Method and apparatus for dividing image area
AssigneeFuji Xerox Co., Ltd.
InventorAtsushi Kasao
Life of this patent
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Abstract
In a method and apparatus for dividing an image area according to the present invention, when data of a quantized multi-gradational image are to be divided into regions according to a texture of the image, the quantized multi-gradational image data are divided into plural rectangular subareas and boundary areas. Each of the rectangular subareas and a boundary area in the periphery of the subarea are combined to form one set. The area dividing is conducted on each of the sets. In the area dividing, the subarea is subjected one time to a dividing process, and the boundary area is subjected two or more times to a dividing process.
Claims9
A method for segmenting quantized multi-gradational image data into areas corresponding to image texture comprising the steps of:
- creating in said quantized multi-gradational image data a plurality of rectangular subareas and a plurality of rectangular boundary areas located between adjacent subareas;
- dividing said image data in each of said rectangular subareas and rectangular boundary areas into subareas corresponding to an image texture;
- recalculating a closest area center of pixels included in said divided area bounded by an unnatural outline, wherein said closest area center is an area center having the shortest distance between a pixel in a divided area with an inconsistency and area centers stored in said divided area;
- relocating said pixels included in said divided area bounded by an unnatural outline;
- and
- relocating said closest area center.
Dependencies are inferred from the claim text.