DE3785290D1 - Bildsignalverarbeitungsgeraet. - Google Patents
Bildsignalverarbeitungsgeraet.Info
- Publication number
- DE3785290D1 DE3785290D1 DE8787309231T DE3785290T DE3785290D1 DE 3785290 D1 DE3785290 D1 DE 3785290D1 DE 8787309231 T DE8787309231 T DE 8787309231T DE 3785290 T DE3785290 T DE 3785290T DE 3785290 D1 DE3785290 D1 DE 3785290D1
- Authority
- DE
- Germany
- Prior art keywords
- processing device
- signal processing
- image signal
- image
- signal
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2059—Display of intermediate tones using error diffusion
-
- 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
- H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
- H04N1/4052—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61247755A JPH0666873B2 (ja) | 1986-10-17 | 1986-10-17 | 画像信号処理装置 |
JP61247761A JPH0666874B2 (ja) | 1986-10-17 | 1986-10-17 | 画像信号処理装置 |
JP61247756A JPH0722333B2 (ja) | 1986-10-17 | 1986-10-17 | 画像信号処理装置 |
JP61304245A JPH0666875B2 (ja) | 1986-12-19 | 1986-12-19 | 画像信号処理装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3785290D1 true DE3785290D1 (de) | 1993-05-13 |
DE3785290T2 DE3785290T2 (de) | 1993-07-22 |
Family
ID=27478081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787309231T Expired - Lifetime DE3785290T2 (de) | 1986-10-17 | 1987-10-19 | Bildsignalverarbeitungsgeraet. |
Country Status (3)
Country | Link |
---|---|
US (1) | US4890167A (de) |
EP (1) | EP0264302B1 (de) |
DE (1) | DE3785290T2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924322A (en) * | 1988-03-18 | 1990-05-08 | Matsushita Electric Industrial Co., Ltd. | Bi-level image display signal processing apparatus |
US5086484A (en) * | 1988-08-24 | 1992-02-04 | Canon Kabushiki Kaisha | Image processing apparatus with fixed or variable threshold |
US5107346A (en) * | 1988-10-14 | 1992-04-21 | Bowers Imaging Technologies, Inc. | Process for providing digital halftone images with random error diffusion |
EP0378780B1 (de) * | 1989-01-13 | 1994-05-04 | International Business Machines Corporation | Halbtonbilder mit Fehlerübertragsfortpflanzung mit einer mit Zeit veränderlichen Phasenverschiebung |
US5254982A (en) * | 1989-01-13 | 1993-10-19 | International Business Machines Corporation | Error propagated image halftoning with time-varying phase shift |
US5053887A (en) * | 1989-06-27 | 1991-10-01 | Ibm Corporation | Technique for producing a fine grained dithered halftone image having an increased number of gray levels |
WO1991006172A1 (en) * | 1989-10-16 | 1991-05-02 | Bowers Imaging Technologies, Inc. | Process for providing digital halftone images with random error diffusion |
US5051841A (en) * | 1989-10-16 | 1991-09-24 | Bowers Imaging Technologies, Inc. | Process for providing digital halftone images with random error diffusion |
BE1003276A3 (nl) * | 1990-01-09 | 1992-02-11 | Aesthedes N V | Werkwijze en inrichting voor het genereren van een lithografisch raster. |
US5172247A (en) * | 1990-10-24 | 1992-12-15 | Eastman Kodak Company | High speed digital error diffusion process for continuous tone image-to-binary image conversion |
US5210602A (en) * | 1991-02-25 | 1993-05-11 | International Business Machines Corporation | Coupled-color error diffusion |
JP3176123B2 (ja) * | 1991-06-07 | 2001-06-11 | キヤノン株式会社 | 記録装置および該装置の駆動データ形成方法 |
US5130823A (en) * | 1991-06-27 | 1992-07-14 | Cactus | Error diffusion system |
US5260807A (en) * | 1992-06-05 | 1993-11-09 | Eastman Kodak Company | Method and apparatus for imbedding controlled structure for gray scale rendering |
US5519791A (en) * | 1993-01-11 | 1996-05-21 | Canon, Inc. | Block parallel error diffusion method and apparatus |
US5553165A (en) * | 1993-01-11 | 1996-09-03 | Canon, Inc. | Parallel error diffusion method and apparatus |
EP0707302B1 (de) * | 1994-10-06 | 2003-02-26 | Fujitsu General Limited | Grauskalaverarbeitung unter Verwendung eines Fehlerdiffusionsverfahren |
JP3089960B2 (ja) * | 1994-11-17 | 2000-09-18 | 株式会社富士通ゼネラル | 誤差拡散回路 |
JP3139312B2 (ja) * | 1994-11-25 | 2001-02-26 | 株式会社富士通ゼネラル | ディスプレイ駆動方法および装置 |
JP3354741B2 (ja) * | 1995-04-17 | 2002-12-09 | 富士通株式会社 | 中間調表示方法及び中間調表示装置 |
US6307647B1 (en) * | 1995-05-05 | 2001-10-23 | Lexmark International, Inc. | Digital halftoning with error diffusion |
JP3322809B2 (ja) | 1995-10-24 | 2002-09-09 | 富士通株式会社 | ディスプレイ駆動方法及び装置 |
JP2994631B2 (ja) * | 1997-12-10 | 1999-12-27 | 松下電器産業株式会社 | Pdp表示の駆動パルス制御装置 |
DE69936368T2 (de) * | 1998-09-22 | 2007-10-31 | Matsushita Electric Industrial Co., Ltd., Kadoma | Verbessertes Anzeigeverfahren für Bilder mit Graustufen |
US6469632B1 (en) * | 1999-10-22 | 2002-10-22 | Visteon Global Tech., Inc. | Component selector assembly |
US6781719B2 (en) * | 2002-06-27 | 2004-08-24 | Hewlett-Packard Development Company, L.P. | Halftone imaging with reduced dot isolation |
US8289233B1 (en) | 2003-02-04 | 2012-10-16 | Imaging Systems Technology | Error diffusion |
US8305301B1 (en) | 2003-02-04 | 2012-11-06 | Imaging Systems Technology | Gamma correction |
US8248328B1 (en) | 2007-05-10 | 2012-08-21 | Imaging Systems Technology | Plasma-shell PDP with artifact reduction |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0031247B1 (de) * | 1979-12-20 | 1984-03-14 | Cambridge Consultants Limited | Vorrichtung und Verfahren zur Herstellung eines aus Streupunkten bestehenden Halbtonbildes aus einem Normalbild |
US4449150A (en) * | 1981-01-19 | 1984-05-15 | Ricoh Company, Ltd. | Method of processing medium tone picture |
JPS6046665A (ja) * | 1983-08-25 | 1985-03-13 | Toshiyuki Sakai | 濃淡画像の2値表現方式 |
JPS615677A (ja) * | 1984-06-20 | 1986-01-11 | Matsushita Electric Ind Co Ltd | 濃淡画像記録方法 |
US4692811A (en) * | 1984-07-25 | 1987-09-08 | Matsushita Electric Industrial Co., Ltd. | Apparatus for processing image signal |
US4654721A (en) * | 1985-04-12 | 1987-03-31 | International Business Machines Corporation | System for reproducing multi-level digital images on a bi-level printer of fixed dot size |
-
1987
- 1987-10-16 US US07/110,082 patent/US4890167A/en not_active Expired - Lifetime
- 1987-10-19 DE DE8787309231T patent/DE3785290T2/de not_active Expired - Lifetime
- 1987-10-19 EP EP87309231A patent/EP0264302B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0264302A2 (de) | 1988-04-20 |
US4890167A (en) | 1989-12-26 |
DE3785290T2 (de) | 1993-07-22 |
EP0264302A3 (en) | 1989-09-27 |
EP0264302B1 (de) | 1993-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) |