GB2111342B - A method for recording a halftone picture electronically - Google Patents
A method for recording a halftone picture electronicallyInfo
- Publication number
- GB2111342B GB2111342B GB08231119A GB8231119A GB2111342B GB 2111342 B GB2111342 B GB 2111342B GB 08231119 A GB08231119 A GB 08231119A GB 8231119 A GB8231119 A GB 8231119A GB 2111342 B GB2111342 B GB 2111342B
- Authority
- GB
- United Kingdom
- Prior art keywords
- recording
- halftone picture
- electronically
- picture electronically
- halftone
- 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
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
- H04N1/46—Colour picture communication systems
- H04N1/52—Circuits or arrangements for halftone screening
-
- 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
- H04N1/4058—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 with details for producing a halftone screen at an oblique angle
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Color Image Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56178883A JPS5880639A (en) | 1981-11-07 | 1981-11-07 | Method for recording screen plate image |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2111342A GB2111342A (en) | 1983-06-29 |
GB2111342B true GB2111342B (en) | 1985-08-21 |
Family
ID=16056359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08231119A Expired GB2111342B (en) | 1981-11-07 | 1982-11-01 | A method for recording a halftone picture electronically |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5880639A (en) |
DE (1) | DE3240697C2 (en) |
FR (1) | FR2516329B1 (en) |
GB (1) | GB2111342B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59129854A (en) * | 1983-01-18 | 1984-07-26 | Dainippon Screen Mfg Co Ltd | Light quantity correcting method in case of scanning and recording of picture |
JPS61186077A (en) * | 1985-02-13 | 1986-08-19 | Fuji Xerox Co Ltd | Picture recording system |
GB8514608D0 (en) * | 1985-06-10 | 1985-07-10 | Crosfield Electronics Ltd | Colour modification in image reproduction systems |
JPH0683374B2 (en) * | 1986-02-14 | 1994-10-19 | 富士写真フイルム株式会社 | Method of forming halftone image |
AU605298B2 (en) * | 1987-05-29 | 1991-01-10 | Digital Equipment Corporation | System for producing dithered images on asymmetric grids |
JPH0769681B2 (en) * | 1987-07-08 | 1995-07-31 | 松下電器産業株式会社 | Halftone dot processor |
EP0430860A3 (en) * | 1989-11-21 | 1993-01-13 | Toyo Ink Mfg. Co., Ltd. | Binarization processing method for multivalued image and method to form density pattern for reproducing binary gradations |
GB9008318D0 (en) * | 1990-04-12 | 1990-06-13 | Crosfield Electronics Ltd | Methods and apparatus for half-tone imaging |
DE69133044T2 (en) * | 1991-02-08 | 2003-03-06 | Adobe Systems, Inc. | Dot size control method for digital halftone screening with multi-cell threshold matrix |
JP2763992B2 (en) * | 1992-09-09 | 1998-06-11 | 大日本スクリーン製造株式会社 | Halftone dot recording device |
US5291296A (en) * | 1992-09-29 | 1994-03-01 | Xerox Corporation | Specific set of rotated screens for digital halftoning |
EP0665673A3 (en) * | 1994-02-01 | 1996-06-12 | Dainippon Screen Mfg | Method and apparatus for producing a halftone image using a threshold matrix. |
JP2003087567A (en) | 2001-06-26 | 2003-03-20 | Fujitsu Ltd | Printing method and apparatus, and binary-form dither matrix pattern |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2012728C3 (en) * | 1970-03-18 | 1974-09-19 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Process for the electro-optical recording of screened halftone images |
GB1495499A (en) * | 1974-01-30 | 1977-12-21 | Crosfield Electronics Ltd | Image reproduction systems |
GB1523032A (en) * | 1976-03-03 | 1978-08-31 | Crosfield Electronics Ltd | Image reproducing apparatus |
DE2827596C2 (en) * | 1978-06-23 | 1984-11-22 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Method and arrangement for the production of screened printing forms |
DE2903062A1 (en) * | 1979-01-26 | 1980-08-07 | Mohn Gmbh Reinhard | Digital control raster scanner - has laser writing head with different spacings for each colour |
-
1981
- 1981-11-07 JP JP56178883A patent/JPS5880639A/en active Granted
-
1982
- 1982-11-01 GB GB08231119A patent/GB2111342B/en not_active Expired
- 1982-11-04 DE DE19823240697 patent/DE3240697C2/en not_active Expired
- 1982-11-05 FR FR8218576A patent/FR2516329B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6236427B2 (en) | 1987-08-06 |
DE3240697C2 (en) | 1986-04-10 |
DE3240697A1 (en) | 1983-05-26 |
FR2516329B1 (en) | 1988-03-11 |
GB2111342A (en) | 1983-06-29 |
JPS5880639A (en) | 1983-05-14 |
FR2516329A1 (en) | 1983-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19951101 |