Image processor including processing for image data between edge or boundary portions of image data
AssigneeMinolta Co., Ltd.
InventorsYOSHIHIKO HIROTA, KAZUHIRO ISHIGURO
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Abstract
In order to improve character edge reproducibility in reproducing a color document image, a boundary between a character and a background is detected in color image data. Further, if the detected edge exists at the side of a character, it is decided as a true edge, and the image data are subjected to edge emphasis. Then, when an image is reproduced, undesirable partial whitening in characters in the image can be prevented.
Claims10
An image processor which processes image data of an image consisting of a plurality of pixels, comprising:
- a first allocator which decides an edge portion in the image included in the image data and allocates a specified attribute as an attribute of pixels located in the edge portion;
- and
- a second allocator which allocates the specified attribute as an attribute of pixels located in an area interposed between two edge portions.
An image processor which processes image data of an image consisting of a plurality of pixels, comprising:
- a first allocator which decides a boundary portion between a character image and a background in the image included in the image data and allocates a specified attribute as an attribute of pixels located in the boundary portion;
- a second allocator which allocates the specified attribute as an attribute of pixels located in an area interposed between two boundary portions;
- an area discriminator which discriminates whether each of the image data belongs to a character image area or a background image area;
- and
- a corrector which performs a specified correction for image data of the pixels to which the specified attribute is allocated by said first and second allocators according to discrimination by said area discriminator.
Dependencies are inferred from the claim text.