System and method for generating calibrated dither matrices

Details System and method for generating calibrated dither matrices System and method for generating calibrated dither matrices

1994-09-19

1998-06-02

Lee, Thomas D.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358465, 382168, 382169, 382237, H04N 140

Patent

active

057609209

ABSTRACT:
A method and a system for generating a dither matrix calibrated to a desired tonal response. The method and system comprise generating a dither matrix with a predicted tonal response, measuring the actual tonal response, manipulating a cumulative histogram for the dither matrix in response to the actual tonal response, and inputting the cumulative histogram to a dither matrix generation program to generate a dither matrix that conforms to the cumulative histogram. Other systems and methods are disclosed.

REFERENCES:
patent: 4742400 (1988-05-01), Tsuji
patent: 4792979 (1988-12-01), Nomura et al.
patent: 4910603 (1990-03-01), Hirahara et al.
patent: 5053888 (1991-10-01), Nomura
patent: 5410617 (1995-04-01), Kidd et al.
patent: 5469515 (1995-11-01), Lin

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