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Contrast and brightness

Contrast and brightness is only applicable for PostScript and PDF jobs. If contrast and/or brightness adjustments are required, the following attributes of the ColorCorrectionParams must be used. The mapping between the required contrast adjustment and lightness adjustment level and the JDF attribute value is described below:

AdjustContrast and AdjustLightness

Syntax

XPath:

/JDF[contains(@Types="ColorCorrection")]/ResourcePool/ColorCorrectionParams/ColorCorrectionOp/@AdjustContrast

/JDF[contains(@Types="ColorCorrection")]/ResourcePool/ColorCorrectionParams/ColorCorrectionOp/@AdjustLightness

Type

Double

Supported range

[-100 .. +100]

Values are ignored when the values are out of range. If a value is not specified in the table, the nearest value in the table is used.

@AdjustConstrast

Contrast adjustment

0 (default)

0: no change

10

1

20

2

30

3

40

4: more contrast

@AdjustLightness

Brightness adjustment

-30

-3: darkest

-20

-2

-10

-1

0

0: no change

10

1

20

2

30

3: brightest