Image processor and method for processing pixel data

Details Image processor and method for processing pixel data Image processor and method for processing pixel data

1992-06-05

1994-04-05

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358465, 358463, 358530, 358532, 382 50, 382 54, H04N 140, G06K 940, G06K 944

Patent

active

053010388

ABSTRACT:
An image processor has image processing logic for detecting pixel data representing stepped chrominance or luminance transitions characteristic of staircase aliasing in a source image and for producing an output image including selective antialiasing on the detected stepped transitions. The image processing logic operates as a post processor, but is able to give much better results than conventional convolution filtering.

REFERENCES:
patent: 4371872 (1983-02-01), Rossman
patent: 4484349 (1984-11-01), McCubbrey
patent: 4486785 (1984-12-01), Lasher et al.
patent: 4547811 (1985-10-01), Ochi et al.
patent: 4704605 (1987-11-01), Edelson
patent: 4873515 (1989-10-01), Dickson et al.
patent: 4908780 (1990-03-01), Priem et al.

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