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  1. #include <opencv2/imgcodecs.hpp>
  2. #include <opencv2/highgui.hpp>
  3. #include <iostream>
  4. #include <opencv2/imgproc/imgproc.hpp>
  5.  
  6. using namespace cv;
  7. using namespace std;
  8.  
  9.  
  10. int main(int argc, char** argv) {
  11.     std::string fileName("testImage.jpg");
  12.  
  13.     if (argc > 1) {
  14.         fileName = argv[1];
  15.     }
  16.  
  17.     Mat image = imread(fileName, cv::IMREAD_COLOR);
  18.  
  19.     Mat grey_image, tresh, canny_output, contours, drawing;
  20.  
  21.     if (image.empty()) {
  22.         std::cout << "Could not find or open the image." << std::endl;
  23.         exit(-1);
  24.     }
  25.     else
  26.     {
  27.         //oryginal
  28.         imshow("Oryginal image", image);
  29.  
  30.         //greay
  31.         cv::cvtColor(image, grey_image, CV_BGR2GRAY);
  32.         imshow("GreyScale image", grey_image);
  33.  
  34.         //treshold
  35.         int threshold_value = 150;
  36.         int threshold_type = 3;
  37.         int const max_value = 255;
  38.         int const max_BINARY_value = 255;
  39.         threshold(grey_image, tresh, threshold_value, max_BINARY_value, threshold_type);
  40.         imshow("Treshholding", tresh);
  41.  
  42.         //EDGES
  43.         Canny(grey_image, canny_output, 100, 200, 3);
  44.         imshow("Canny Edges", canny_output);   
  45.     }
  46.  
  47.    
  48.     cv::waitKey(0);
  49.  
  50.     return 0;
  51. }
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