Image processing method to reduce marking material coverage in p

Details Image processing method to reduce marking material coverage in p Image processing method to reduce marking material coverage in p

1993-11-29

1996-05-21

Powell, Mark R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358526, G06F 312

Patent

active

055198155

ABSTRACT:
In a device for processing color images preparatory to printing, there is provided a method of reducing marking material coverage in text and line art areas of secondary colors including the steps of: a) determining the locations of text and line art color pixels having excessive marking material coverage; b) upon determining the locations of color pixels having excessive marking material coverage, processing separation pixels to turn OFF a predetermined portion of the separation pixels corresponding to color pixels having excessive marking material coverage; and c) to prevent artifacts from occurring in the pixel reduction step, processing a given area of separation pixels in an order which tends to randomize the turn OFF effect.

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