ORIS PDF Tuner Version 4.4.8 User Manual - image2output - Support

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Transforming Image Colors
Manipulating Image Color Separations
two separations. This allows you to improve image colors and produce
a wide range of special effects.
This functionality is not available for RGB image.
Manipulating Color Separations: How It Works
Each color separation of the target image is defined by merging the four
color separations of the source (original) image. Merging means adding
or subtracting the source color separations.
The following table shows the separations merged to produce the unmodified
source image:
Target Source Image
C M Y K
C = 100 + 0 + 0 + 0
M = 0 + 100 + 0 + 0
Y = 0 + 0 + 100 + 0
K = 0 + 0 + 0 +100
Target Cyan is made of 100% Cyan + 0% Magenta + 0% Yellow + 0%
Black of the source image. The target Magenta is made of 0% Cyan
+ 100% Magenta + 0% Yellow + 0% Black of the source image, etc.
Related topics:
Changing Image Color Mode (page 27-1)
Creating Transparency for Layers (page 17-1)
‘Complex’ Tab (Transparency...) (page 17-3)
Fig. 24-3 STATUS Window for Color Separation Manipulations
The following figure shows the way the color separation values of the
above example are represented in the STATUS window:
Source separations
Target separations
Currently selected separation
1 means ‘100%’
A blank means ‘0%’
+ and – appear when modifications
are made, indicating
increase or decrease
Percentage value for currently
selected separation (marked with *)
ORIS PDF Tuner Version 4.4.8 User Manual 24-5
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