堆损坏错误; 无法释放cv :: Mat opencv

Question

这段代码工作正常,直到最后一行.它将正确的图像保存在磁盘上但在退出函数后显示"内存泄漏" - 堆损坏.我读过Mat不需要明确发布.在我的情况下,它会在释放和w/o释放时崩溃.请帮忙.

void CannyEdgeDetectionFilter::applyFilter(Mat& mat, Mat& mixedBandsMat)
{
    //Mat mixedBandsMat;

    vector<Mat> bandWiseImages;
    split(mat, bandWiseImages);

    //! Evaluate numChannels to be filtered in the input image
    int numChannels = mat.channels();
    int type = mat.type();

    //! Multiplied by 8 to get bits from Bytes
    int singleChannelDepth = 8*mat.elemSize1();

    for (int i = 0; i < numChannels; i++)
    {
        Canny(bandWiseImages[i], bandWiseImages[i], m_LowerThreshold,
            m_UpperThreshold, m_Kernel.rows);
    }

    //! Creating filteredImgMat in order to set DataValues
    mixedBandsMat.create(mat.rows, mat.cols, mat.type());

    //! Unifying the channels back to the output image
    merge(bandWiseImages, mixedBandsMat);
#if 1
    //Release bandWiseImages Mat memory
    int bandWiseVecSize = bandWiseImages.size();
    for(int i = 0; i < bandWiseVecSize; i++)
        bandWiseImages[i].release();
    bandWiseImages.clear();
    //fromTo.clear();
#endif
    imwrite("D:\\testAfterCannyEdgeDetetionFilter.jpg", mixedBandsMat);
    mixedBandsMat.release();
}

Answer 1

有了这些小信息，我只能给你一些支持，但没有真正的解决方案：

1.)我猜你使用的是Win7。所以请访问Dr. Memory并安装它（将路径添加到系统变量中）。然后您可以使用以下命令启动应用程序：drmemory.exe -no_follow_children C:\\the_path\\YourExecutable.exe argv[1] ... argv[n]。-no_follow_children 用于忽略其他第三方代码。运行此命令。Dr. Memory 会将结果写入C:\Users\NAMEHERE\AppData\Roaming\Dr. Memory\。看看吧，也许你现在有了提示。如果没有 -> 将其发布在这里。=)

2.)当您在没有压缩参数的情况下写入图像时，OpenCV 有时会崩溃。我已经经历过一段时间了，所以我总是给 imwrite 函数提供一个 int 参数向量：

vector<int> crparam;
crparam.push_back(CV_IMWRITE_PNG_COMPRESSION);
cv::imwrite("D:\\testAfterCannyEdgeDetetionFilter.png", mixedBandsMat, crparam);