Method for compensating for transfer characteristics of a...

H - Electricity – 04 – N

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H04N 1/405 (2006.01)

Patent

CA 2142037

A method of compensating for a predetermined transfer char- acteristic of a printing device in a halftoning process for screening an image containing a particular gray level value se- lected from a predetermined finite number of gray level values, including the steps of (1) selecting for the particular gray level value a bit pattern from a large plurality of bit patterns which is larger than the predetermined finite number of gray levels, the selection being based upon the application of a pre- determined transfer characteristic of the printing system; and (2) printing the area of the image having the particular se- lected gray level value using the selected bit pattern, or stor- ing the selected bit pattern as part of a threshold array.

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