FR2556541B1 - Appareil de traitement d'image - Google Patents
Appareil de traitement d'imageInfo
- Publication number
- FR2556541B1 FR2556541B1 FR8418718A FR8418718A FR2556541B1 FR 2556541 B1 FR2556541 B1 FR 2556541B1 FR 8418718 A FR8418718 A FR 8418718A FR 8418718 A FR8418718 A FR 8418718A FR 2556541 B1 FR2556541 B1 FR 2556541B1
- Authority
- FR
- France
- Prior art keywords
- processing apparatus
- image processing
- 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
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
-
- 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
- H04N1/38—Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58231359A JPS60124173A (ja) | 1983-12-09 | 1983-12-09 | 画像処理装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2556541A1 FR2556541A1 (fr) | 1985-06-14 |
FR2556541B1 true FR2556541B1 (fr) | 1995-05-24 |
Family
ID=16922380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8418718A Expired - Lifetime FR2556541B1 (fr) | 1983-12-09 | 1984-12-07 | Appareil de traitement d'image |
Country Status (4)
Country | Link |
---|---|
US (1) | US4672461A (fr) |
JP (1) | JPS60124173A (fr) |
DE (1) | DE3444701C3 (fr) |
FR (1) | FR2556541B1 (fr) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3382485D1 (de) * | 1982-10-08 | 1992-02-06 | Canon Kk | Bildverarbeitungssystem. |
US4802229A (en) * | 1983-04-12 | 1989-01-31 | Canon Kabushiki Kaisha | Image processing system |
US5228099A (en) * | 1984-09-19 | 1993-07-13 | Canon Kabushiki Kaisha | Apparatus for reading a document and processing the image |
US5086486A (en) * | 1984-09-19 | 1992-02-04 | Canon Kabushiki Kaisha | Apparatus for reading a document and processing the image |
US5065257A (en) * | 1985-03-20 | 1991-11-12 | Canon Kabushiki Kaisha | Image processing apparatus with means for compensating for dust., etc., on an original |
US4763200A (en) * | 1985-04-11 | 1988-08-09 | Minolta Camera Kabushiki Kaisha | Image output apparatus |
JPS61262982A (ja) * | 1985-05-17 | 1986-11-20 | Casio Comput Co Ltd | 画像情報認識装置 |
US4870500A (en) * | 1985-09-30 | 1989-09-26 | Canon Kabushiki Kaisha | Image signal processing apparatus |
JPS6282758A (ja) * | 1985-10-07 | 1987-04-16 | Fuji Photo Film Co Ltd | 放射線画像情報読取方法および装置 |
US5592309A (en) * | 1986-05-02 | 1997-01-07 | Scitex Corporation Ltd. | Multiple lens separation scanner |
IL78675A (en) * | 1986-05-02 | 1993-02-21 | Scitex Corp Ltd | Color separation scanner |
US5111308A (en) * | 1986-05-02 | 1992-05-05 | Scitex Corporation Ltd. | Method of incorporating a scanned image into a page layout |
US5347598A (en) * | 1987-03-20 | 1994-09-13 | Canon Kabushiki Kaisha | Image processing apparatus |
US5157516A (en) * | 1987-04-30 | 1992-10-20 | Scitex Corporation Ltd. | Method of incorporating a scanned image into a page layout |
JP2502591B2 (ja) * | 1987-05-13 | 1996-05-29 | 株式会社リコー | 原稿位置検出装置 |
US4755813A (en) * | 1987-06-15 | 1988-07-05 | Xerox Corporation | Screening circuit for screening image pixels |
US4982294A (en) * | 1987-07-24 | 1991-01-01 | Eastman Kodak Company | Apparatus for enhancing and thresholding scanned microfilm images and methods for use therein |
US4853795A (en) * | 1987-07-24 | 1989-08-01 | Eastman Kodak Company | Forward look ahead techniques for tracking background and noise levels in scanned video images |
US4774569A (en) * | 1987-07-24 | 1988-09-27 | Eastman Kodak Company | Method for adaptively masking off a video window in an overscanned image |
US4833722A (en) * | 1987-07-24 | 1989-05-23 | Eastman Kodak Company | Apparatus and methods for locating edges and document boundaries in video scan lines |
JPS6482286A (en) * | 1987-09-25 | 1989-03-28 | Toshiba Corp | Image inclination detector |
US5138674A (en) * | 1987-11-07 | 1992-08-11 | Minolta Camera Kabushiki Kaisha | Image reader capable of detecting blank documents |
US4922350A (en) * | 1988-03-30 | 1990-05-01 | Eastman Kodak Company | Document recognition with forward direction scan for detecting the boundaries of an original document and reverse direction scan for producing recorded image on the original document |
AU6069590A (en) * | 1989-07-14 | 1991-02-22 | David M. Geshwind | A method for routing fax transmissions |
US5150223A (en) * | 1989-11-30 | 1992-09-22 | Eastman Kodak Company | Copier with single pass auto exposure |
US5065443A (en) * | 1989-12-04 | 1991-11-12 | Allen-Bradley Company, Inc. | Image processor with illumination variation compensation |
US5198853A (en) * | 1990-11-16 | 1993-03-30 | Konica Corporation | Document size detection apparatus |
US5850298A (en) * | 1994-03-22 | 1998-12-15 | Ricoh Company, Ltd. | Image processing device eliminating background noise |
US6700684B1 (en) | 1998-01-28 | 2004-03-02 | Fujitsu Limited | Image inputting apparatus |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3790706A (en) * | 1972-05-25 | 1974-02-05 | Boeing Co | Automatic video contrast control circuit |
DE2836571C2 (de) * | 1978-08-21 | 1982-04-15 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur Umwandlung eines Videosignals in ein Schwarz/Weiß-Signal |
FR2437125A1 (fr) * | 1978-09-21 | 1980-04-18 | Cit Alcatel | Dispositif de traitement d'un signal d'analyse d'image |
US4325086A (en) * | 1979-04-20 | 1982-04-13 | Canon Kabushiki Kaisha | Recording device |
DE2922178A1 (de) * | 1979-05-31 | 1980-12-04 | Agfa Gevaert Ag | Verfahren zum kopieren von vorlagen |
FR2462072A1 (fr) * | 1979-07-17 | 1981-02-06 | Agfa Gevaert Ag | Procede pour la collecte d'informations optiques |
US4341460A (en) * | 1979-09-07 | 1982-07-27 | Tokyo Shibaura Denki Kabushiki Kaisha | Electronic copying machine |
JPS56120264A (en) * | 1980-02-28 | 1981-09-21 | Canon Inc | Picture read-in device |
JPS5749842A (en) * | 1980-09-09 | 1982-03-24 | Konan Camera Kenkyusho:Kk | Sampling device for density distribution |
JPS57188177A (en) * | 1981-05-15 | 1982-11-19 | Fuji Xerox Co Ltd | Picture signal processing device |
JPS58202666A (ja) * | 1982-05-21 | 1983-11-25 | Ricoh Co Ltd | 2値化方式 |
US4468704A (en) * | 1982-10-28 | 1984-08-28 | Xerox Corporation | Adaptive thresholder |
-
1983
- 1983-12-09 JP JP58231359A patent/JPS60124173A/ja active Pending
-
1984
- 1984-11-30 US US06/677,095 patent/US4672461A/en not_active Expired - Lifetime
- 1984-12-07 DE DE3444701A patent/DE3444701C3/de not_active Expired - Lifetime
- 1984-12-07 FR FR8418718A patent/FR2556541B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3444701A1 (de) | 1985-06-20 |
US4672461A (en) | 1987-06-09 |
DE3444701C2 (fr) | 1990-08-16 |
FR2556541A1 (fr) | 1985-06-14 |
JPS60124173A (ja) | 1985-07-03 |
DE3444701C3 (de) | 1996-08-14 |
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