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//! \example tutorial-contrast-sharpening.cpp
#include <cstdlib>
#include <iostream>
#include <visp3/core/vpConfig.h>
#include <visp3/core/vpImage.h>
#include <visp3/gui/vpDisplayFactory.h>
#include <visp3/io/vpImageIo.h>
#if defined(VISP_HAVE_MODULE_IMGPROC)
//! [Include]
#include <visp3/imgproc/vpImgproc.h>
//! [Include]
#endif
int main(int argc, const char **argv)
{
//! [Macro defined]
#if defined(VISP_HAVE_MODULE_IMGPROC) && defined(VISP_HAVE_DISPLAY)
//! [Macro defined]
//!
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
std::string input_filename = "Crayfish-low-contrast.png";
int blockRadius = 150;
int bins = 256;
float slope = 3.0f;
float sigma = 2.0f;
double weight = 0.5;
for (int i = 1; i < argc; i++) {
if (std::string(argv[i]) == "--input" && i + 1 < argc) {
input_filename = std::string(argv[++i]);
}
else if (std::string(argv[i]) == "--blockRadius" && i + 1 < argc) {
blockRadius = atoi(argv[++i]);
}
else if (std::string(argv[i]) == "--bins" && i + 1 < argc) {
bins = atoi(argv[++i]);
}
else if (std::string(argv[i]) == "--slope" && i + 1 < argc) {
slope = static_cast<float>(atof(argv[++i]));
}
else if (std::string(argv[i]) == "--sigma" && i + 1 < argc) {
sigma = static_cast<float>(atof(argv[++i]));
}
else if (std::string(argv[i]) == "--weight" && i + 1 < argc) {
weight = atof(argv[++i]);
}
else if (std::string(argv[i]) == "--help" || std::string(argv[i]) == "-h") {
std::cout << "Usage: " << argv[0]
<< " [--input <input image>]"
" [--blockRadius <block radius for CLAHE>] "
" [--bins <nb histogram bins for CLAHE>] [--slope <slope for CLAHE>]"
" [--sigma <Gaussian kernel standard deviation>] [--weight <unsharp mask weighting>]"
" [--help] [-h]"
<< std::endl;
return EXIT_SUCCESS;
}
}
//! [Read]
vpImage<vpRGBa> I_color;
vpImageIo::read(I_color, input_filename);
//! [Read]
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
std::shared_ptr<vpDisplay> display = vpDisplayFactory::createDisplay(I_color, 0, 0, "Input color image");
#else
vpDisplay *display = vpDisplayFactory::allocateDisplay(I_color, 0, 0, "Input color image");
#endif
//! [Stretch contrast]
vpImage<vpRGBa> I_stretch;
VISP_NAMESPACE_NAME::stretchContrast(I_color, I_stretch);
//! [Stretch contrast]
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
std::shared_ptr<vpDisplay> display2 = vpDisplayFactory::createDisplay(I_stretch, I_color.getWidth(), 10, "Stretch contrast");
#else
vpDisplay *display2 = vpDisplayFactory::allocateDisplay(I_stretch, I_color.getWidth(), 10, "Stretch contrast");
#endif
//! [Stretch contrast HSV]
vpImage<vpRGBa> I_stretch_hsv;
VISP_NAMESPACE_NAME::stretchContrastHSV(I_color, I_stretch_hsv);
//! [Stretch contrast HSV]
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
std::shared_ptr<vpDisplay> display3 = vpDisplayFactory::createDisplay(I_stretch_hsv, 0, I_color.getHeight() + 80, "Stretch contrast HSV");
#else
vpDisplay *display3 = vpDisplayFactory::allocateDisplay(I_stretch_hsv, 0, I_color.getHeight() + 80, "Stretch contrast HSV");
#endif
//! [Histogram equalization]
vpImage<vpRGBa> I_hist_eq;
VISP_NAMESPACE_NAME::equalizeHistogram(I_color, I_hist_eq);
//! [Histogram equalization]
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
std::shared_ptr<vpDisplay> display4 = vpDisplayFactory::createDisplay(I_hist_eq, I_color.getWidth(), I_color.getHeight() + 80, "Histogram equalization");
#else
vpDisplay *display4 = vpDisplayFactory::allocateDisplay(I_hist_eq, I_color.getWidth(), I_color.getHeight() + 80, "Histogram equalization");
#endif
//! [CLAHE]
vpImage<vpRGBa> I_clahe;
VISP_NAMESPACE_NAME::clahe(I_color, I_clahe, blockRadius, bins, slope);
//! [CLAHE]
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
std::shared_ptr<vpDisplay> display5 = vpDisplayFactory::createDisplay(I_clahe, 0, 2 * I_color.getHeight() + 80, "CLAHE");
#else
vpDisplay *display5 = vpDisplayFactory::allocateDisplay(I_clahe, 0, 2 * I_color.getHeight() + 80, "CLAHE");
#endif
//! [Unsharp mask]
vpImage<vpRGBa> I_unsharp;
VISP_NAMESPACE_NAME::unsharpMask(I_clahe, I_unsharp, sigma, weight);
//! [Unsharp mask]
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
std::shared_ptr<vpDisplay> display6 = vpDisplayFactory::createDisplay(I_unsharp, I_color.getWidth(), 2 * I_color.getHeight() + 80, "Unsharp mask");
#else
vpDisplay *display6 = vpDisplayFactory::allocateDisplay(I_unsharp, I_color.getWidth(), 2 * I_color.getHeight() + 80, "Unsharp mask");
#endif
vpDisplay::display(I_color);
vpDisplay::display(I_stretch);
vpDisplay::display(I_stretch_hsv);
vpDisplay::display(I_hist_eq);
vpDisplay::display(I_clahe);
vpDisplay::display(I_unsharp);
vpDisplay::displayText(I_unsharp, 20, 20, "Click to quit.", vpColor::red);
vpDisplay::flush(I_color);
vpDisplay::flush(I_stretch);
vpDisplay::flush(I_stretch_hsv);
vpDisplay::flush(I_hist_eq);
vpDisplay::flush(I_clahe);
vpDisplay::flush(I_unsharp);
vpDisplay::getClick(I_unsharp);
#if (VISP_CXX_STANDARD < VISP_CXX_STANDARD_11) && defined(VISP_HAVE_DISPLAY)
if (display != nullptr) {
delete display;
}
if (display2 != nullptr) {
delete display2;
}
if (display3 != nullptr) {
delete display3;
}
if (display4 != nullptr) {
delete display4;
}
if (display5 != nullptr) {
delete display5;
}
if (display6 != nullptr) {
delete display6;
}
#endif
#else
(void)argc;
(void)argv;
#endif
return EXIT_SUCCESS;
}
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