读取文件夹下所有图像.jpg
string file_path =
"H:\\图像处理模板\\c++\\CmakeBuildOpenCVPrj\\Pic\\PillingImages\\Simple_Color_Images\\SC1\\Grades_three\\";
/*"H:\\图像处理模板\\c++\\CmakeBuildOpenCVPrj\\Pic\\Test\\";*/
string search_path = file_path + "*.jpg";
vector<cv::String> file_list;
vector<Mat> images;
glob(search_path, file_list, false);
Mat src;
for (size_t i = 0; i < file_list.size(); i++)
{
string imageFilePath = file_list[i];
src = cv::imread(imageFilePath);
}