Considering I have the coordinates already of the area of the image I want to do image processing on. It was already explained here using Rect but how do you do this on python OpenCV 3?
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From the link you gave, it seems you don't want the output in a different image variable, given that you know the coordinates of the region you want to process. I'll assume your image processing function to be cv2.blur() so this is how it'll be:
image[y:y+height, w:w+width] = cv2.blur(image[y:y+height, w:w+width], (11,11))
Here, x & y are your ROI starting co-ordinates, and height & width are the height, width of the ROI
Hope this is what you wanted, or if it's anything different, provide more details in your question.
Akash Jobanputra
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It would be very useful if you would provide more details and maybe some code you've tried.
From my understanding, you want to do image processing on a region of an image array only. You can do something like
foo(im[i1:i2, j1:j2, :])
Where foo is your image processing function.
Sandeep Dcunha
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