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Achromatic Color/Separation

The term achromatic composition is a term used in process engineering for the electronic reproduction of color sets.

Areas of an image that become black or gray anyway are not built up by the portions of the colored basic colors (CMY) (as generated by the color build-up), but by black printing ink.

Figure 1: Comparison of Chromatic build-up versus Achromatic build-up - original image

Figure 2: Comparison of Chromatic build-up versus Achromatic build-up structure - Achromatic build-up

Figure 3: Comparison of Chromatic build-up versus Achromatic build-up - Chromatic build-up