DE69827323D1 - Bildverarbeitungsschaltung - Google Patents
BildverarbeitungsschaltungInfo
- Publication number
- DE69827323D1 DE69827323D1 DE69827323T DE69827323T DE69827323D1 DE 69827323 D1 DE69827323 D1 DE 69827323D1 DE 69827323 T DE69827323 T DE 69827323T DE 69827323 T DE69827323 T DE 69827323T DE 69827323 D1 DE69827323 D1 DE 69827323D1
- Authority
- DE
- Germany
- Prior art keywords
- image processing
- processing circuit
- circuit
- image
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40062—Discrimination between different image types, e.g. two-tone, continuous tone
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18636097 | 1997-07-11 | ||
JP18636097A JP3540128B2 (ja) | 1997-07-11 | 1997-07-11 | 画像処理回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69827323D1 true DE69827323D1 (de) | 2004-12-09 |
DE69827323T2 DE69827323T2 (de) | 2005-11-10 |
Family
ID=16187019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69827323T Expired - Lifetime DE69827323T2 (de) | 1997-07-11 | 1998-06-03 | Bildverarbeitungsschaltung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6163624A (de) |
EP (1) | EP0891074B1 (de) |
JP (1) | JP3540128B2 (de) |
DE (1) | DE69827323T2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2364415B (en) * | 2000-06-30 | 2004-10-20 | Post Office | Image processing |
US7515748B2 (en) * | 2004-01-22 | 2009-04-07 | Lexmark International, Inc. | Controlled moving window adaptive histogram equalization |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4590606A (en) * | 1982-12-13 | 1986-05-20 | International Business Machines Corporation | Multi-function image processing system |
DE3686821T2 (de) * | 1985-01-10 | 1993-04-01 | Nippon Telegraph & Telephone | Halbtonbildverarbeitungseinrichtung. |
US5014124A (en) * | 1988-02-25 | 1991-05-07 | Ricoh Company, Ltd. | Digital image processing apparatus |
JPH0286369A (ja) * | 1988-09-22 | 1990-03-27 | Toshiba Corp | 画像処理装置 |
JPH0722330B2 (ja) * | 1990-01-10 | 1995-03-08 | 富士ゼロックス株式会社 | 画像処理装置の画像領域識別方式 |
JPH04270561A (ja) * | 1990-10-08 | 1992-09-25 | Ricoh Co Ltd | 画像処理装置 |
JPH04188948A (ja) * | 1990-11-22 | 1992-07-07 | Canon Inc | 画像処理装置 |
JP3488477B2 (ja) * | 1992-06-03 | 2004-01-19 | ミノルタ株式会社 | 画像処理装置 |
JP3215768B2 (ja) * | 1994-03-24 | 2001-10-09 | 株式会社東芝 | 画像処理装置 |
JP3207690B2 (ja) * | 1994-10-27 | 2001-09-10 | シャープ株式会社 | 画像処理装置 |
US5754312A (en) * | 1994-11-22 | 1998-05-19 | Mita Industrial Co., Ltd. | Method of and apparatus for detecting pixels constituting dotted image area utilizing distance between change points of pixel values |
-
1997
- 1997-07-11 JP JP18636097A patent/JP3540128B2/ja not_active Expired - Fee Related
-
1998
- 1998-06-03 EP EP98110092A patent/EP0891074B1/de not_active Expired - Lifetime
- 1998-06-03 DE DE69827323T patent/DE69827323T2/de not_active Expired - Lifetime
- 1998-06-10 US US09/095,373 patent/US6163624A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6163624A (en) | 2000-12-19 |
JP3540128B2 (ja) | 2004-07-07 |
DE69827323T2 (de) | 2005-11-10 |
JPH1132212A (ja) | 1999-02-02 |
EP0891074A1 (de) | 1999-01-13 |
EP0891074B1 (de) | 2004-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |