Allow scanning codes that are color inverted #420
Merged
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I used inverted luminance for all even frames to handle the case that the code being scanned is color inverted. For production, that should be made as an option, sorry I didn't walk through the entire library to learn how to do it.
P.S. I duplicated the loop for converting pixels, because I think that hurts performance a bit if the odd-even branching is made for every pixel. Not sure of that, I am not a TS guy. :) This is the first time for me to write TS code.