isolate a single color in a matrix?


    Oct 16 2008 | 3:47 am
    Hey all,
    I am trying to make a sort of extended exposure effect but with live video and I want to try and isolate a single color within a maximum lumination (so that only bright LED lights come in, in somewhat natural lighting conditions otherwise) Here is what I have so far..someone helped me slog through working with jit.expr but it doesn't quite work..some red things show through when i select blue only for example..any tips would be appreciated..I'm also having issues doing the succinct text patch posts..but here it is:
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    • Oct 16 2008 | 2:31 pm
      Hi Laserpilot,
      Are you talking about something like this?
      Also, please try to use the compressed format when posting patches. select all in patch ---> go to edit ---> select copy compressed.
      best, Zachary
    • Oct 16 2008 | 2:59 pm
      yess..that works a bit better..it looks like i still have to pretty much crank everything to be the brightest bright so i lose a lot of color info, but i think this makes a little more sense to me than jit.expr..thanks!
    • Oct 26 2008 | 12:24 am
      after playing around with jit.charmap a bit it seems like it may be a better solution to isolating colors..however I'm trying to figure out a better (ie simpler) way to create the color map than whats in the jit.charmap help file. Would swatch be usable for this? Just to output a small gradient/single color but have the rest of the 254 values be black?