[cairo] alpha blending
spitzak at gmail.com
Wed Mar 25 13:53:43 PDT 2015
On 03/25/2015 12:34 PM, Lawrence D'Oliveiro wrote:
> On Wed, 25 Mar 2015 12:18:47 -0700, Bill Spitzak wrote:
>> That simulate gamma-corrected compositing (in this case a 50% blend).
> Isn’t colour management supposed to solve all that? So that we can do
> all our image processing in a linear colour space.
There could be a switch that says "composite in linear space" and uses
colour management to convert between the images and linear.
However that is going to be vastly slow and complex, and annoying to
programs that want to replicate results locally. And the only
interesting color space is gamma 2.2, so a much faster and simpler
version of turning only the simulation of this space on/off would be
much easier, and probably more friendly to software that wants to
predict the results.
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