Compare ROI
Hello, I need suggestions. I would like to compare the region in blue, people who have red cheeks and people who do not. I do not have a large database to use deep learning.
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what exactly is your question here ?
you probably need to sample mean/stddev from those regions (maybe in hsv color space), and find a threshold for red / not so red.
and this WILL need data (the more, the better), what did you expect ?
Seems like a classification pipeline, that can be solved by applying transfer learning on an existing classification CNN, or at least the classification part of a detection network.