Digital masking operation method and machine

Details Digital masking operation method and machine Digital masking operation method and machine

1982-05-14

1983-08-30

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 78, 358 80, H04N 146

Patent

active

044020074

ABSTRACT:
A digital masking operation method and machine used in a color control system of a picture reproducing machine such as a color scanner, a color facsimile, or the like, wherein n sets of memory tables are indexed by means of color separation data of primary colors, and wherein data from each memory table is utilized to output a partial sum of predetermined relation to the input according to a conversion table stored therein and then the output data of the primary colors are added for each of the primary colors, in an adder thereby obtaining masking data for each of the primary colors.

REFERENCES:
patent: 3885244 (1975-05-01), Keller
patent: 4054916 (1977-10-01), Knop
patent: 4060829 (1977-11-01), Sakamoto
patent: 4096519 (1978-06-01), Hoffrichter
patent: 4270141 (1981-05-01), Sakamoto
patent: 4275413 (1981-06-01), Sakamoto

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