Visual Servoing Platform  version 3.2.0 under development (2018-12-17)
testImageResize.cpp

Test image resize.

/****************************************************************************
*
* 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:
* Test image resize.
*
*****************************************************************************/
#include <visp3/core/vpDisplay.h>
#include <visp3/core/vpImage.h>
#include <visp3/core/vpImageTools.h>
#include <visp3/core/vpIoTools.h>
#include <visp3/io/vpImageIo.h>
#include <visp3/io/vpParseArgv.h>
#include <visp3/gui/vpDisplayD3D.h>
#include <visp3/gui/vpDisplayGDI.h>
#include <visp3/gui/vpDisplayGTK.h>
#include <visp3/gui/vpDisplayOpenCV.h>
#include <visp3/gui/vpDisplayX.h>
// List of allowed command line options
#define GETOPTARGS "cdi:W:H:m:h"
namespace
{
/*
Print the program options.
\param name : Program name.
\param badparam : Bad parameter name.
\param ipath: Input image path.
\param w : Resize width.
\param h : Resize height.
\param m : Resize interpolation method.
*/
void usage(const char *name, const char *badparam, std::string ipath, unsigned int &w, unsigned int &h, int &m)
{
fprintf(stdout, "\n\
Test image resize.\n\
\n\
SYNOPSIS\n\
%s [-i <input image path>] [-W <width>] [-H <height>] [-m <method>] [-c] [-d]\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\
image.\n\
Setting the VISP_INPUT_IMAGE_PATH environment\n\
variable produces the same behaviour than using\n\
this option.\n\
\n\
-W <width> %u\n\
Set the new image width.\n\
\n\
-H <height> %u\n\
Set the new image height.\n\
\n\
-m <method> %d\n\
Set resize interpolation method.\n\
\n\
-c \n\
Disable mouse click.\n\
\n\
-d \n\
Disable image display.\n\
\n\
-h\n\
Print the help.\n\n", ipath.c_str(), w, h, m);
if (badparam)
fprintf(stdout, "\nERROR: Bad parameter [%s]\n", badparam);
}
bool getOptions(int argc, const char **argv, std::string &ipath, unsigned int &w, unsigned int &h, int &method,
bool &opt_display, bool &opt_click)
{
const char *optarg_;
int c;
while ((c = vpParseArgv::parse(argc, argv, GETOPTARGS, &optarg_)) > 1) {
switch (c) {
case 'i':
ipath = optarg_;
break;
case 'W':
w = (unsigned int)atoi(optarg_);
break;
case 'H':
h = (unsigned int)atoi(optarg_);
break;
case 'm':
method = atoi(optarg_);
break;
case 'h':
usage(argv[0], NULL, ipath, w, h, method);
return false;
break;
case 'c':
opt_click = false;
break;
case 'd':
opt_display = false;
break;
default:
usage(argv[0], optarg_, ipath, w, h, method);
return false;
break;
}
}
if ((c == 1) || (c == -1)) {
// standalone param or error
usage(argv[0], NULL, ipath, w, h, method);
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 ipath;
std::string filename;
unsigned int width = 101;
unsigned int height = 207;
int method = 0;
bool opt_display = true;
bool opt_click = true;
// 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, width, height, method, opt_display, opt_click) == false) {
exit(EXIT_FAILURE);
}
// 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()) {
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, width, height, method);
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(EXIT_FAILURE);
}
//
// Here starts really the test
//
for (int m = 0; m < 3; m++) {
std::cout << "Interpolation method: " << m << std::endl;
for (unsigned int cpt = 0; cpt < Itest.getSize(); cpt++) {
Itest.bitmap[cpt] = cpt;
}
vpImage<unsigned char> Itest_resize(Itest.getHeight() * 2, Itest.getWidth() * 2),
Itest_resize2(Itest.getHeight(), Itest.getWidth());
std::cout << "Itest:\n" << Itest << std::endl;
std::cout << "Itest_resize:\n" << Itest_resize << std::endl;
std::cout << "Itest_resize2:\n" << Itest_resize2 << std::endl;
std::cout << "(Itest ==Itest_resize2)? " << (Itest == Itest_resize2) << std::endl;
Itest.resize(4, 4);
for (unsigned int cpt = 0; cpt < Itest.getSize(); cpt++) {
Itest.bitmap[cpt] = cpt;
}
vpImageTools::resize(Itest, Itest_resize, Itest.getWidth() / 2, Itest.getHeight() / 2,
vpImageTools::resize(Itest_resize, Itest_resize2, Itest.getWidth(), Itest.getHeight(),
std::cout << "\nItest:\n" << Itest << std::endl;
std::cout << "Itest_resize:\n" << Itest_resize << std::endl;
std::cout << "Itest_resize2:\n" << Itest_resize2 << std::endl;
std::cout << "(Itest ==Itest_resize2)? " << (Itest == Itest_resize2) << std::endl << std::endl;
}
// Grayscale image
vpImage<unsigned char> I; // Input image
// Read the input grey image from the disk
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.pgm");
std::cout << "Read image: " << filename << std::endl;
vpImageIo::read(I, filename);
double t = vpTime::measureTimeMs();
vpImageTools::resize(I, I_resize, width, height, (vpImageTools::vpImageInterpolationType)method);
std::cout << "Time to resize from " << I.getWidth() << "x" << I.getHeight() << " to " << width << "x" << height
<< ": " << t << " ms" << std::endl;
#if defined(VISP_HAVE_X11)
vpDisplayX *d1 = new vpDisplayX, *d2 = new vpDisplayX;
#elif defined(VISP_HAVE_OPENCV)
#elif defined(VISP_HAVE_GTK)
vpDisplayGTK *d1 = new vpDisplayGTK, *d2 = new vpDisplayGTK;
#elif defined(VISP_HAVE_GDI)
vpDisplayGDI *d1 = new vpDisplayGDI, *d2 = new vpDisplayGDI;
#elif defined(VISP_HAVE_D3D9)
vpDisplayD3D *d1 = new vpDisplayD3D, *d2 = new vpDisplayD3D;
#else
std::cerr << "No display available!" << std::endl;
opt_display = false;
#endif
if (opt_display) {
#if defined(VISP_HAVE_X11) || defined(VISP_HAVE_OPENCV) || defined(VISP_HAVE_GTK) || defined(VISP_HAVE_GDI) || \
defined(VISP_HAVE_D3D9)
d1->init(I, 0, 0, "Grayscale image");
d2->init(I_resize, (int)I.getWidth() + 80, 0, "Grayscale image resized");
#endif
vpDisplay::display(I_resize);
vpDisplay::displayText(I_resize, 20, 20, "Click to continue.", vpColor::red);
vpDisplay::flush(I_resize);
if (opt_click) {
}
}
// Color image
vpImage<vpRGBa> I_color; // Input image
// Read the input grey image from the disk
filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.ppm");
std::cout << "\nRead image: " << filename << std::endl;
vpImageIo::read(I_color, filename);
vpImage<vpRGBa> I_color_resize;
vpImageTools::resize(I_color, I_color_resize, width, height, (vpImageTools::vpImageInterpolationType)method);
std::cout << "Time to resize from " << I_color.getWidth() << "x" << I_color.getHeight() << " to " << width << "x"
<< height << ": " << t << " ms" << std::endl;
#if defined(VISP_HAVE_X11)
vpDisplayX *d3 = new vpDisplayX, *d4 = new vpDisplayX;
#elif defined(VISP_HAVE_OPENCV)
#elif defined(VISP_HAVE_GTK)
vpDisplayGTK *d3 = new vpDisplayGTK, *d4 = new vpDisplayGTK;
#elif defined(VISP_HAVE_GDI)
vpDisplayGDI *d3 = new vpDisplayGDI, *d4 = new vpDisplayGDI;
#elif defined(VISP_HAVE_D3D9)
vpDisplayD3D *d3 = new vpDisplayD3D, *d4 = new vpDisplayD3D;
#else
std::cerr << "No display available!" << std::endl;
opt_display = false;
#endif
if (opt_display) {
#if defined(VISP_HAVE_X11) || defined(VISP_HAVE_OPENCV) || defined(VISP_HAVE_GTK) || defined(VISP_HAVE_GDI) || \
defined(VISP_HAVE_D3D9)
d3->init(I_color, 0, 0, "Color image");
d4->init(I_color_resize, (int)I_color.getWidth() + 80, 0, "Color image resized");
#endif
vpDisplay::display(I_color_resize);
vpDisplay::displayText(I_color_resize, 20, 20, "Click to quit.", vpColor::red);
vpDisplay::flush(I_color);
vpDisplay::flush(I_color_resize);
if (opt_click) {
vpDisplay::getClick(I_color_resize);
}
}
#if defined(VISP_HAVE_X11) || defined(VISP_HAVE_OPENCV) || defined(VISP_HAVE_GTK) || defined(VISP_HAVE_GDI) || \
defined(VISP_HAVE_D3D9)
delete d1;
delete d2;
delete d3;
delete d4;
#endif
vpImage<vpRGBa> I_color_double, I_color_double_half;
vpImageTools::resize(I_color, I_color_double, I_color.getWidth() * 2, I_color.getHeight() * 2,
vpImageTools::resize(I_color_double, I_color_double_half, I_color.getWidth(), I_color.getHeight(),
std::cout << "\n(I_color == I_color_double_half)? " << (I_color == I_color_double_half) << std::endl;
double root_mean_square_error = 0.0;
for (unsigned int i = 0; i < I_color.getHeight(); i++) {
for (unsigned int j = 0; j < I_color.getWidth(); j++) {
vpColVector c_error = I_color[i][j] - I_color_double_half[i][j];
root_mean_square_error += c_error.sumSquare();
}
}
std::cout << "Root Mean Square Error: " << sqrt(root_mean_square_error / (I_color.getSize() * 3)) << std::endl;
vpImage<vpRGBa> I_color_half, I_color_half_double;
vpImageTools::resize(I_color, I_color_half, I_color.getWidth() / 2, I_color.getHeight() / 2,
vpImageTools::resize(I_color_half, I_color_half_double, I_color.getWidth(), I_color.getHeight(),
std::cout << "\n(I_color == I_color_half_double)? " << (I_color == I_color_half_double) << std::endl;
root_mean_square_error = 0.0;
for (unsigned int i = 0; i < I_color.getHeight(); i++) {
for (unsigned int j = 0; j < I_color.getWidth(); j++) {
vpColVector c_error = I_color[i][j] - I_color_half_double[i][j];
root_mean_square_error += c_error.sumSquare();
}
}
std::cout << "Root Mean Square Error: " << sqrt(root_mean_square_error / (I_color.getSize() * 3)) << std::endl;
return EXIT_SUCCESS;
} catch (const vpException &e) {
std::cerr << "Catch an exception: " << e << std::endl;
return EXIT_FAILURE;
}
}