test_opencv.cpp

//#include "opencv2/imgproc.hpp"
//#include "opencv2/highgui.hpp"
//#include <iostream>
//using namespace cv;
//using namespace std;
//Mat src, erosion_dst, dilation_dst;
//int erosion_elem = 0;
//int erosion_size = 0;
//int dilation_elem = 0;
//int dilation_size = 0;
//int const max_elem = 2;
//int const max_kernel_size = 21;
//void Erosion(int, void*);
//void Dilation(int, void*);
//int main(int argc, char** argv)
//{
//    CommandLineParser parser(argc, argv, "{@input | LinuxLogo.jpg | input image}");
//    src = imread(samples::findFile(parser.get<String>("@input")), IMREAD_COLOR);
//    if (src.empty())
//    {
//        cout << "Could not open or find the image!\n" << endl;
//        cout << "Usage: " << argv[0] << " <Input image>" << endl;
//        return -1;
//    }
//    namedWindow("Erosion Demo", WINDOW_AUTOSIZE);
//    namedWindow("Dilation Demo", WINDOW_AUTOSIZE);
//    moveWindow("Dilation Demo", src.cols, 0);
//    createTrackbar("Element:\n 0: Rect \n 1: Cross \n 2: Ellipse", "Erosion Demo",
//        &erosion_elem, max_elem,
//        Erosion);
//    createTrackbar("Kernel size:\n 2n +1", "Erosion Demo",
//        &erosion_size, max_kernel_size,
//        Erosion);
//    createTrackbar("Element:\n 0: Rect \n 1: Cross \n 2: Ellipse", "Dilation Demo",
//        &dilation_elem, max_elem,
//        Dilation);
//    createTrackbar("Kernel size:\n 2n +1", "Dilation Demo",
//        &dilation_size, max_kernel_size,
//        Dilation);
//    Erosion(0, 0);
//    Dilation(0, 0);
//    waitKey(0);
//    return 0;
//}
//void Erosion(int, void*)
//{
//    int erosion_type = 0;
//    if (erosion_elem == 0) { erosion_type = MORPH_RECT; }
//    else if (erosion_elem == 1) { erosion_type = MORPH_CROSS; }
//    else if (erosion_elem == 2) { erosion_type = MORPH_ELLIPSE; }
//    Mat element = getStructuringElement(erosion_type,
//        Size(2 * erosion_size + 1, 2 * erosion_size + 1),
//        Point(erosion_size, erosion_size));
//    erode(src, erosion_dst, element);
//    imshow("Erosion Demo", erosion_dst);
//}
//void Dilation(int, void*)
//{
//    int dilation_type = 0;
//    if (dilation_elem == 0) { dilation_type = MORPH_RECT; }
//    else if (dilation_elem == 1) { dilation_type = MORPH_CROSS; }
//    else if (dilation_elem == 2) { dilation_type = MORPH_ELLIPSE; }
//    Mat element = getStructuringElement(dilation_type,
//        Size(2 * dilation_size + 1, 2 * dilation_size + 1),
//        Point(dilation_size, dilation_size));
//    dilate(src, dilation_dst, element);
//    imshow("Dilation Demo", dilation_dst);
//}