Visual Servoing Platform  version 3.2.0 under development (2018-12-12)
testReadImage.cpp

Read images on the disk.

/****************************************************************************
*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2017 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 as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* 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://visp.inria.fr for more information.
*
* This software was developed at:
* Inria Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
*
* 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:
* Read images on the disk.
*
* Authors:
* Nicolas Melchior
*
*****************************************************************************/
#include <visp3/core/vpDebug.h>
#include <visp3/core/vpImage.h>
#include <visp3/core/vpIoTools.h>
#include <visp3/io/vpImageIo.h>
#include <visp3/io/vpParseArgv.h>
#include <stdlib.h>
// List of allowed command line options
#define GETOPTARGS "cdi:p:h"
void usage(const char *name, const char *badparam, std::string ipath);
bool getOptions(int argc, const char **argv, std::string &ipath, std::string &ppath);
/*
Print the program options.
\param name : Program name.
\param badparam : Bad parameter name.
\param ipath: Input image path.
*/
void usage(const char *name, const char *badparam, std::string ipath)
{
fprintf(stdout, "\n\
Read images on the disk.\n\
\n\
SYNOPSIS\n\
%s [-i <input image path>] [-p <personal 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 \"Klimt/Klimt.pgm,\n\
.ppm, .jpeg and .png images.\n\
Setting the VISP_INPUT_IMAGE_PATH environment\n\
variable produces the same behaviour than using\n\
this option.\n\
\n\
-p <personal image path> \n\
Path to an image used to test image reading function.\n\
Example: -p /my_path_to/image.png\n\
\n\
-h\n\
Print the help.\n\n", ipath.c_str());
if (badparam)
fprintf(stdout, "\nERROR: Bad parameter [%s]\n", badparam);
}
bool getOptions(int argc, const char **argv, std::string &ipath, std::string &ppath)
{
const char *optarg_;
int c;
while ((c = vpParseArgv::parse(argc, argv, GETOPTARGS, &optarg_)) > 1) {
switch (c) {
case 'i':
ipath = optarg_;
break;
case 'p':
ppath = optarg_;
break;
case 'h':
usage(argv[0], NULL, ipath);
return false;
break;
case 'c':
case 'd':
break;
default:
usage(argv[0], optarg_, ipath);
return false;
break;
}
}
if ((c == 1) || (c == -1)) {
// standalone param or error
usage(argv[0], NULL, ipath);
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_ppath;
std::string ipath;
std::string filename;
// 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;
// Read the command line options
if (getOptions(argc, argv, opt_ipath, opt_ppath) == false) {
exit(-1);
}
// Get the option values
if (!opt_ipath.empty())
ipath = opt_ipath;
// 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() && !env_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;
}
}
//
// Here starts really the test
//
// Create a grey level image
// vpImage<vpRGBa> I;
if (opt_ppath.empty()) {
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.ppm");
vpImageIo::read(I, filename);
printf("Read ppm ok\n");
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.pgm");
vpImageIo::read(I, filename);
printf("Read pgm ok\n");
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.jpeg");
vpImageIo::read(I, filename);
printf("Read jpeg ok\n");
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.png");
vpImageIo::read(I, filename);
printf("Read png ok\n");
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.ppm");
vpImageIo::read(Irgb, filename);
printf("Read ppm ok\n");
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.pgm");
vpImageIo::read(Irgb, filename);
printf("Read pgm ok\n");
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.jpeg");
vpImageIo::read(Irgb, filename);
printf("Read jpeg ok\n");
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.png");
vpImageIo::read(Irgb, filename);
printf("Read png ok\n");
} else {
filename = opt_ppath;
vpImageIo::read(I, filename);
printf("Image \"%s\" read successfully\n", filename.c_str());
}
} catch (const vpException &e) {
std::cout << "Catch an exception: " << e.getMessage() << std::endl;
}
return 0;
}