Image processing method and apparatus with adding of a white out

Details Image processing method and apparatus with adding of a white out Image processing method and apparatus with adding of a white out

1993-12-13

1996-10-08

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358448, 358532, H04N 140, H04N 146

Patent

active

055637132

ABSTRACT:
An image processing method and apparatus for preventing a character image from being thinned in hatching processing. First, edge-enhancing is performed upon a character image pattern before it is synthesized with a hatching pattern. The edge-enhancing is made by Laplacian processing, increasing density of an image signal corresponding to a hatch area, or fatting of the character image. The exterior outline of the edge-enhanced character image is extracted and data for forming a white-outline is generated. Finally, the white-outline is added to the edge-enhanced character image pattern, and the hatching pattern is synthesized with the character image pattern.

REFERENCES:
patent: 5206719 (1993-04-01), Ikeda et al.
patent: 5283671 (1994-02-01), Stewart et al.
patent: 5357353 (1994-10-01), Hirota
patent: 5392137 (1995-02-01), Okubo

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