Method and apparatus for forming image using edge information of image
OwnerWoo-jun Chunginventor
Life of this patent
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Abstract
A method and apparatus to form an image by half-toning a plurality of areas of an input image using different multi-tone patterns with reference to edge information regarding edge areas and flat areas detected from the input image. The method includes detecting edge areas and flat areas of an input image, half-toning the input image by applying different multi-tone patterns to the detected edge and flat areas, and generating a half-toned image for the input image by integrating the edge and flat areas that have been half-toned with the different multi-tone patterns.
Claims20
A method of forming an image, the method comprising:
- detecting edge areas and flat areas of an input image;
- half-toning the input image by applying different multi-tone patterns to the detected edge and flat areas;
- and
- generating a half-toned image for the input image by integrating the edge areas and the flat areas that have been half-toned with the different multi-tone patterns.
A computer-readable recording medium comprising a computer program to execute the method of detecting edge areas and flat areas of an input image, half-toning the input image by applying different multi-tone patterns to the detected edge and flat areas, and generating a half-toned image for the input image by integrating the edge areas and the flat areas that have been half-toned with the different multi-tone patterns.
An image-forming apparatus, comprising:
- an edge detection unit to detect edge areas and flat areas of an input image;
- an image processing unit to half-tone the input image by applying different multi-tone patterns to the detected edge and flat areas;
- and
- an integration unit to generate a half-toned image for the input image by integrating the edge and flat areas that have been half-toned with the different multi-tone patterns by the image processing unit.
An image-forming method, comprising:
- detecting at least one edge area of an input image;
- applying a first multi-toned pattern to the detected at least one edge area to form a first toned image;
- detecting at least one flat area of the input image;
- applying a second multi-toned pattern to the detected at least one flat area to form a second toned image;
- and
- generating an image by integrating the first and second toned images corresponding to the multi-toned patterns.
Dependencies are inferred from the claim text.