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//! \example tutorial-bridge-opencv-image.cpp
#include <iostream>
#include <visp3/core/vpImageConvert.h>
#include <visp3/io/vpImageIo.h>
#if defined(VISP_HAVE_OPENCV) && defined(HAVE_OPENCV_IMGPROC) && defined(HAVE_OPENCV_IMGCODECS)
#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/imgcodecs/imgcodecs.hpp>
int main()
{
// From ViSP to OpenCV conversion
{
//! [Load ViSP color image]
vpImage<vpRGBa> Irgba;
vpImageIo::read(Irgba, "monkey.jpeg");
//! [Load ViSP color image]
//! [Load ViSP grey image]
vpImage<unsigned char> Igrey;
vpImageIo::read(Igrey, "monkey.jpeg");
//! [Load ViSP grey image]
//! [Convert to OpenCV color image]
cv::Mat cv_img_color;
vpImageConvert::convert(Irgba, cv_img_color);
//! [Convert to OpenCV color image]
//! [Convert to OpenCV grey image]
cv::Mat cv_img_grey;
vpImageConvert::convert(Igrey, cv_img_grey);
//! [Convert to OpenCV grey image]
std::cout << "Save converted images from vpImage to cv::Mat" << std::endl;
std::cout << "- monkey-cv-color.jpeg" << std::endl;
std::cout << "- monkey-cv-grey.jpeg" << std::endl;
//! [Save OpenCV color image]
cv::imwrite("monkey-cv-color.jpeg", cv_img_color);
//! [Save OpenCV color image]
//! [Save OpenCV grey image]
cv::imwrite("monkey-cv-grey.jpeg", cv_img_grey);
//! [Save OpenCV grey image]
}
// From OpenCV to ViSP conversion
{
//! [Load OpenCV color image]
#if VISP_HAVE_OPENCV_VERSION >= 0x030000
cv::Mat cv_img_color = cv::imread("monkey.jpeg", cv::IMREAD_COLOR);
#else
cv::Mat cv_img_color = cv::imread("monkey.jpeg", CV_LOAD_IMAGE_COLOR);
#endif
//! [Load OpenCV color image]
//! [Convert to ViSP color image]
vpImage<vpRGBa> Irgba;
vpImageConvert::convert(cv_img_color, Irgba);
//! [Convert to ViSP color image]
//! [Load OpenCV grey image]
#if VISP_HAVE_OPENCV_VERSION >= 0x030000
cv::Mat cv_img_grey = cv::imread("monkey.jpeg", cv::IMREAD_GRAYSCALE);
#else
cv::Mat cv_img_grey = cv::imread("monkey.jpeg", CV_LOAD_IMAGE_GRAYSCALE);
#endif
//! [Load OpenCV grey image]
//! [Convert to ViSP grey image]
vpImage<unsigned char> Igrey;
vpImageConvert::convert(cv_img_grey, Igrey);
//! [Convert to ViSP grey image]
std::cout << "Save converted images from cv::Mat to vpImage" << std::endl;
std::cout << "- monkey-vp-color.jpeg" << std::endl;
std::cout << "- monkey-vp-grey.jpeg" << std::endl;
//! [Save ViSP color image]
vpImageIo::write(Irgba, "monkey-vp-color.jpeg");
//! [Save ViSP color image]
//! [Save ViSP grey image]
vpImageIo::write(Igrey, "monkey-vp-grey.jpeg");
//! [Save ViSP grey image]
}
}
#else
int main()
{
std::cout << "This tutorial required OpenCV imgproc and imgcodecs modules." << std::endl;
return EXIT_SUCCESS;
}
#endif
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