Re: Epson canned profiles
Re: Epson canned profiles
- Subject: Re: Epson canned profiles
- From: Graeme Gill <email@hidden>
- Date: Thu, 19 Apr 2018 12:12:15 +1000
ben wrote:
> Also...I've mused in this thread to the effect that a perfectly linear
> printer wouldn't
> need a LUT profile, that a matrix (or even shaper) would do the trick. Or, if
> you need
> LUT for software compatibility, you would only need the bare minimum number of
> patches.
Sounds unlikely. Ink mixing simply doesn't seem to translate into additive
light mixing.
Even a process as physically straight forward as a Chromalin proof (where each
color
has a separate dot layer on a transparent film) isn't really additive.
I guess it's because the path of light reflected from the surface is not simple
-
on average it interacts with multiple filtering elements in the substrate.
So even if each channel was device value -> linear light (something that would
be
pretty terrible for visually progressive control - displays have a gamma
characteristic
for a reason!), the channels won't mix additively.
Cheers,
Graeme Gill.
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