Color image processing apparatus
First Claim
Patent Images
1. A color image processing apparatus comprising:
- (a) discriminating means for discriminating an achromatic and line image portion within an image;
(b) reducing means for reducing a chromatic color component within an area near said achromatic and line image portion discriminated by said discriminating means; and
(c) suppressing means for suppressing a chromatic color component reduced by said reducing means.
1 Assignment
0 Petitions
Accused Products
Abstract
An edge portion of an achromatic area is detected to emphasize the edge portion and reduce the density of a chromatic area near the edge portion, and the reduced chromatic portion signal is further suppressed, such that the half tone area can be processed at high gradation and the black character and line image can be outputted with more black and high resolution, resulting in less color bleeding.
-
Citations
18 Claims
-
1. A color image processing apparatus comprising:
-
(a) discriminating means for discriminating an achromatic and line image portion within an image; (b) reducing means for reducing a chromatic color component within an area near said achromatic and line image portion discriminated by said discriminating means; and (c) suppressing means for suppressing a chromatic color component reduced by said reducing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A color image processing apparatus comprising:
-
(a) detecting means for detecting an achromatic and line image portion of an image; (b) means responsive to a detection by said detecting means for emphasizing an edge portion of said achromatic and line image portion and reducing a chromatic color component within an area near said achromatic and line image portion; and (c) suppressing means for suppressing a chromatic color component reduced by said reducing means. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A color image copying apparatus comprising:
-
(a) a color image sensor for converting an object image into a color image signal; (b) processing means for processing said color image signal converted by said color image sensor, said processing means including; (c) discriminating means for discriminating an achromatic and line image portion within the object image; (d) reducing means for reducing a chromatic color component within an area near said achromatic and line image portion discriminated by said discriminating means; and (e) suppressing means for suppressing a chromatic color component reduced by said reducing means; and (f) a color printer for independently forming a chromatic color image and an achromatic image, respectively, of said color image signal processed by said processing means. - View Dependent Claims (16, 17, 18)
-
Specification