[argyllcms] Firefox qcms vs. lcms 2.0 vs. Argyll imdi
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Fri, 12 Nov 2010 11:20:02 +1100
At a hint from Marti that he has added a special case for matrix
only profiles, I've repeated the benchmark using lcms V2.0.
Matrix profiles:
lcms 73
argyll 65
qcms 32
cLUT profiles:
lcms 357
argyll 69
qcms n/a
So for the special case that only qcms supports, lcms V2 is just as fast as
Argyll,
and a factor of 2 slower than qcms. Whether this is significant in practice for
use in a browser probably depends more on whether color management is
being applied efficiently, or whether it is being applied badly
(Consider: even a large display only has around 4 Million pixels, so
repainting the whole screen should take about 15msec's worth of color
transformation.)
Graeme Gill.
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