UMatのサンプルプログラム

umat_sample.cpp

#include <iostream>

#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>

#ifndef _DEBUG
#pragma comment(lib,"opencv_core300.lib")
#pragma comment(lib,"opencv_imgproc300.lib")
#pragma comment(lib,"opencv_highgui300.lib")
#else
#pragma comment(lib,"opencv_core300d.lib")
#pragma comment(lib,"opencv_imgproc300d.lib")
#pragma comment(lib,"opencv_highgui300d.lib")
#endif

using namespace std;
using namespace cv;

int main(int argc, const char * argv[])
{
    Mat img   = imread("lena.jpg", IMREAD_UNCHANGED);
    UMat uimg = img.getUMat(ACCESS_READ), ugray;

    cvtColor(uimg, ugray, COLOR_BGR2GRAY);

    namedWindow("UMat");
    imshow("UMat", ugray);
    waitKey(0);
    destroyAllWindows();

    return 0;
}