Black generation settings define the relationship between Black and CMY inks. This is the process of adding Black (K) ink to Process Colors when converting from RGB to CMYK. The addition of black ink provides the opportunity of getting the same measurable color in multiple ways. Profiles only store a single device output combination (recipe) for each measured color. Black generation rules are applied to select only a single way of combining black ink with other inks to get a single combination for each measurable value. Apply engine now uses Tetrahedral Interpolation.

Usually handled through UCR or GCR methodologies.

ONYX Profile Generation separates "Black Generation" into two general regions:

• Achromatic - Colors near grayscale (C = M = Y)
• Chromatic - Non gray colors (C ≠ M ≠ Y)
• Separate control allows for trade-offs to be localized.

Black Generation drop-down:

• Determines the shape of the "curve" or rate at which black is added (i.e.: NoK, MaxK, Moderate)
• Determines how abruptly the transition to black occurs

See ICC Build Options.

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BlackGeneration2.jpg (image/jpeg)