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Showing results for tags 'color detection'.
I could use a bit of math help. What I'd like to do is sample a 5x5 pixel area with PixelChecksum. I would then sample again a few seconds later to check for a change as seems to be the normal usage. Can I do any useful maths on the PixelChecksum results? For instance, if I subtracted the two sample values would it tell me anything about pixel color content? Might I know that a color shift has happened to maybe Blue or Red for instance? Or would I have to do that on a per pixel sample? And if that is the case... what math would i use to compare an RGB value against another to detect