I want to reproduce the quality to scan of an APP, that app get images like this one: RGB image and produce good results, like this: image procesed. I have already used adaptiveThreshold, adaptative_thresholding, otsu filter, etc, but they all just throw me in binary. I do not get the effect of removing noise from paper and obtaining the lines of the image in gray scale. Any idea about to solve this problem?
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any comment about it? – Kintaro Oe Apr 25 '20 at 02:13
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Here’s something that could help: https://stackoverflow.com/questions/42257173/contrast-stretching-in-python-opencv – Cerovec Apr 26 '20 at 20:43