QT QImage to cv::Mat conversion causing memory leak

[sigmind]

I have a QPixmap which I want to convert to cv::Mat. First I've converted it to QImage.

QPixmap picture;
QImage image = picture.toImage();

Then the QImage is sent to the conversion function. But this function is causing memory leak.

cv::Mat QImage2Mat(const QImage& src) {
    cv::Mat mat = cv::Mat(src.height(), src.width(), CV_8UC4, (uchar*)src.bits(), src.bytesPerLine());
    cv::Mat result = cv::Mat(mat.rows, mat.cols, CV_8UC3 );
    int from_to[] = { 0,0,  1,1,  2,2 };
    cv::mixChannels( &mat, 1, &result, 1, from_to, 3 );
    return result;
}

cv::Mat matImage  = QImage2Mat(image);

[Pablo J. Rogina]

@sigmind just in case you may want to take a look at this post

[SGaist]

Hi,

What makes you think there's a memory leak ?