I would like to know if it is possible to keep only coloured parts (for example red eyes) from a b/w image, removing all the other parts not coloured (i.e. in grayscale or black and white).
I was thinking of
RemoveBackground or in using
mask=DeleteSmallComponents@ ColorNegate@DeleteSmallComponents@MorphologicalBinarize[img, ...], DiskMatrix[...]
but it removes also the coloured parts.. Any suggestions?
Thank you for your time. I really appreciate your help. Please find below an example of picture.