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

1992-07-23

1996-05-07

Powell, Mark R.

395104, G06K 1500

Patent

active

055154794

ABSTRACT:
A method for processing images for printing includes the steps of for each separation, making a pixel level determination of marking material coverage, based on the number of pixels within a given area that are turned on; if a determination is made that too much marking material will be placed within the given area, turning off a fraction of pixels in the area to reduce the amount of marking material that will be used for the given area; and to preventing artifacts from occurring in the pixel reduction step by utilizing a processing order through each given area which tends to randomize the turn off effect. Additionally, the results of the determination are compared for each separation, to determine that the turnoff result allows at least one corresponding pixel among each of the separations to be turned ON.

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J. A. C. Yule, "Principles of Color Reproduction", John Wiley & Sons, Inc., N.Y., 1967; pp. 294-327.

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