Re: What causes color mapping error?
Re: What causes color mapping error?
- Subject: Re: What causes color mapping error?
- From: email@hidden
- Date: Wed, 22 Nov 2000 09:25:06 EST
In a message dated 11/22/00 1:04:58 AM, email@hidden (Lee
Blevins) writes:
<< Here's what we're doing.
1) Create profile of print condition #1.
2) Create profile of print condition #2.
3) Print file on #1 as is.
4) P2P file in Pshop 5.5 with a 1 to 2 conversion.
5) Print file on print condition #2.
Match couldn't be further off.
The problem is the shadows are lightened.
We can see this if we try this.
1) Create a 4x100 to 4x0 gray scale in Pshop. (CMYK)
2) P2P in Pshop 5.5 from CMYK space to RGB space.
The shadow is lightened by quite a margin.
The 4x100 become all 50's and 60's.
Why is this?
Even if we profile two (nearly identical) cmyk printers and to a P2P
(cmyk to cmyk) the image gets whacked. the 4x100 shadows become
something like 56,54,57,62.
The resulting print is so far off I couldn't give it away.
We're using Kodak Colorflow.
Would using a different system change this? >>
Are you using the Kodak CMM? I have had problems with this particular CMM.
The results you are describing are similar to what I was getting. Switching
to the built-in CMM or Apple CMM fixed the problem.
Dan Gillespie
ColorGeek.com
1853 Harrington Drive
Lancaster, PA 17601
717-581-5177
email@hidden