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Home/ Questions/Q 8089731
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Editorial Team
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Editorial Team
Asked: June 5, 20262026-06-05T19:29:46+00:00 2026-06-05T19:29:46+00:00

I have a couple of images in Mat objects all with same dimensions I’d

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I have a couple of images in Mat objects all with same dimensions
I’d like to create one bix cv::Mat object to hold them all

So the dimension of the new matrix is: widthNew = widthOld x number of matrices, height remains unchanged.

I found that such a copy could be done using:

void cvCopy(const CvArr* src, CvArr* dst, const CvArr* mask=NULL)

but then, how could the mask be defined three different times for the three matrices?.

Regards,
Moataz

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  1. Editorial Team
    Editorial Team
    2026-06-05T19:29:48+00:00Added an answer on June 5, 2026 at 7:29 pm

    You use an roi to define an image which is actually a region of the destination image and then copy to that. see Copy an cv::Mat inside a ROI of another one

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