c_cpp 检查图像是否不存在或无法使用OpenCV在C ++中打开。

Posted 2021-05-14

  img_path = argv[1];
  std::cout << "img_path: " << img_path << std::endl;
  // load the image here.
  image = cv::imread(img_path);
  if (image.empty()) {
    std::cout << "Can not open the image! Please check the path of the input "
        "image." << std::endl;
    return -1;
  }