DE3752315T2 - Bildverarbeitungsgerät - Google Patents
BildverarbeitungsgerätInfo
- Publication number
- DE3752315T2 DE3752315T2 DE3752315T DE3752315T DE3752315T2 DE 3752315 T2 DE3752315 T2 DE 3752315T2 DE 3752315 T DE3752315 T DE 3752315T DE 3752315 T DE3752315 T DE 3752315T DE 3752315 T2 DE3752315 T2 DE 3752315T2
- 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 - Fee Related
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
- H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
- H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
- H04N1/4056—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]
-
- 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
-
- 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
- H04N1/40075—Descreening, i.e. converting a halftone signal into a corresponding continuous-tone signal; Rescreening, i.e. combined descreening and halftoning
-
- 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
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61029071A JP2555315B2 (ja) | 1986-02-14 | 1986-02-14 | 画像処理装置 |
JP61049172A JPS62206965A (ja) | 1986-03-06 | 1986-03-06 | 画像処理装置 |
JP61076680A JPH0834542B2 (ja) | 1986-04-04 | 1986-04-04 | 画像処理装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3752315D1 DE3752315D1 (de) | 2000-06-21 |
DE3752315T2 true DE3752315T2 (de) | 2000-10-26 |
Family
ID=27286413
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3752330T Expired - Fee Related DE3752330T2 (de) | 1986-02-14 | 1987-02-11 | Bildverarbeitungsvorrichtung |
DE3752315T Expired - Fee Related DE3752315T2 (de) | 1986-02-14 | 1987-02-11 | Bildverarbeitungsgerät |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3752330T Expired - Fee Related DE3752330T2 (de) | 1986-02-14 | 1987-02-11 | Bildverarbeitungsvorrichtung |
Country Status (3)
Country | Link |
---|---|
US (1) | US4926268A (de) |
EP (3) | EP0717551B1 (de) |
DE (2) | DE3752330T2 (de) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68927970T2 (de) * | 1988-09-08 | 1997-10-09 | Canon Kk | Punktbilddatenausgabegerät |
EP0411911B1 (de) * | 1989-08-02 | 1996-03-27 | Canon Kabushiki Kaisha | Bildverarbeitungsgerät |
EP0421712B1 (de) * | 1989-10-02 | 1997-05-14 | Canon Kabushiki Kaisha | Bilderzeugungsgerät und Modulationsverfahren |
US5210623A (en) * | 1989-12-21 | 1993-05-11 | Eastman Kodak Company | Apparatus and method for quantizing and/or reconstructing multi-dimensional digital image signals |
US5187592A (en) * | 1990-03-15 | 1993-02-16 | Canon Kabushiki Kaisha | Image communication method and apparatus with selection of binarization method for transmission |
DE69123991T2 (de) * | 1990-03-23 | 1997-05-22 | Canon Kk | Bildverarbeitung mit neuronalem Netzwerk |
US6009193A (en) * | 1990-05-16 | 1999-12-28 | Canon Kabushiki Kaisha | Method and apparatus for converting N-value image to M-value image, for < NM |
US5272544A (en) * | 1990-05-29 | 1993-12-21 | Canon Kabushiki Kaisha | Digital/analog converter and image processing apparatus using the same |
US5563956A (en) * | 1990-08-30 | 1996-10-08 | Olympus Optical Co., Ltd. | Apparatus for filing data used for identifying an individual and for executing bi-level printing and multi-gradation printing on the basis of the data |
US5680226A (en) * | 1990-10-10 | 1997-10-21 | Fuji Xerox Co., Ltd. | Image recording apparatus |
US5404411A (en) * | 1990-12-27 | 1995-04-04 | Xerox Corporation | Bitmap-image pattern matching apparatus for correcting bitmap errors in a printing system |
CA2100064C (en) * | 1991-01-10 | 2001-02-27 | Kenneth C. Knowlton | Image undithering apparatus and method |
JPH04261264A (ja) * | 1991-02-15 | 1992-09-17 | Victor Co Of Japan Ltd | パルス幅変調装置 |
US5239597A (en) * | 1991-02-25 | 1993-08-24 | Samsung Electronics Co., Ltd. | Nearest neighbor dither image processing circuit |
JPH04271564A (ja) * | 1991-02-26 | 1992-09-28 | Fujitsu Ltd | 画像記録装置及び画像記録方法 |
US5495341A (en) * | 1991-03-06 | 1996-02-27 | Canon Kabushiki Kaisha | Image processing apparatus which selects from one of plural generated clock counts |
JPH04316276A (ja) * | 1991-04-16 | 1992-11-06 | Ricoh Co Ltd | 画像形成装置 |
US5467422A (en) * | 1991-08-13 | 1995-11-14 | Konica Corporation | Image forming apparatus with neighboring pixel processing |
DE69215038T2 (de) * | 1991-08-21 | 1997-04-10 | Konishiroku Photo Ind | Abbildungsgerät |
US5241328A (en) * | 1991-09-20 | 1993-08-31 | Eastman Kodak Company | Apparatus and method for thermal printing of finely detailed images of photographic quality |
US5673116A (en) * | 1991-10-03 | 1997-09-30 | Minolta Camera Kabushiki Kaisha | Image forming apparatus wherein data is converted between multi-level data and bi-level data |
US5872636A (en) * | 1991-11-01 | 1999-02-16 | Canon Kabushiki Kaisha | Flexible resolution control and matching in image processing |
JPH05284355A (ja) * | 1992-04-02 | 1993-10-29 | Murata Mach Ltd | 画像データの濃淡度補正回路 |
JPH0630272A (ja) * | 1992-04-17 | 1994-02-04 | Canon Inc | 画像処理装置および画像処理方法 |
US5408329A (en) * | 1992-09-08 | 1995-04-18 | Xerox Corporation | Image enhancement through digital darkness control |
NL9201570A (nl) * | 1992-09-10 | 1994-04-05 | Oce Nederland Bv | Werkwijze voor het bij toevoer van, door een eerste en een tweede signaalbron gegenereerde digitale beeldinformatiesignalen van een eerste soort en onder gebruikmaking van de in genoemde signalen aanwezige informatieinhoud betreffende de dichtheidswaarde, per beeldpunt genereren van beeldinformatiesignalen van een tweede soort ter verkrijging van beeldweergeefsignalen, alsmede een reproductiesysteem voor het uitvoeren van een dergelijke werkwijze. |
JP2800592B2 (ja) * | 1992-10-02 | 1998-09-21 | 村田機械株式会社 | 加工図形データへの工具配置干渉チェック方法 |
US6501492B1 (en) * | 1992-11-13 | 2002-12-31 | Canon Kabushiki Kaisha | Image forming apparatus for outputting image in response to digital image signal |
US5515180A (en) * | 1992-11-24 | 1996-05-07 | Sharp Kabushiki Kaisha | Image processing device |
JP3040896B2 (ja) * | 1993-06-16 | 2000-05-15 | シャープ株式会社 | 画像処理装置 |
US5581292A (en) * | 1993-09-10 | 1996-12-03 | Xerox Corporation | Method and apparatus for enhancing charged area developed regions in a tri-level printing system |
US5504462A (en) * | 1993-09-10 | 1996-04-02 | Xerox Corporation | Apparatus for enhancing pixel addressability in a pulse width and position modulated system |
US5479175A (en) * | 1993-09-10 | 1995-12-26 | Xerox Corporation | Method and apparatus for enhancing discharged area developed regions in a tri-level pringing system |
US5471320A (en) * | 1994-05-11 | 1995-11-28 | Xerox Corporation | Stack filters for 1-to-N bit image processing in electronic printers |
JP2820044B2 (ja) * | 1994-10-28 | 1998-11-05 | 日本電気株式会社 | 画像形成装置 |
JPH08156329A (ja) * | 1994-12-12 | 1996-06-18 | Fuji Xerox Co Ltd | 画像形成装置 |
JPH09150552A (ja) * | 1995-11-30 | 1997-06-10 | Toshiba Corp | 画像形成装置 |
US6346998B2 (en) | 1996-11-20 | 2002-02-12 | Fuji Photo Film Co., Ltd. | Picture image outputting method and photograph finishing system using the method |
ES2309605T3 (es) * | 1996-11-20 | 2008-12-16 | Fujifilm Corporation | Metodo de produccion de imagenes y sistema de acabado de fotografias usando el metodo. |
JPH114352A (ja) * | 1997-06-12 | 1999-01-06 | Canon Inc | 画像処理方法および装置および記録媒体 |
US6975079B2 (en) * | 1997-08-26 | 2005-12-13 | Color Kinetics Incorporated | Systems and methods for controlling illumination sources |
JPH11289454A (ja) * | 1997-11-28 | 1999-10-19 | Canon Inc | 画像処理方法および画像処理装置およびコンピュータが読み出し可能なプログラムを格納した記憶媒体 |
US6222945B1 (en) * | 1998-01-30 | 2001-04-24 | Compaq Computer Corporation | Selective filtering of a dithered image for the purpose of inverse dithering |
US6347160B1 (en) * | 1998-01-30 | 2002-02-12 | Compaq Information Technologies Group, L.P. | Increasing the bit depth of and filtering dithered images for the purpose of inverse dithering |
US6163629A (en) * | 1998-01-30 | 2000-12-19 | Compaq Computer Corporation | Method for low complexity low memory inverse dithering |
US6185334B1 (en) | 1998-01-30 | 2001-02-06 | Compaq Computer Corporation | Method for reconstructing a dithered image |
US6590676B1 (en) * | 1999-05-18 | 2003-07-08 | Electronics For Imaging, Inc. | Image reconstruction architecture |
JP4288398B2 (ja) * | 2000-01-18 | 2009-07-01 | 株式会社ニコン | 画像記録装置、画像再生装置および画像処理プログラムを記録した記録媒体 |
JP2003179749A (ja) * | 2001-12-11 | 2003-06-27 | Fujitsu Ltd | データ変換方法 |
JP3840114B2 (ja) * | 2002-01-22 | 2006-11-01 | キヤノン株式会社 | コントローラ部動作検証システム、コントローラ装置、コントローラ装置に適用される画像データ出力制御方法、プログラム、及び記憶媒体 |
JP4268026B2 (ja) * | 2002-12-03 | 2009-05-27 | 株式会社リコー | 画像形成装置 |
JP4821872B2 (ja) * | 2009-03-23 | 2011-11-24 | コニカミノルタビジネステクノロジーズ株式会社 | 画像処理装置及び画像処理方法 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848087A (en) * | 1973-10-29 | 1974-11-12 | Rca Corp | Optical scanner control system |
US4004079A (en) * | 1975-11-14 | 1977-01-18 | Optronics International, Inc. | Method and apparatus for dual resolution photographic reproduction of line and continuous tone graphic materials |
US4032977A (en) * | 1976-06-03 | 1977-06-28 | Xerox Corporation | Gray scale interpolation technique |
US4194221A (en) * | 1978-12-26 | 1980-03-18 | Xerox Corporation | Automatic multimode continuous halftone line copy reproduction |
US4259694A (en) * | 1979-08-24 | 1981-03-31 | Xerox Corporation | Electronic rescreen technique for halftone pictures |
JPS5691585A (en) * | 1979-12-25 | 1981-07-24 | Fujitsu Ltd | Video signal processing method |
JPS57159172A (en) * | 1981-03-24 | 1982-10-01 | Konishiroku Photo Ind Co Ltd | Image processor |
JPS5811941A (ja) * | 1981-07-16 | 1983-01-22 | Dainippon Screen Mfg Co Ltd | 網目版画像記録装置における絵柄信号と文字信号の処理方法 |
US4473849A (en) * | 1981-12-21 | 1984-09-25 | Image Resource Corporation | System and apparatus for conversion of video signals to film images |
JPS58200669A (ja) * | 1982-05-18 | 1983-11-22 | Ricoh Co Ltd | 画像読取装置 |
US4630125A (en) * | 1983-06-01 | 1986-12-16 | Xerox Corporation | Unscreening of stored digital halftone images |
JPS59223073A (ja) * | 1983-06-01 | 1984-12-14 | Canon Inc | 画像処理装置 |
JPS60102060A (ja) * | 1983-11-09 | 1985-06-06 | Hitachi Ltd | 画像二値化装置 |
JPS60106269A (ja) * | 1983-11-15 | 1985-06-11 | Ricoh Co Ltd | 中間調画像伝送方式 |
JPS60113582A (ja) * | 1983-11-24 | 1985-06-20 | Ricoh Co Ltd | 中間調画像処理方法 |
JPS60160773A (ja) * | 1984-02-01 | 1985-08-22 | Fuji Xerox Co Ltd | 画像読取伝送記録方式 |
US4541116A (en) * | 1984-02-27 | 1985-09-10 | Environmental Research Institute Of Mi | Neighborhood image processing stage for implementing filtering operations |
JPS6110360A (ja) * | 1984-06-26 | 1986-01-17 | Canon Inc | 画像処理装置 |
JPS6123468A (ja) * | 1984-07-11 | 1986-01-31 | Nippon Telegr & Teleph Corp <Ntt> | 画像処理装置 |
US4638369A (en) * | 1984-09-04 | 1987-01-20 | Xerox Corporation | Edge extraction technique |
US4800442A (en) * | 1985-08-15 | 1989-01-24 | Canon Kabushiki Kaisha | Apparatus for generating an image from a digital video signal |
JPH067660B2 (ja) * | 1985-08-29 | 1994-01-26 | キヤノン株式会社 | 光ビ−ム走査装置 |
JP2647366B2 (ja) * | 1985-08-29 | 1997-08-27 | キヤノン株式会社 | 画像処理装置 |
JPH0683358B2 (ja) * | 1985-10-17 | 1994-10-19 | キヤノン株式会社 | 画像情報処理装置の調整方法 |
US4803558A (en) * | 1985-11-15 | 1989-02-07 | Konishiroku Photo Industry Co., Ltd. | Halftone image estimation methods for dither images |
DE3650768T2 (de) * | 1985-11-18 | 2002-09-05 | Canon Kk | Bilderzeugungsgerät |
US4847695A (en) * | 1986-02-06 | 1989-07-11 | Canon Kabushiki Kaisha | Image processing apparatus in which the minimum and maximum widths of a pulse-width modulated signal can be independently adjusted in accordance with predetermined data signals |
US4831392A (en) * | 1986-02-13 | 1989-05-16 | Canon Kabushiki Kaisha | Image processing apparatus using pulse width modulation with improved sensitivity |
US4782398A (en) * | 1986-02-14 | 1988-11-01 | Canon Kabushiki Kaisha | Image processing apparatus |
-
1987
- 1987-02-11 DE DE3752330T patent/DE3752330T2/de not_active Expired - Fee Related
- 1987-02-11 EP EP96200453A patent/EP0717551B1/de not_active Expired - Lifetime
- 1987-02-11 EP EP96200452A patent/EP0717550A3/de not_active Ceased
- 1987-02-11 DE DE3752315T patent/DE3752315T2/de not_active Expired - Fee Related
- 1987-02-11 EP EP87301187A patent/EP0234809B1/de not_active Expired - Lifetime
-
1988
- 1988-12-12 US US07/282,896 patent/US4926268A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3752330T2 (de) | 2001-10-31 |
EP0234809A3 (de) | 1989-03-29 |
EP0234809B1 (de) | 2001-05-16 |
US4926268A (en) | 1990-05-15 |
EP0717551A3 (de) | 1996-10-09 |
EP0234809A2 (de) | 1987-09-02 |
EP0717550A2 (de) | 1996-06-19 |
DE3752330D1 (de) | 2001-06-21 |
EP0717550A3 (de) | 1996-10-09 |
EP0717551B1 (de) | 2000-05-17 |
DE3752315D1 (de) | 2000-06-21 |
EP0717551A2 (de) | 1996-06-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |