i found a blog from 2010
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IMAGE MANIPULATION
Finally, the alterations to the image (gamma, white and black point, red/green/blue channels) are
performed using pixel-level bitmap manipulation features that we haven’t publicly exposed yet. Our current plan is to unveil these features as part of the upcoming 1.2 release, once we have a
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are there any news yet?? quiet old info 
i just would need right now to ‘desaturate’ an image. doesn’t need high speed as its just at the beginning from a screen and than will stay
thx
chris
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