Re: CMYK spaces used for document creation
Re: CMYK spaces used for document creation
- Subject: Re: CMYK spaces used for document creation
- From: Martin Orpen <email@hidden>
- Date: Mon, 2 Nov 2009 19:20:11 +0000
On 2 Nov 2009, at 18:55, Chris Murphy wrote:
On Nov 2, 2009, at 10:04 AM, Martin Orpen wrote:
The PS conversion is bandy and ugly looking. The Argyll version is
extremely smooth and sexy looking.
Draw your own conclusions...
There isn't enough data to draw any conclusion. You've likely
triggered a bug, or have a problem in some procedure somewhere. The
differences in the various CMMs is visually typically minor. That
you're getting banding and ugliness with a product that has
converted billions of images over the better part of a decade
implies something unusual is occurring. To figure it out requires a
very clear step by step be published so others can try to reproduce
the the issue.
AFAIK there is no problem with ACE conversions, which have been
32bpc float for a few versions now. So there is no lacking in
precision for the conversions. Banding implies massive detail loss,
so again it's a bug or a procedural flaw.
The major difference between the two procedures is that the superior
proof was produced using a device link profile as well as a different
CMM.
The test page would appear to highlight the problems in the conversion
process NOT problems with the profile and or proofer.
--
Martin Orpen
Idea Digital Imaging Ltd
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