On Thu, 2010-03-11 at 18:40 +0100, Martin Nordholts wrote:
> 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?

It's common to decompose even to cmyk (especially when working
with scanned images) and this does not mean that "curves"
should suddenly behave differently, and neither does it mean
that one is working with "ink".  E.g. I sometimes do this to
compensate for registration problems that happened when the
image was printed 100 years ago, e.g. by moving the Y layer.
(I could really do with a View filter that showed the recomposed
result, or maybe a layer mode, so that with all layers shown I
got the proper colour appearance)

Either curve-ui-inversion should be under user control with a flip
button, or not happen, I think.  Curves going backwards when I
switch windows isn't a nice concept.


Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
Pictures from old books: http://fromoldbooks.org/
Ankh: irc.sorcery.net irc.gnome.org www.advogato.org

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