Image processor having a discriminator for discriminating an ins

Details Image processor having a discriminator for discriminating an ins Image processor having a discriminator for discriminating an ins

1996-11-13

1998-12-15

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358529, 382266, G03F 308, G06K 940

Patent

active

058502939

ABSTRACT:
A digital image of a document having chromatic and achromatic colors is read, and an edge of a black character is discriminated. Further, an outside area and an inside area of the edge are detected. Edge emphasis is performed on an inside area of the edge for data of achromatic colors. On the other hand, data of chromatic colors in an inside area of the edge is substituted with a minimum data of the pixel under interest and pixels surrounding the pixel. Data of chromatic colors and of achromatic colors in the outside area is substituted with a minimum data of the pixel under interest and pixels surrounding the pixel.

REFERENCES:
patent: 5032903 (1991-07-01), Suzuki et al.
patent: 5047844 (1991-09-01), Ikeda et al.
patent: 5134667 (1992-07-01), Suzuki
patent: 5251023 (1993-10-01), Arimoto et al.
patent: 5392365 (1995-02-01), Steinkirchner
patent: 5398124 (1995-03-01), Hirota
patent: 5408343 (1995-04-01), Sugiura et al.

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