Method and system for the reduction of memory capacity required

Details Method and system for the reduction of memory capacity required Method and system for the reduction of memory capacity required

1997-05-13

1999-01-12

Boudreau, Leo H.

Image analysis

Histogram processing

With a gray-level transformation

382232, 382237, 382241, G06K 900, G06K 936, G06K 946, G06K 948

Patent

active

058599274

ABSTRACT:
A method for compressing a first bit digital input representative of first pixel data into a second bit digital output representative of second pixel data, the method comprises the steps of defining a logarithmic function for converting the first bit digital input into the second bit digital output; replacing a portion of the logarithmic function with a polynomial function; and compressing the first bit digital input into the second bit digital output by utilizing the logarithmic and polynomial function.

REFERENCES:
patent: 4199677 (1980-04-01), Vanderpool
patent: 4263650 (1981-04-01), Bennett et al.
patent: 4748577 (1988-05-01), Marchant
patent: 4791403 (1988-12-01), Mitchell et al.
patent: 4808826 (1989-02-01), Lim et al.
patent: 4973833 (1990-11-01), Takada et al.
patent: 5164993 (1992-11-01), Capozzi et al.
patent: 5184124 (1993-02-01), Molpus et al.

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