Facsimile and static presentation processing – Facsimile – Reduced time or bandwidth for static image communication
Patent
1991-10-09
1994-02-01
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Reduced time or bandwidth for static image communication
G06K 900
Patent
active
052836649
ABSTRACT:
An image recorder for converting input bilevel image data to multilevel data, executing various kinds of image processing with the mutlilevel data, and then recording the processed multilevel data. The image recorder converts input bilevel image data to M-level data (M being equal to or greater than 2), then requantized to N-level data, and then fed to a printer capable of recording data in three or more levels. The bilevel-to-multilevel conversion is effected in matching relation to the pattern of the input bilevel data. A plurality of bilevel-to-multilevel conversion means of different kinds are provided. The bilevel-to-multilevel conversion system is changed on the basis of the kind of input bilevel data. The M-level data is subjected to edge enhancement, magnification change, and gamma correction. Color image data produced by color separation are processed color by color and then fed to a printer.
REFERENCES:
patent: 4369463 (1983-01-01), Anastassiou et al.
patent: 4558370 (1985-12-01), Mitchell et al.
patent: 5014134 (1991-05-01), Lawton et al.
patent: 5050230 (1991-09-01), Jones et al.
Fujisawa Tetsuo
Hikita Toshiya
Sakano Yukio
Brinich Stephen
Melser Allen S.
Ricoh & Company, Ltd.
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