How to use gpu.copyTo on the python side

Python
1

I want to use gpu’s copyTo in python, but there is no Rect class on the python side, which makes it impossible to capture an area from the original image.

2

You can use a combination of rowRange and colRange, e.g.

>>> src = cv2.cuda.GpuMat(10,10,cv2.CV_8UC1)
>>> src_roi = src.rowRange(5,7).colRange(5,7)
>>> src_roi.setTo(100);
>>> sm = cv2.cuda.GpuMat(2,2,cv2.CV_8UC1)
>>> src_roi.copyTo(sm);
>>> sm.download()
array([[100, 100],
       [100, 100]], dtype=uint8)