CODEWITHSUNDEEP
c++opencv
Junaid
Junaid

Reputation: 1004

Mat::copyTo() function error

I am trying to copy a smaller image at the center of a bigger image. Here is the code:

src.copyTo(dest(Rect(50,50,src.cols,src.rows)));

where both src and dest are Mats, dest is 5 times bigger than src and assuming 50,50 to be the center of dest.

I am getting the following errors:

no matching function for call to 'cv::Mat::copyTo(cv::Mat)'

Any fixes?

Upvotes: 1

Views: 1390

Answers (1)

Яois
Яois

Reputation: 3858

Try constructing your destination Mat after calling copyTo:

Mat roi = dest(Rect(50,50,src.cols,src.rows));
src.copyTo(roi);

This should work. copyTo accepts one OutputArray as a parameter. The proxy classes InputArray and OutputArray are defined as const references, hence the error. http://docs.opencv.org/modules/core/doc/basic_structures.html?highlight=copyto#inputarray

Upvotes: 1

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