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c++opencvcopyroi

Copy an cv::Mat inside a ROI of another one

I need to copy a cv::Mat image (source) to an ROI of another (Destination) cv::Mat image.

I found this reference, but it seems that it does not work for my case. Do you have any pointers how could I do this using the OpenCV C++ interface?

Solution

  • OpenCV 2.4:

    src.copyTo(dst(Rect(left, top, src.cols, src.rows)));

    OpenCV 2.x:

    Mat dst_roi = dst(Rect(left, top, src.cols, src.rows));
src.copyTo(dst_roi);