[argyllcms] Re: how many patches, profiling Epson printers

Gerhard Fuernkranz wrote:

Argyll currently assumes an illuminant A light source for virtually all
instruments, which is probably a reasonable approximation for instruments
with tungsten lamps, but which if of course not correct, if an UV filter is
used, or if e.g. a Spectrolino is equipped with a D65 filter. Graeme was
also so kind to add on my request Spectrocam's Xenon flash spectrum to
spectro/inst.c and xicc/xspect.c, which can be selected for FWA compensation
by setting TARGET_INSTRUMENT to "Spectrocam" in the .ti3 file.


The FWA compensation can't work if you have a UV filter fitted, since
it relies on some UV from the instrument illuminant, to estimate the
response of the FWA in the paper.

Graeme Gill.

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