On 03/11/2010 06:23 PM, Alexandre Prokoudine wrote:
> On 3/10/10, Martin Nordholts wrote:
>>> How about editing in CMYK space, where higher numbers mean greater ink
>>> density? Perhaps this is why Photoshop has this 'flip' feature.
>> Good point, but in this case GIMP can do the necessary invert and flip
>> for the user
> How? :)

By knowing that it works on buffers with ink density and not light 
intensity. So how would GIMP know that? There are many heuristics that 
could be used:

* Was the buffer created with Decompose?
* Is guiguru's CMYK projection/curtain down?
* Is there a CMYK color profile attached somehow?
* What babl format is used?

  / Martin


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