Color masking circuit and color video printer using the same

Details Color masking circuit and color video printer using the same Color masking circuit and color video printer using the same

1989-11-30

1990-09-04

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, H04N 146

Patent

active

049548891

ABSTRACT:
A color masking circuit and a color printer incorporating the color masking circuit which performs color masking processing upon color density data to indicate the density of the color picture elements. The color masking circuit includes a matrix coefficient table for holding predetermined matrix coefficients which are used in the masking of the inputted color density data. A matrix coefficient selector selects predetermined matrix coefficients from the matrix coefficient table according to the color density data correction to be performed. Multiplication and adder circuits are also provided for calculating the corrected color density data in accordance with the selected matrix coefficients. However, the matrix coefficients may be taken directly from a look-up table by addressing the table with the color density data to be corrected.

REFERENCES:
patent: 4740833 (1988-04-01), Shiota et al.
patent: 4745466 (1988-05-01), Yoshida et al.
patent: 4751535 (1988-06-01), Myers
patent: 4789892 (1988-12-01), Tsuzuki et al.
patent: 4796086 (1989-01-01), Ohta et al.
patent: 4811239 (1989-03-01), Tsao
patent: 4814867 (1989-03-01), Tsuda et al.
patent: 4814891 (1989-03-01), Uchiyama et al.
patent: 4819193 (1989-04-01), Imao
patent: 4829323 (1989-05-01), Suzuki et al.

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