[54] METHOD AND APPARATUS FOR COLOR CONVERSION
[75] Inventors: Yoshitorao Goshima, Yokohama;
Kazuo Kawakubo, Hino; Katsushi
Furuichi; Hisashi Sakamaki, both of
Yokohama; Osaimi Sawamura,
Atsugi; Yutaka Komiya, Tokyo;
Masahiro Tomosada, Kawasaki, all of
Japan
[73] Assignee: Canon Kabushiki Kaisha, Tokyo,
Japan
[21] Appl. No.: 908,891
[22] Filed: May 23,1978
[30] Foreign Application Priority Data
May 24, 1977 [JP] Japan 52-60163
Sep. 9, 1977 [JP] Japan 52-108578
[51] Int. CI.* G03G 15/01
[52] U.S.C1 355/4; 118/645;
355/14 R; 430/43
[58] Field of Search 355/4, 14, 32; 96/1.2;
118/645,7
[56] References Cited
U.S. PATENT DOCUMENTS
3,801,197 4/1974 Akiyama et al 355/4
4,008,962 2/1977 Nepper 355/4 X
4,045,218 8/1977 McVeigh 355/4 X
Primary Examiner—R. L. Moses
Attorney, Agent, or Firm—Fitzpatrick, Cella, Harper &
Scinto
[57] ABSTRACT
A method and an apparatus for color conversion capable of converting a particular color of an image original into another color as desired, in which indication is made as to what color of the image original colors other than that designated for the color conversion can be converted into; and, on the basis of this indication, designation for the color conversion in the image original colors other than that previously designated can be done, and, further, on the basis of this color conversion designation, a set of the color-separation filter and the developing color can be automatically selected.
48 Claims, 74 Drawing Figures
