Re: [ECI-EN] L*, ECI-RGB v2, TRC of print output
26 Feb
2008
26 Feb
'08
12:49 p.m.
Hello Chris,
Could You please refer to a source, which state, that the FOGRA, GRACoL,
SWOP, IFRA reference printing conditions have a TRC close to Gamma 1,8 ?
I´m especially interested on a formula to calculate the nearest "Gamma"
from print characterization-data which refers to ISO standards and CIE
research.
Regards
Jan-Peter
Chris Murphy wrote:
The TRC of print and publishing industries are still close to that of
a curve defined by a gamma 1.8 function. Not L*. That's the current
reality of how print publishing actually behaves. Re-mapping from an
L* TRC to that of a typical print TRC results in more loss, than had
we mapped to an intermediate space that has a TRC close to typical
print TRC, that being one defined by gamma 1.8.
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