Yeah, i got that far as well, but the problem is it won't take an area average output. Like this.. If you check the .qtz you notice there is no output when the image comes from area average.
I guess it's not that simple:
You need to have a red patch consuming the image pixel output before it will evaluate anything. As-is, it'll never show anything for any input, ever, because it's never getting executed. Attaching a consumer fixes that (a sprite, or whatever).
_HOWEVER_:Don't forget to factor in Alpha -- with text images, the black regions are actually transparent so the resultant color is extremely dark (and mostly transparent). This composition has blending set to help illustrate this a bit (as well as some demos of other image types, and how they behave in this setup).
ImagePixel Tests.qtz
Description: application/quartzcomposer
-- [ christopher wright ] [email protected] http://kineme.net/
smime.p7s
Description: S/MIME cryptographic signature
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