Title:
IMAGE PROCESSING METHOD FOR COLOR ELECTRONIC PHOTOGRAPH AND ITS ELECTRONIC PHOTOGRAPHING SYSTEM
Document Type and Number:
Japanese Patent JP3835037
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize a screen angle expressed in irrational tangent or to make all dot pitches of screen in different colors equal to each other.
SOLUTION: In the image processing to express gradation by a mesh point consisting of a plurality of dots, an image reproduction engine is utilized, which attaches toner to a development area with a prescribed area at a prescribed position in response to image reproduction data consisting of dots. Then a gravity center position of a mesh consisting of a single dot or a plurality of adjacent dots is shifted to an optional position from the center of the dots to realize a desired screen angle or a desired mesh point pitch. As a result, an irrational tangent screen angle is realized and the mesh point pitch of a plurality of screen in a plurality of colors are all made equal.
Inventors:
Toru Fujita
Application Number:
JP2866699A
Publication Date:
October 18, 2006
Filing Date:
February 05, 1999
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H04N1/52; B41J2/52; G03G15/01; G06T5/00; H04N1/405; H04N1/407; H04N1/60; (IPC1-7): H04N1/52; B41J2/52; G03G15/01; G06T5/00; H04N1/29; H04N1/60; H04N1/405; H04N1/407
Domestic Patent References:
| JP8023452A | ||||
| JP10075375A | ||||
| JP9277607A | ||||
| JP9200519A | ||||
| JP6030276A | ||||
| JP7038767A | ||||
| JP8181876A | ||||
| JP63235968A |
Attorney, Agent or Firm:
Kenji Doi
Hayashi Tsunetoku
Masahiko Ueyanagi
Osamu Suzawa
Hayashi Tsunetoku
Masahiko Ueyanagi
Osamu Suzawa
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