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3rdparty/opencv-4.5.4/modules/gapi/samples/slides_sobel_cv.cpp 544 Bytes
f4334277   Hu Chunming   提交3rdparty
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  #include <opencv2/videoio.hpp>
  #include <opencv2/highgui.hpp>
  #include <opencv2/gapi.hpp>
  #include <opencv2/gapi/core.hpp>
  #include <opencv2/gapi/imgproc.hpp>
  
  int main(int argc, char *argv[])
  {
      (void) argc;
      (void) argv;
  
      using namespace cv;
      Mat in_mat = imread("lena.png");
      Mat gx, gy;
  
      Sobel(in_mat, gx, CV_32F, 1, 0);
      Sobel(in_mat, gy, CV_32F, 0, 1);
  
      Mat mag;
      sqrt(gx.mul(gx) + gy.mul(gy), mag);
  
      Mat out_mat;
      mag.convertTo(out_mat, CV_8U);
  
      imwrite("lena-out.png", out_mat);
      return 0;
  }