Method of and apparatus for eliminating pin holes
AssigneeDainippon Screen Mfg. Co., Ltd.
InventorHideaki Kitamura
Life of this patent
Estimating the term…
Abstract
A target region and a pin hole size are specified in a block copy image, which is divided into plural separate regions. The size of each separate region in the target region is calculated and compared with the pin hole size. The separate region smaller than the pin hole size is extracted as a possible pin hole area and filled with the color of its surrounding area, thereby the pin holes are eliminated.
Claims18
A method of eliminating a pin hole in a linework image by processing image data of the linework image, comprising the steps of:
- (a) specifying a pin hole size;
- (b) dividing the linework image into plural separate regions;
- (c) calculating the size of each separate region;
- (d) comparing the size of each separate region with said pin hole size to find a separate region smaller than said pin hole size as a possible pin hole area;
- and
- (e) filling said possible pin hole area with a color of a separate region surrounding said possible pin hole area;
- said step (c) comprising the step (c-1) of counting the number of pixels in each separate region.
A method of eliminating a pin hole in a linework image by processing image data of the linework image, comprising the steps of:
- (a) specifying a pin hole size;
- (b) dividing the linework image into plural separate regions;
- (c) calculating the size of each separate region;
- (d) comparing the size of each separate region with said pin hole size to find a separate region smaller than said pin hole size as a possible pin hole area;
- and
- (e) filling said possible pin hole area with a color of a separate region surrounding said possible pin hole area;
- said step (e) comprising the steps of:
- (e-1) filling said possible pin hole area with a specific color distinct from colors of the other separate regions, and displaying said linework image on display means;
- (e-2) determining whether or not said possible pin hole area is to be filled with the color of the surrounding separate region;
- and
- (e-3) filling said possible pin hole area with the color of the surrounding separate region according to the determination at said step (e-2).
An apparatus for eliminating a pin hole in a linework image by processing image data of the linework image, comprising:
- display means for displaying said linework image;
- input means for specifying a pin hole size;
- dividing means for dividing the linework image into plural separate regions;
- computation means for calculating the size of each separate region;
- comparing means for comparing the size of each separate region with said pin hole size to find a separate region smaller than said pin hole size as a possible pin hole area;
- and
- filling means for filling said possible pin hole area with a color of a separate region surrounding said possible pin hole area;
- said computation means comprising counting means for counting the number of pixels in each separate region.
An apparatus for eliminating a pin hole in a linework image by processing image data of the linework image, comprising:
- display means for displaying said linework image;
- input means for specifying a pin hole size;
- dividing means for dividing the linework image into plural separate regions;
- computation means for calculating the size of each separate region;
- comparing means for comparing the size of each separate region with said pin hole size to find a separate region smaller than said pin hole size as a possible pin hole area;
- and
- filling means for filling said possible pin hole area with a color of a separate region surrounding said possible pin hole area;
- said filling means comprises
- (a) first means for filling said possible pin hole area with a specific color distinct from colors of the other separate regions, and displaying said linework image on said display means,
- (b) second means for determining whether or not said possible pin hole area is to be filled with the color of the surrounding separate region, and
- (c) third means for filling said possible pin hole area with the color of the surrounding separate region according to the determination by said determining means.
Dependencies are inferred from the claim text.