ViSP  2.10.0
testConversion.cpp

Manipulation of image conversions.

/****************************************************************************
*
* $Id: testConversion.cpp 5023 2014-12-03 16:07:48Z fspindle $
*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2014 by INRIA. All rights reserved.
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.txt at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using ViSP with software that can not be combined with the GNU
* GPL, please contact INRIA about acquiring a ViSP Professional
* Edition License.
*
* See http://www.irisa.fr/lagadic/visp/visp.html for more information.
*
* This software was developed at:
* INRIA Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
* http://www.irisa.fr/lagadic
*
* If you have questions regarding the use of this file, please contact
* INRIA at visp@inria.fr
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*
* Description:
* Test for image conversions.
*
* Authors:
* Fabien Spindler
*
*****************************************************************************/
#include <stdlib.h>
#include <visp/vpConfig.h>
#include <visp/vpImage.h>
#include <visp/vpImageIo.h>
#include <visp/vpImageConvert.h>
#include <visp/vpParseArgv.h>
#include <visp/vpIoTools.h>
#include <visp/vpDebug.h>
#include <visp/vpTime.h>
// List of allowed command line options
#define GETOPTARGS "i:o:h"
void usage(const char *name, const char *badparam, std::string ipath, std::string opath, std::string user);
bool getOptions(int argc, const char **argv, std::string &ipath, std::string &opath, std::string user);
/*
Print the program options.
\param name : Program name.
\param badparam : Bad parameter name.
\param ipath: Input image path.
\param opath : Output image path.
\param user : Username.
*/
void usage(const char *name, const char *badparam, std::string ipath, std::string opath, std::string user)
{
fprintf(stdout, "\n\
Test image conversions.\n\
\n\
SYNOPSIS\n\
%s [-i <input image path>] [-o <output image path>]\n\
[-h]\n \
", name);
fprintf(stdout, "\n\
OPTIONS: Default\n\
-i <input image path> %s\n\
Set image input path.\n\
From this path read \"ViSP-images/Klimt/Klimt.pgm\"\n\
and \"ViSP-images/Klimt/Klimt.ppm\" images.\n\
Setting the VISP_INPUT_IMAGE_PATH environment\n\
variable produces the same behaviour than using\n\
this option.\n\
\n\
-o <output image path> %s\n\
Set image output path.\n\
From this directory, creates the \"%s\"\n\
subdirectory depending on the username, where \n\
Klimt_grey.pgm and Klimt_color.ppm output images\n\
are written.\n\
\n\
-h\n\
Print the help.\n\n",
ipath.c_str(), opath.c_str(), user.c_str());
if (badparam)
fprintf(stdout, "\nERROR: Bad parameter [%s]\n", badparam);
}
bool getOptions(int argc, const char **argv, std::string &ipath, std::string &opath, std::string user)
{
const char *optarg_;
int c;
while ((c = vpParseArgv::parse(argc, argv, GETOPTARGS, &optarg_)) > 1) {
switch (c) {
case 'i': ipath = optarg_; break;
case 'o': opath = optarg_; break;
case 'h': usage(argv[0], NULL, ipath, opath, user); return false; break;
default:
usage(argv[0], optarg_, ipath, opath, user); return false; break;
}
}
if ((c == 1) || (c == -1)) {
// standalone param or error
usage(argv[0], NULL, ipath, opath, user);
std::cerr << "ERROR: " << std::endl;
std::cerr << " Bad argument " << optarg_ << std::endl << std::endl;
return false;
}
return true;
}
int
main(int argc, const char ** argv)
{
try {
std::string env_ipath;
std::string opt_ipath;
std::string opt_opath;
std::string ipath;
std::string opath;
std::string filename;
std::string username;
// Get the visp-images-data package path or VISP_INPUT_IMAGE_PATH environment variable value
// Set the default input path
if (! env_ipath.empty())
ipath = env_ipath;
// Set the default output path
#if defined(_WIN32)
opt_opath = "C:/temp";
#else
opt_opath = "/tmp";
#endif
// Get the user login name
// Read the command line options
if (getOptions(argc, argv, opt_ipath, opt_opath, username) == false) {
exit (-1);
}
// Get the option values
if (!opt_ipath.empty())
ipath = opt_ipath;
if (!opt_opath.empty())
opath = opt_opath;
// Append to the output path string, the login name of the user
opath = vpIoTools::createFilePath(opath, username);
// Test if the output path exist. If no try to create it
if (vpIoTools::checkDirectory(opath) == false) {
try {
// Create the dirname
}
catch (...) {
usage(argv[0], NULL, ipath, opt_opath, username);
std::cerr << std::endl
<< "ERROR:" << std::endl;
std::cerr << " Cannot create " << opath << std::endl;
std::cerr << " Check your -o " << opt_opath << " option " << std::endl;
exit(-1);
}
}
// Compare ipath and env_ipath. If they differ, we take into account
// the input path comming from the command line option
if (opt_ipath.empty()) {
if (ipath != env_ipath) {
std::cout << std::endl
<< "WARNING: " << std::endl;
std::cout << " Since -i <visp image path=" << ipath << "> "
<< " is different from VISP_IMAGE_PATH=" << env_ipath << std::endl
<< " we skip the environment variable." << std::endl;
}
}
// Test if an input path is set
if (opt_ipath.empty() && env_ipath.empty()){
usage(argv[0], NULL, ipath, opt_opath, username);
std::cerr << std::endl
<< "ERROR:" << std::endl;
std::cerr << " Use -i <visp image path> option or set VISP_INPUT_IMAGE_PATH "
<< std::endl
<< " environment variable to specify the location of the " << std::endl
<< " image path where test images are located." << std::endl << std::endl;
exit(-1);
}
//
// Here starts really the test
//
vpImage<unsigned char> Ig ; // Grey image
vpImage<vpRGBa> Ic ; // Color image
//-------------------- .pgm -> .ppm
vpTRACE("Convert a grey image (.pgm) to a color image (.ppm)");
// Load a grey image from the disk
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.pgm");
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Ig, filename) ;
// Create a color image from the grey
filename = vpIoTools::createFilePath(opath, "Klimt_color.ppm");
vpCTRACE << "Write " << filename << std::endl;
vpImageIo::write(Ic, filename) ;
//-------------------- .ppm -> .pgm
vpTRACE("Convert a color image (.ppm) to a grey image (.pgm)");
// Load a color image from the disk
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Ic, filename) ;
// Create a grey image from the color
filename = vpIoTools::createFilePath(opath, "Klimt_grey.pgm");
vpCTRACE << "Write " << filename << std::endl;
vpImageIo::write(Ig, filename) ;
//-------------------- YUV -> RGB
unsigned char y=187, u=10, v=30;
unsigned char r, g, b;
// Convert a YUV pixel value to a RGB value
vpImageConvert::YUVToRGB(y, u, v, r, g, b);
vpTRACE("y(%d) u(%d) v(%d) = r(%d) g(%d) b(%d)", y, u, v, r, g, b);
#ifdef VISP_HAVE_OPENCV
#if VISP_HAVE_OPENCV_VERSION < 0x020408
double t0 = vpTime::measureTimeMs();
// Convert a IplImage to a vpImage<vpRGBa>
IplImage* image = NULL;
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
/* Read the color image */
vpCTRACE << "Reading the color image with opencv: "<< std::endl
<< filename << std::endl;
if((image = cvLoadImage(filename.c_str(), CV_LOAD_IMAGE_COLOR)) == NULL) {
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return (-1);
}
filename = vpIoTools::createFilePath(opath, "Klimt_color_cv.ppm");
/* Save the the current image */
vpImageIo::write(Ic, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.pgm");
/* Read the pgm image */
vpCTRACE << "Reading the greyscale image with opencv: "<< std::endl
<< filename << std::endl;
if(image!=NULL) cvReleaseImage( &image );
if((image = cvLoadImage(filename.c_str(), CV_LOAD_IMAGE_GRAYSCALE)) == NULL) {
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return (-1);
}
filename = vpIoTools::createFilePath(opath, "Klimt_grey_cv.ppm");
/* Save the the current image */
vpImageIo::write(Ic, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
// Convert a IplImage to a vpImage<unsigned char>
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
/* Read the color image */
vpCTRACE << "Reading the color image with opencv: "<< std::endl
<< filename << std::endl;
if(image!=NULL) cvReleaseImage( &image );
if((image = cvLoadImage(filename.c_str(), CV_LOAD_IMAGE_COLOR)) == NULL) {
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return (-1);
}
filename = vpIoTools::createFilePath(opath, "Klimt_color_cv.pgm");
/* Save the the current image */
vpImageIo::write(Ig, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.pgm");
/* Read the pgm image */
vpCTRACE << "Reading the greyscale image with opencv: "<< std::endl
<< filename << std::endl;
if(image!=NULL) cvReleaseImage( &image );
if((image = cvLoadImage(filename.c_str(), CV_LOAD_IMAGE_GRAYSCALE)) == NULL) {
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return (-1);
}
filename = vpIoTools::createFilePath(opath, "Klimt_grey_cv.pgm");
/* Save the the current image */
vpImageIo::write(Ig, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
// Convert a vpImage<vpRGBa> to a IplImage
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
/* Read the color image */
// Load a color image from the disk
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Ic, filename) ;
filename = vpIoTools::createFilePath(opath, "Klimt_ipl_color_cv.ppm");
/* Save the the current image */
vpCTRACE << "Write " << filename << std::endl;
if((cvSaveImage(filename.c_str(), image)) == 0) {
vpCTRACE<<"Cannot write image: "<< std::endl << filename << std::endl;
if(image!=NULL) cvReleaseImage( &image );
return (-1);
}
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
// Convert a IplImage to a vpImage<unsigned char>
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.pgm");
/* Read the grey image */
// Load a color image from the disk
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Ig, filename) ;
filename = vpIoTools::createFilePath(opath, "Klimt_ipl_grey_cv.pgm");
/* Save the the current image */
vpCTRACE << "Write " << filename << std::endl;
if((cvSaveImage(filename.c_str(), image)) == 0) {
vpCTRACE<<"Cannot write image: "<< std::endl << filename << std::endl;
if(image!=NULL) cvReleaseImage( &image );
return (-1);
}
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
if(image!=NULL) cvReleaseImage( &image );
double t1 = vpTime::measureTimeMs();
std::cout << "Conversion c interface : " << t1 - t0 << " ms" << std::endl;
#endif
/* ------------------------------------------------------------------------ */
/* conversion for the new c++ interface */
/* ------------------------------------------------------------------------ */
#if VISP_HAVE_OPENCV_VERSION >= 0x020100
double t2 = vpTime::measureTimeMs();
// Convert a cv::Mat to a vpImage<vpRGBa>
cv::Mat imageMat;
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
vpCTRACE << "Reading the color image with c++ interface of opencv: "<< std::endl
<< filename << std::endl;
imageMat = cv::imread(filename, 1);// force to a three channel color image.
if(imageMat.data == NULL){
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return -1;
}
vpImageConvert::convert(imageMat, Ic);
filename = vpIoTools::createFilePath(opath, "Klimt_color_cvMat.ppm");
/* Save the the current image */
vpImageIo::write(Ic, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.pgm");
/* Read the pgm image */
vpCTRACE << "Reading the greyscale image with opencv: "<< std::endl
<< filename << std::endl;
imageMat = cv::imread(filename, 0);// forced to grayscale.
if(imageMat.data == NULL) {
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return (-1);
}
vpImageConvert::convert(imageMat, Ic);
filename = vpIoTools::createFilePath(opath, "Klimt_grey_cvMat.ppm");
/* Save the the current image */
vpImageIo::write(Ic, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
// Convert a cv::Mat to a vpImage<unsigned char>
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
/* Read the color image */
vpCTRACE << "Reading the color image with opencv: "<< std::endl
<< filename << std::endl;
imageMat = cv::imread(filename, 1);// force to a three channel color image.
if(imageMat.data == NULL){
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return -1;
}
vpImageConvert::convert(imageMat, Ig);
filename = vpIoTools::createFilePath(opath, "Klimt_color_cvMat.pgm");
/* Save the the current image */
vpImageIo::write(Ig, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.pgm");
/* Read the pgm image */
vpCTRACE << "Reading the greyscale image with opencv: "<< std::endl
<< filename << std::endl;
imageMat = cv::imread(filename, 0);
if(imageMat.data == NULL){
vpCTRACE<<"Cannot read image: "<< std::endl << filename << std::endl;
return (-1);
}
vpImageConvert::convert(imageMat, Ig);
filename = vpIoTools::createFilePath(opath, "Klimt_grey_cvMat.pgm");
/* Save the the current image */
vpImageIo::write(Ig, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
// Convert a vpImage<vpRGBa> to a cv::Mat
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
/* Read the color image */
// Load a color image from the disk
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Ic, filename) ;
vpImageConvert::convert(Ic, imageMat);
filename = vpIoTools::createFilePath(opath, "Klimt_ipl_color_cvMat.ppm");
/* Save the the current image */
vpCTRACE << "Write " << filename << std::endl;
if(!cv::imwrite(filename, imageMat)){
vpCTRACE<<"Cannot write image: "<< std::endl << filename << std::endl;
return (-1);
}
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
// Convert a IplImage to a vpImage<unsigned char>
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.pgm");
/* Read the grey image */
// Load a color image from the disk
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Ig, filename);
vpImageConvert::convert(Ig, imageMat);
filename = vpIoTools::createFilePath(opath, "Klimt_ipl_grey_cvMat.pgm");
/* Save the the current image */
vpCTRACE << "Write " << filename << std::endl;
if(!cv::imwrite(filename, imageMat)){
vpCTRACE<<"Cannot write image: "<< std::endl << filename << std::endl;
return (-1);
}
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
double t3 = vpTime::measureTimeMs();
std::cout << "Conversion c++ interface : " << t3 - t2 << " ms" << std::endl;
#endif
#endif
// Split a vpImage<vpRGBa> to vpImage<unsigned char>
filename = vpIoTools::createFilePath(ipath, "ViSP-images/Klimt/Klimt.ppm");
/* Read the color image */
// Load a color image from the disk
vpCTRACE << "Load " << filename << std::endl;
vpImageIo::read(Ic, filename) ;
vpImageConvert::split(Ic, &R,NULL,&B);
double begintime = vpTime::measureTimeMs();
for(int i=0; i<1000;i++){
vpImageConvert::split(Ic, &R,NULL,&B);
}
double endtime = vpTime::measureTimeMs();
std::cout<<"Time for 1000 split (ms): "<< endtime - begintime <<std::endl;
filename = vpIoTools::createFilePath(opath, "Klimt_RChannel.pgm");
/* Save the the current image */
vpCTRACE << "Write " << filename << std::endl;
vpImageIo::write(R, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
filename = vpIoTools::createFilePath(opath, "Klimt_BChannel.pgm");
/* Save the the current image */
vpCTRACE << "Write " << filename << std::endl;
vpImageIo::write(B, filename) ;
vpCTRACE<< "Convert result in "<<std::endl<< filename << std::endl;
return 0;
}
catch(vpException e) {
std::cout << "Catch an exception: " << e << std::endl;
return 1;
}
}