hi all. i'm having difficulty selectively applying CI filters to
areas of a frame.
for example, if i make some noise via a random generator, i'd like to
be able to blur this noise using a ramp to control the blur intensity.
also, it would be nice if there were some included patches for working
with the individual channels of an image. like if i wanted to copy
the alpha channel from one image to another, similar to shake's keymix
or reorder nodes. i guess i'll be playing with image kernels :)
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