| 摘要 |
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.
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