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I want to check if the returned value read from a gray level image ( 0-255) image is a graylevel and not a color. I paint blob objects red with threshold filter and i want to skip over that red part. SO... if img.pixels[loc] >> 8 & 0xFF is not a color then ... Can i check the result for between 0,0,0 - 255,255,255 grayscale only , so a color of 0,255,0 would not be true?
still trying to understand what the color values return and how to decipher them thanks