I have a stereo image pair of say 100x100 resolution. I did calibration and I am able to rectify it properly and calculate disparity for the same. Now I have the cropped image of size 50x50 with ROI based on center. If I have to use the same calibration matrices, what should I do? Rescaling the principle point in camera matrix is enough or do we need to do anything else?
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Madhu Soodhan
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Just zero pad the images to a make them 100*100. If the ROI is from center, zero pad all 4 borders equally to put 50*50 image in the center. – MeiH Jan 04 '20 at 14:21