Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

1997-05-16

1998-05-05

Lee, Thomas D.

Facsimile and static presentation processing

Natural color facsimile

Image reproduction

358530, 382164, 395135, H04N 132

Patent

active

057483434

ABSTRACT:
When input color data requests a draw logic operation between pigments, a RGB draw operation is performed under the control of a controller. The controller performs a YMCK draw operation for a data input which does not require a draw logic operation between pigments so as to increase the number of reproducible gradation levels, reproducible resolution, and throughput. One of the RGB and YMCK draw operations can be properly selected in accordance with draw data supplied from a data source. A draw logic operation between pigments for data which does not require a draw logic operation between pigments can be realized without reducing the number of gradation levels and the resolution.

REFERENCES:
patent: 4931860 (1990-06-01), Narumiya
patent: 4998962 (1991-03-01), Edwards
patent: 5074206 (1991-12-01), Edwards
patent: 5280577 (1994-01-01), Trevett
patent: 5313291 (1994-05-01), Appel et al.
patent: 5475800 (1995-12-01), Vaughn et al.
patent: 5526140 (1996-06-01), Rozzi

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