System Information

OpenCV version: 4.7.0
Operating System / Platform: windows 10
Compiler & compiler version: visual studio 2019

Detailed description

When the matchTemplate function is used with a mask, the data of the mask changes and it is no longer usable.
mask is an InputArray and should not change, it should be read only.

Steps to reproduce

    Mat src = Mat(1, 1, CV_8UC1, Scalar(255));
    Mat templ = Mat(1, 1, CV_8UC1, Scalar(255));
    Mat mask1 = Mat(1, 1, CV_8UC1, Scalar(255));
    printf("before %d\n", mask1.at<uchar>(0, 0));
    Mat res;
    matchTemplate(src, templ, res, TemplateMatchModes::TM_CCOEFF_NORMED, mask1);
    printf("after  %d\n", mask1.at<uchar>(0, 0));

Output:

before 255
after  1

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)