr
	)

Perform a gamma correction on a color image.

Parameters

[in,out]	I	: The color image to apply gamma correction.
[in]	gamma	: Gamma value.
[in]	colorHandling	: How to handle the colors of the image.
[in]	method	: The method to use: either GAMMA_MANUAL if the user wants to use a positive constant gamma factor, or one of the automatic method if gamma is negative.
[in]	p_mask	: If different from nullptr, permits to indicate which points must be taken into account by setting them to true.