Title:
IMAGE PROCESSOR, IMAGE FORMING DEVICE, AND RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP3912480
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an image processor that prevents thin lines from being missing due to screen processing so as to reproduce an image in an excellent way.
SOLUTION: A character/line color conversion section 31 applies color material color conversion to a rasterized image signal, and a maximum color discrimination section 41 identifies a maximum color among colors of color materials reproducing a color of line segments. A structure discrimination section 42 outputs a screen parameter flag to control a screen parameter so that a character/line screen processing section 35 can conduct screen processing of the maximum color at a screen angle different from a drawing direction of the line segments based on the identified maximum color and the drawing direction of the line segments. The character/line screen processing section 35 uses the screen parameter at a different screen angle from the drawing direction of the line segments according to the screen parameter flag to apply screen processing to the image. Thus, missing of the line segments due to the screen processing can be avoided.
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Inventors:
Atsushi Kitagawahara
Application Number:
JP2001060179A
Publication Date:
May 09, 2007
Filing Date:
March 05, 2001
Export Citation:
Assignee:
Fuji Xerox Co., Ltd
International Classes:
B41J5/30; B41J2/52; H04N1/52; B41J2/525; G06F3/12; G06K15/02; G06T5/00; H04N1/60; (IPC1-7): H04N1/52; B41J2/525; B41J2/52; B41J5/30; G06F3/12; G06T5/00; H04N1/60
Domestic Patent References:
| JP6284302A |
Attorney, Agent or Firm:
Masao Yanagisawa