Patent EP0395032A2 successfully refreshed from Google Patents.
EP0395032A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Color image processing apparatus
Assignee: Konica Minolta Inc
•
Filing: 1990-04-25
•
Granted: —
•
Expires: 2010-04-25
Abstract
Abstract A color image processing apparatus wherein a color code is generated by a color code generating device (2) in a state where a region to be assigned to chromatic color or achromatic color is changed according to the density gradient of color reading signals, and a document discrimination is executed by counting this color code for each pixel by a document discriminating device (11). A region to be assigned to achromatic color or chromatic color is changed in accordance with the kinds of images, and simultaneously, a different image processing is carried out according to the kind of an image.
Inventors
- 👤 Koji C/O Konica Corporation Washio
- 👤 Seiichiro C/O Konica Corporation Hiratsuka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 19:47
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; H; H04; H04N; H04N1/00; H04N1/46; H04N1/56
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A color image processing apparatus characterized by comprising; color document reading means (A) for reading a ducument and generating a first color image signal for each pixel, color code generating means (2) for processing said first color image signal and generating a second color image signal having a code corresponding to a color of each pixel of said document, image discriminating means (4) for discriminating the kind of said document image, color code modifying means (5) for modifying said second color image signal on the basis of a result of said image discriminating means (4), and document discriminating means (11) for discriminating whether said document is a monochromatic document or a color document by counting the color code modified by said color code modifying means (5).
Claim 2
Dependent Claim
126 words
A color image processing apparatus characterized by comprising; color document reading means (A) for reading a ducument and generating a first color image signal for each pixel, color code generating means (2) for processing said first color image signal and generating a second color image signal having a code corresponding to a color of each pixel of said document, image discriminating means (4) for discriminating the kind of said document image, color code modifying means (5) for modifying said second color image signal on the basis of a result of said image discriminating means (4), and document discriminating means (11) for discriminating whether said document is a monochromatic document or a color document by counting the color code modified by said color code modifying means (5).
Claim 3
Dependent Claim
33 words
The color image processing apparatus according to claim 1, further comprising color ghost correcting means (7), wherein the document is discriminated by counting the color code corrected by said color ghost correcting means.
Claim 4
Dependent Claim
29 words
The color image processing apparatus according to claim 1, wherein said image discriminating means (4) discriminates the image according to the density gradient of said first color image signal.
Claim 5
Dependent Claim
49 words
The color image processing apparatus according to claim 1, wherein said color code has a chromatic color code, achromatic color code and intermediate color code, and said color code modifying means (5) modifies the intermediate color code to change to the chromatic color code or the achromatic color code.
Claim 6
Dependent Claim
46 words
The color image processing apparatus according to claim 2, wherein said color code has a chromatic color code, achromatic color code and intermediate color code, and said color ghost correcting means (5) changes said intermediate color code to the chromatic color code or achromatic color code.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.