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United States Patent [w]

Tsuji

US005861963A [ii] Patent Number: 5,861,963 [45] Date of Patent: Jan. 19, 1999

[54] IMAGE PROCESSING APPARATUS AND METHOD

[75] Inventor: Hiroyuki Tsuji, Yokohama, Japan

[73] Assignee: Canon Kabushiki Kaisha, Tokyo, Japan

[21] Appl. No.: 954,512

[22] Filed: Oct. 20, 1997

Related U.S. Application Data

[63] Continuation of Ser. No. 413,459, Mar. 30, 1995, abandoned.

[30] Foreign Application Priority Data

Mar. 31, 1994 [IP] lapan 6-062966

[51] Int. CI.6 G03F 3/08; H04N 1/46

[52] U.S. CI 358/530; 358/529; 382/166;

382/266

[58] Field of Search 358/500, 504,

358/515, 518, 519, 522, 523, 524, 529, 530, 532, 534, 538, 537, 540, 448, 462; 382/162, 163, 166, 167, 266; 395/114

[56] References Cited

U.S. PATENT DOCUMENTS

5,359,436 10/1994 Dichter 358/500

5,446,476 8/1995 Kouzaki 358/518

FOREIGN PATENT DOCUMENTS

0142975 5/1985 European Pat. Off H04N 1/46

0415648 3/1991 European Pat. Off G06F 15/66

2132052 12/1982 United Kingdom H04N 1/46

Primary Examiner—David K. Moore

Assistant Examiner—Jerome Grant, II

Attorney, Agent, or Firm—Fitzpatrick, Cella, Harper &

Scinto

[57] ABSTRACT

An image processing apparatus includes a first input unit which scans an original image and generates a first image signal, and a second input unit which inputs a second image signal from an external apparatus. An edition unit performs an edition by combining the first and second image signals, and a color gamut mapping device performs a color gamut mapping on an input image signal. An image forming device forms a color image according to the color gamut mapped image signal, wherein the edition is executed by the edition unit before the color gamut mapping is performed by the color gamut mapping device.

12 Claims, 18 Drawing Sheets

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