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Improving spot color simulation using color combiner for RGB and Grayscale output


Product

  Prinergy Connect 2.1 ; Prinergy Powerpack 2.1

Platform

 

Operating system

 


Error

 


Symptoms

 

Spot color recipes used by color combiner do not produce the expected color on proofing output when the target is RGB or Grayscale.


Cause

  The recipes are converted from their original colorspace to CMYK by the Creo colormatcher. Then they are converted from CMYK to the target space by the color combiner. This produces inferior results compared to converting the recipes directly from their source space to the target space.

Solution

 

There is a parameter: /OutputRecipeSpace

that can have one of two values:

/AlwaysDeviceCMYK

/SameAsTargetSpace

The default value will be /AlwaysDeviceCMYK but this can be controlled by replacing the file CreoAraxi\data\ColorMatcher\DefaultOutputPDFCPreferences.prf

for a particular instance of the Creo colormatcher JTP. The replacement preference file should have /OutputRecipeSpace set to /SameAsTargetSpace.

This will instruct the Creo colormatcher to convert recipes directly to the target space.

Permanent fix:


See also

 


Keywords

 

color, Creo PDF ColorMatcher, output, proofing, spot color


Technical contact(s)
 

Glen Cairns

Submitted by
 

Glen Cairns

Date submitted
 

28 Jul 2003


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