table resolution vs smoothness
table resolution vs smoothness
- Subject: table resolution vs smoothness
- From: Roberto Michelena <email@hidden>
- Date: Mon, 25 Nov 2002 21:07:10 -0500
Something has bugged me for years, and continues to do so.
Many profiling software developers say or imply in their documentation, that
there's a tradeoff between "color accuracy" and "smoothness (banding)"; if
you use a lot of patches and build a large number of gridpoints in the
profile, you get better numerical color accuracy but more noticeable banding
in smooth gradients. While if you build with few patches, you get smoother
images but less accurate.
That situation is terribly broken; if your original image (to be proofed)
has no banding in its final form (ie offset print), a "color accurate" proof
should't have any banding either. Unless "color accurate" from a numerical
model point of view, is not meaning "color accurate" from a human perception
point of view.
And unfortunately, the abovementioned warnings from manufacturers test true
in reality, which to my understanding can only mean our color appearance
model is terribly broken. Lab and XYZ have ripples, so to say.
So when are we getting rid of those flawed spaces and replace them by
something that really represents human vision?
Yeah, I know, don't worry ... Just had to get that off my chest [again].
Best,
-- Roberto Michelena
EOS S.A.
Lima, Peru
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