Method for compensating for transfer characteristics of a printi

Details Method for compensating for transfer characteristics of a printi Method for compensating for transfer characteristics of a printi

1994-03-15

1997-04-29

Boudreau, Leo

Image analysis

Image enhancement or restoration

382270, 358456, G06K 940, G06K 938

Patent

active

056257163

ABSTRACT:
A method of compensating for a predetermined transfer characteristic of a printing device in a halftoning process for screening an image containing a particular gray level value selected 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 predetermined transfer characteristic of the printing system; and (2) printing the area of the image having the particular selected gray level value using the selected bit pattern, or storing the selected bit pattern as part of a threshold array.

REFERENCES:
patent: 5177623 (1993-01-01), Hizota
patent: 5200831 (1993-04-01), Tai
patent: 5255085 (1993-10-01), Spence
patent: 5259042 (1993-11-01), Matsuki et al.
patent: 5291311 (1994-03-01), Miller
patent: 5309246 (1994-05-01), Barry et al.
patent: 5369506 (1994-11-01), Takenchi
patent: 5396607 (1995-03-01), Shimatani

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