Am 20.01.10, 10:56 -0600 schrieb Bob Friesenhahn:
> On Wed, 20 Jan 2010, Richard Hughes wrote:
>> Is there any planned support for pre-multiplied image formats in lcms2?
>> Thanks.
>
> Color management has nothing to do with an alpha channel. Lcms may
> accept (and preserve) an existing alpha cha
On Wed, 20 Jan 2010, Richard Hughes wrote:
> Is there any planned support for pre-multiplied image formats in lcms2?
> Thanks.
Color management has nothing to do with an alpha channel. Lcms may
accept (and preserve) an existing alpha channel as a means of
convenience. What you are requesting
As you might know, cairo uses a ARGB pre-multiplied format for storing
surfaces. That is to say, that the A,R,G,B values have been
pre-multiplied by the alpha channel, so become A,RA,GA,BA.
In GTK (where we're hopefully soon to be using lcms) I'm having to
un-premultiply the cairo surface before s
