DE69328660T2 - Bildverarbeitungsvorrichtung - Google Patents
BildverarbeitungsvorrichtungInfo
- Publication number
- DE69328660T2 DE69328660T2 DE69328660T DE69328660T DE69328660T2 DE 69328660 T2 DE69328660 T2 DE 69328660T2 DE 69328660 T DE69328660 T DE 69328660T DE 69328660 T DE69328660 T DE 69328660T DE 69328660 T2 DE69328660 T2 DE 69328660T2
- Authority
- DE
- Germany
- Prior art keywords
- image processing
- processing device
- 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
- H04N1/409—Edge or detail enhancement; Noise or error suppression
- H04N1/4092—Edge or detail enhancement
-
- 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
- H04N1/40087—Multi-toning, i.e. converting a continuous-tone signal for reproduction with more than two discrete brightnesses or optical densities, e.g. dots of grey and black inks on white paper
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Facsimile Image Signal Circuits (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33664292 | 1992-11-24 | ||
JP4345393A JP3029748B2 (ja) | 1992-08-24 | 1992-11-30 | 画像処理装置 |
JP05077712A JP3136024B2 (ja) | 1992-11-24 | 1993-03-10 | 中間調画像処理装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69328660D1 DE69328660D1 (de) | 2000-06-21 |
DE69328660T2 true DE69328660T2 (de) | 2001-01-11 |
Family
ID=27302498
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69333444T Expired - Lifetime DE69333444T2 (de) | 1992-11-24 | 1993-11-22 | Bildverarbeitungsvorrichtung |
DE69328660T Expired - Lifetime DE69328660T2 (de) | 1992-11-24 | 1993-11-22 | Bildverarbeitungsvorrichtung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69333444T Expired - Lifetime DE69333444T2 (de) | 1992-11-24 | 1993-11-22 | Bildverarbeitungsvorrichtung |
Country Status (3)
Country | Link |
---|---|
US (2) | US5515180A (de) |
EP (2) | EP0599243B1 (de) |
DE (2) | DE69333444T2 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10285390A (ja) * | 1997-04-03 | 1998-10-23 | Minolta Co Ltd | 画像処理装置 |
JPH0818777A (ja) * | 1994-03-08 | 1996-01-19 | Ricoh Co Ltd | 画像処理装置 |
JPH07283944A (ja) * | 1994-04-07 | 1995-10-27 | Fujitsu Ltd | 画像読み取り装置における白レベル情報補正装置及び白レベル情報補正装置付き画像読み取り装置 |
JP3335009B2 (ja) * | 1994-09-08 | 2002-10-15 | キヤノン株式会社 | 画像処理方法及び画像処理装置 |
US5870503A (en) * | 1994-10-20 | 1999-02-09 | Minolta Co., Ltd. | Image processing apparatus using error diffusion technique |
US5729627A (en) * | 1994-11-16 | 1998-03-17 | Mita Industrial Co., Ltd. | Apparatus for and method of judging dotted image area |
JPH08214161A (ja) * | 1995-02-03 | 1996-08-20 | Toshiba Corp | 画像処理装置 |
JP3347591B2 (ja) * | 1995-07-31 | 2002-11-20 | キヤノン株式会社 | 画像処理方法及び装置 |
JP3444094B2 (ja) * | 1995-10-06 | 2003-09-08 | セイコーエプソン株式会社 | 画像処理方法及びその装置 |
JPH10271331A (ja) * | 1997-03-26 | 1998-10-09 | Oki Data:Kk | 画像処理方法及びその装置 |
JP3568732B2 (ja) | 1997-04-18 | 2004-09-22 | シャープ株式会社 | 画像処理装置 |
JP3585703B2 (ja) | 1997-06-27 | 2004-11-04 | シャープ株式会社 | 画像処理装置 |
US5865361A (en) | 1997-09-23 | 1999-02-02 | United States Surgical Corporation | Surgical stapling apparatus |
JP3489806B2 (ja) * | 1997-12-08 | 2004-01-26 | 株式会社リコー | 画像処理装置及び方法 |
JP2001093226A (ja) | 1999-09-21 | 2001-04-06 | Sony Corp | 情報通信システムおよび方法、ならびに、情報通信装置および方法 |
US6671395B1 (en) * | 1999-10-15 | 2003-12-30 | D. Michael Ott | Document image processing with stroke preservation and background suppression |
JP2001218047A (ja) * | 2000-02-04 | 2001-08-10 | Fuji Photo Film Co Ltd | 画像処理装置 |
JP3961736B2 (ja) * | 2000-02-04 | 2007-08-22 | 株式会社リコー | 画像処理装置 |
US20030086099A1 (en) * | 2001-11-02 | 2003-05-08 | Eastman Kodak Company | Calibration method for a printing apparatus using photosensitive media |
TW200407030A (en) * | 2002-10-30 | 2004-05-01 | Umax Data Systems Inc | Image compensation method |
US7450279B2 (en) * | 2003-02-19 | 2008-11-11 | Canon Kabushiki Kaisha | Image reading apparatus |
US7440633B2 (en) * | 2003-12-19 | 2008-10-21 | Sharp Laboratories Of America, Inc. | Enhancing the quality of decoded quantized images |
JP4471813B2 (ja) * | 2004-10-29 | 2010-06-02 | 株式会社リコー | 画像処理装置、画像形成装置及びプログラム |
US20060093203A1 (en) * | 2004-11-04 | 2006-05-04 | Rockwell Automation Technologies, Inc. | Attribute threshold evaluation scheme |
US7684633B2 (en) * | 2005-06-28 | 2010-03-23 | Xerox Corporation | System and method for image file size control in scanning services |
US20070076265A1 (en) * | 2005-10-03 | 2007-04-05 | Lexmark International, Inc. | Method of bit depth reduction for an apparatus |
JP2007241479A (ja) | 2006-03-06 | 2007-09-20 | Toshiba Corp | 変動領域検出装置及びその方法 |
US20110044544A1 (en) * | 2006-04-24 | 2011-02-24 | PixArt Imaging Incorporation, R.O.C. | Method and system for recognizing objects in an image based on characteristics of the objects |
US8061576B2 (en) | 2007-08-31 | 2011-11-22 | Tyco Healthcare Group Lp | Surgical instrument |
JP4986976B2 (ja) * | 2007-12-20 | 2012-07-25 | キヤノン株式会社 | 画像処理装置、画像形成装置および画像処理方法 |
JP4975002B2 (ja) * | 2007-12-20 | 2012-07-11 | キヤノン株式会社 | 画像処理装置、画像形成装置および画像処理方法 |
CN102542238A (zh) * | 2010-12-13 | 2012-07-04 | 原相科技股份有限公司 | 利用物件特征相异性进行多个物件的动态影像辨识方法及系统 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4491875A (en) * | 1980-10-30 | 1985-01-01 | Canon Kabushiki Kaisha | Apparatus and method for tonal image processing |
US4680646A (en) * | 1983-09-05 | 1987-07-14 | Canon Kabushiki Kaisha | Image forming device for reproducing a half-tone image |
US4723173A (en) * | 1984-05-31 | 1988-02-02 | Canon Kabushiki Kaisha | Image processing apparatus |
JPS6129502A (ja) * | 1984-07-20 | 1986-02-10 | タカムラ建設株式会社 | コンクリ−ト打設用型枠 |
US4638369A (en) * | 1984-09-04 | 1987-01-20 | Xerox Corporation | Edge extraction technique |
US5034900A (en) * | 1984-10-05 | 1991-07-23 | Hitachi, Ltd. | Method and apparatus for bit operational process |
DE3686821T2 (de) * | 1985-01-10 | 1993-04-01 | Nippon Telegraph & Telephone | Halbtonbildverarbeitungseinrichtung. |
US5144687A (en) * | 1985-03-02 | 1992-09-01 | Kabushika Kaisha Toshiba | Image processing apparatus including spatial shift variant filter |
EP0717551B1 (de) * | 1986-02-14 | 2000-05-17 | Canon Kabushiki Kaisha | Bildverarbeitungsgerät |
JPH0834543B2 (ja) * | 1986-06-30 | 1996-03-29 | 株式会社リコー | スキャナ |
US4878125A (en) * | 1987-01-08 | 1989-10-31 | Canon Kabushiki Kaisha | Method and apparatus for image processing with fed-back error correction |
JPH0197065A (ja) * | 1987-10-09 | 1989-04-14 | Nec Corp | ファクシミリ装置 |
US5125045A (en) * | 1987-11-20 | 1992-06-23 | Hitachi, Ltd. | Image processing system |
US5079638A (en) * | 1988-07-05 | 1992-01-07 | Minolta Camera Co., Ltd. | Image reading apparatus |
US5097520A (en) * | 1989-01-20 | 1992-03-17 | Ricoh Company, Ltd. | Method of obtaining optimum threshold values |
DE69026846T2 (de) * | 1989-02-10 | 1997-01-09 | Canon Kk | Bildverarbeitungsvorrichtung |
JPH02253765A (ja) * | 1989-03-28 | 1990-10-12 | Toshiba Corp | 画像処理装置 |
JP2769574B2 (ja) * | 1989-08-02 | 1998-06-25 | 石原産業株式会社 | 電子写真画像形成方法 |
US5034990A (en) * | 1989-09-05 | 1991-07-23 | Eastman Kodak Company | Edge enhancement error diffusion thresholding for document images |
DE69029706T2 (de) * | 1989-10-31 | 1997-06-05 | Canon Kk | Bilderzeugungsgerät zur Halbtonwiedergabe |
EP0450852B1 (de) * | 1990-03-27 | 1997-01-22 | Canon Kabushiki Kaisha | Farbbildübertragungsgerät |
US5455873A (en) * | 1990-12-03 | 1995-10-03 | Information International, Inc. | Facsimile dynamic thresholding apparatus and method of use thereof |
US5276535A (en) * | 1991-12-24 | 1994-01-04 | Levien Raphael L | Method and apparatus for halftoning of images using grayscale error diffusion |
US5438633A (en) * | 1991-09-10 | 1995-08-01 | Eastman Kodak Company | Method and apparatus for gray-level quantization |
KR100213472B1 (ko) * | 1991-10-30 | 1999-08-02 | 윤종용 | 화상데이타의 단순2치화 및 의사중간조 혼용처리방법 및 그 장치 |
US5243443A (en) * | 1991-12-06 | 1993-09-07 | Xerox Corporation | Halftoning with error feedback and image dependent enhancement |
US5521989A (en) * | 1993-08-05 | 1996-05-28 | Xerox Corporation | Balanced error diffusion system |
US5467201A (en) * | 1994-05-31 | 1995-11-14 | Xerox Corporation | Iterative error diffusion system |
-
1993
- 1993-11-16 US US08/152,975 patent/US5515180A/en not_active Expired - Lifetime
- 1993-11-22 EP EP93118756A patent/EP0599243B1/de not_active Expired - Lifetime
- 1993-11-22 DE DE69333444T patent/DE69333444T2/de not_active Expired - Lifetime
- 1993-11-22 EP EP99121885A patent/EP0982929B1/de not_active Expired - Lifetime
- 1993-11-22 DE DE69328660T patent/DE69328660T2/de not_active Expired - Lifetime
-
1995
- 1995-05-24 US US08/449,542 patent/US5748794A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5515180A (en) | 1996-05-07 |
US5748794A (en) | 1998-05-05 |
DE69333444T2 (de) | 2005-02-24 |
EP0982929A3 (de) | 2000-09-20 |
EP0599243A2 (de) | 1994-06-01 |
EP0982929A2 (de) | 2000-03-01 |
EP0599243A3 (en) | 1996-12-11 |
EP0982929B1 (de) | 2004-03-03 |
DE69333444D1 (de) | 2004-04-08 |
DE69328660D1 (de) | 2000-06-21 |
EP0599243B1 (de) | 2000-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |