将cv :: Mat复制到另一个ROI的ROI内 [英] Copy an cv::Mat inside a ROI of another one

问题描述

我需要将 cv :: Mat 图像（源）复制到另一个（目标） cv :: Mat image。

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

我发现此引用，但它似乎并不适用于我的情况。

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?

推荐答案

OpenCV 2.4：

OpenCV 2.4:

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

OpenCV 2.x：

OpenCV 2.x:

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

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