Oki CX3641MFP Technical Reference page 80

Color
order
Original color
Case 1 Substitute 3
Substitute 4
Case 2 Substitute 4
Substitute 3
S -O
POT N
Priority scheme
If two substitute colors are defined with the same value-names, but with different sets of
CMYK values and different tolerance ranges, Spot-On resolves the priority of substitution
according to the order of color in the group.
Spot-On process color substitution is based on the order of color in the group. The color
entries at the top of the list have priority over the colors at the bottom of the list. Spot-On
scans the list from top to bottom and processes substitution in linear order. When a color is
remapped, it is not overridden by any subsequent substitution call.
The following color examples show how the priority scheme works.
• <100, 0, 0, 0> for the CMYK values (cyan)
Original color:
• <0, 100, 100, 0> (red) with a small tolerance
Substitute 3:
• <100, 0, 100, 0> (green) with a large tolerance
Substitute 4:
In the examples, the extreme values and terms "red" and "green" are used for
N :
OTE
illustrative purposes only.
Order of the colors
• Substitute 3 (red) is higher than Substitute 4 (green) in the list.
Case 1:
• Substitute 4 (green) is higher than Substitute 3 (red) in the list.
Case 2:
The following table shows the scheme of priority when the same value-names are
assigned to the original color with different sets of CMYK values and different tolerance
ranges.
Substitution
value-name
<100.0c, 0.0m, 0.0y, 0.0k>
<100.0C, 0.0M, 0.0Y,
0.0K>
<100.0C, 0.0M, 0.0Y,
0.0K>
<100.0c, 0.0m, 0.0y, 0.0k>
Substitute 3 and Substitute 4 have the same value-names, but depending on their order in
the list, Spot-On produces different results.
• In Case 1, Substitute 3, red, is given higher priority because it is higher in the list. All
occurrences of the original color, cyan, within the Small tolerance range are substituted
with red. Occurrences of cyan within the Large tolerance range but not within the
Small tolerance range are substituted with Substitute 4, green.
CMYK values Before
substitution
<100, 0, 0, 0>
<0, 100, 100, 0> cyan
<100, 0, 100, 0>
<100, 0, 100, 0> cyan
<0, 100, 100, 0>
80
After
substitution
red
(see the following)
green
(see the following)