LearningMachine.exe中0x0FD98EF2（opencv_imgproc248d.dll）的未处理异常：0xC0000005：访问冲突读取位置0xFFFFFFFF

Question

这是我使用的代码：

string path = "C:\\Users\\Me\\Desktop\\private\\MachinLearning";

boost::filesystem::directory_iterator iterator(path);
Mat imgIter;

for (; iterator != boost::filesystem::directory_iterator(); ++iterator)
{
    string file_name = path;
    file_name.append(iterator->path().filename().string());
    imgIter = cv::imread(file_name, CV_LOAD_IMAGE_GRAYSCALE);

    Mat scalled_img(75, 135, imgIter.type(), cv::Scalar(0.0f, 0.0f, 0.0f));
    cv::resize(imgIter, scalled_img, scalled_img.size());

}

我不确定我做错了什么。