DE3787933T2 - Optimale Halbtonfarbmuster für Rasterabtastbilder. - Google Patents
Optimale Halbtonfarbmuster für Rasterabtastbilder.Info
- Publication number
- DE3787933T2 DE3787933T2 DE87305990T DE3787933T DE3787933T2 DE 3787933 T2 DE3787933 T2 DE 3787933T2 DE 87305990 T DE87305990 T DE 87305990T DE 3787933 T DE3787933 T DE 3787933T DE 3787933 T2 DE3787933 T2 DE 3787933T2
- Authority
- DE
- Germany
- Prior art keywords
- scanned images
- color patterns
- raster scanned
- halftone color
- optimal 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 - 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
- H04N1/46—Colour picture communication systems
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/889,819 US4758886A (en) | 1986-07-24 | 1986-07-24 | Optimal color half-tone patterns for raster-scan images |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3787933D1 DE3787933D1 (de) | 1993-12-02 |
DE3787933T2 true DE3787933T2 (de) | 1994-05-11 |
Family
ID=25395849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE87305990T Expired - Lifetime DE3787933T2 (de) | 1986-07-24 | 1987-07-07 | Optimale Halbtonfarbmuster für Rasterabtastbilder. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4758886A (de) |
EP (1) | EP0254448B1 (de) |
JP (1) | JPH0722347B2 (de) |
KR (1) | KR960007260B1 (de) |
DE (1) | DE3787933T2 (de) |
IL (1) | IL82966A (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4965599A (en) * | 1989-11-13 | 1990-10-23 | Eastman Kodak Company | Scanning apparatus for halftone image screen writing |
US5187594A (en) * | 1990-02-09 | 1993-02-16 | Graphic Edge, Inc. | Method of creating and applying half tone screen patterns |
US5341228A (en) * | 1990-12-04 | 1994-08-23 | Research Corporation Technologies | Method and apparatus for halftone rendering of a gray scale image using a blue noise mask |
US5323247A (en) * | 1990-12-04 | 1994-06-21 | Research Corporation Technologies | Method and apparatus for halftoning and inverse halftoning and the transmission of such images |
US5370976A (en) * | 1992-05-22 | 1994-12-06 | Williamson Printing Corporation | Metallic color printing process |
US5548407A (en) * | 1992-05-22 | 1996-08-20 | Albrecht von Kienlin | Process for electronic processing of multi-colored continuous-tone images |
US5412577A (en) * | 1992-10-28 | 1995-05-02 | Quad/Tech International | Color registration system for a printing press |
US5630363A (en) * | 1995-08-14 | 1997-05-20 | Williamson Printing Corporation | Combined lithographic/flexographic printing apparatus and process |
WO1997047481A1 (en) | 1996-06-14 | 1997-12-18 | Minnesota Mining And Manufacturing Company | Display unit and methods of displaying an image |
US5991513A (en) * | 1997-09-30 | 1999-11-23 | Levien; Raphael L | Method and apparatus for suppressing moire patterns |
US6906825B1 (en) * | 1999-06-14 | 2005-06-14 | Toshiba Tec Kabushiki Kaisha | Image processor and color image processor |
US6798539B1 (en) * | 2000-10-30 | 2004-09-28 | Xerox Corporation | Method for moire-free color halftoning using non-orthogonal cluster screens |
US7110604B2 (en) * | 2001-06-26 | 2006-09-19 | Anoto Ab | Processing of digital images |
US20060023258A1 (en) * | 2004-08-02 | 2006-02-02 | Xerox Corporation. | Method for minimizing boundary defects using halftone classes with matched harmonics |
US8416458B2 (en) * | 2009-11-04 | 2013-04-09 | Xerox Corporation | Rotated halftone screen geometry that avoids beat-based banding |
US9526091B2 (en) * | 2012-03-16 | 2016-12-20 | Intel Corporation | Method and apparatus for coordination of self-optimization functions in a wireless network |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2193722A (en) * | 1936-09-04 | 1940-03-12 | Interchem Corp | Method of color reproduction |
US2136340A (en) * | 1937-02-17 | 1938-11-08 | Interchem Corp | Printing plate |
US2190185A (en) * | 1937-02-17 | 1940-02-13 | Interchem Corp | Printing plate |
US2185139A (en) * | 1937-04-23 | 1939-12-26 | Interchem Corp | Scanning apparatus |
US2185806A (en) * | 1937-04-28 | 1940-01-02 | William G H Finch | Color picture transmission system |
US2294645A (en) * | 1940-07-05 | 1942-09-01 | Interchem Corp | Printing plate |
US2413706A (en) * | 1942-01-09 | 1947-01-07 | Norman R Gunderson | Apparatus for reproduction of pictorial representations |
GB640001A (en) * | 1947-02-24 | 1950-07-12 | Nell William Yelland | Improvements relating to the production of multi-colour printing surfaces |
LU39915A1 (de) * | 1960-04-01 | |||
US3580995A (en) * | 1968-04-29 | 1971-05-25 | Rca Corp | Constant sized halftone dot image generator |
US3629496A (en) * | 1969-12-30 | 1971-12-21 | Litton Systems Inc | Encoding of picture signals in photofacsimile |
US3911480A (en) * | 1972-12-08 | 1975-10-07 | John P Brucker | Generating screened half-tones by scanning |
DE2262824C3 (de) * | 1972-12-22 | 1975-07-10 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur gerasterten Reproduktion farbiger Halbtonbilder im Ein- oder Mehrfarbendruck |
US4084259A (en) * | 1973-11-30 | 1978-04-11 | The Mead Corporation | Apparatus for dot matrix recording |
GB1493924A (en) * | 1974-01-07 | 1977-11-30 | Crosfield Electronics Ltd | Screened image reproduction |
US4196451A (en) * | 1976-05-21 | 1980-04-01 | Xerox Corporation | Electronic halftone generator |
US4193096A (en) * | 1977-04-04 | 1980-03-11 | Xerox Corporation | Half tone encoder/decoder |
US4468706A (en) * | 1979-02-13 | 1984-08-28 | Coulter Systems Corporation | Imaging by varying the placement of elements in the pixels |
JPS55146582A (en) * | 1979-04-27 | 1980-11-14 | Matsushita Electric Ind Co Ltd | Image recording method |
US4439789A (en) * | 1980-04-11 | 1984-03-27 | Coulter Systems Corporation | Binary scan system |
US4350996A (en) * | 1980-04-14 | 1982-09-21 | Scitex Corporation Ltd. | Screened image reproduction |
US4456924A (en) * | 1980-04-14 | 1984-06-26 | Scitex Corporation Ltd. | Screened image reproduction |
EP0047145B1 (de) * | 1980-09-01 | 1988-03-16 | Crosfield Electronics Limited | Verfahren zum Erzeugen einer Halbtonreproduktion |
JPS5762664A (en) * | 1980-10-03 | 1982-04-15 | Ricoh Co Ltd | Binary processing method for analog picture signal |
EP0056829B1 (de) * | 1981-01-24 | 1985-09-04 | DR.-ING. RUDOLF HELL GmbH | Farbdriftfreie Raster für den Mehrfarbendruck |
JPS57129749A (en) * | 1981-02-06 | 1982-08-11 | Fuji Photo Film Co Ltd | Method and device for bringing out medium tone in ink-jet printer |
US4499489A (en) * | 1981-06-08 | 1985-02-12 | Dr. Ing. Rudolf Hell Gmbh | Production of screen printing blocks |
JPS5968245A (ja) * | 1982-10-13 | 1984-04-18 | Ricoh Co Ltd | 多色インクジエツト記録方法 |
-
1986
- 1986-07-24 US US06/889,819 patent/US4758886A/en not_active Expired - Lifetime
-
1987
- 1987-06-23 IL IL82966A patent/IL82966A/xx not_active IP Right Cessation
- 1987-07-07 EP EP87305990A patent/EP0254448B1/de not_active Expired - Lifetime
- 1987-07-07 DE DE87305990T patent/DE3787933T2/de not_active Expired - Lifetime
- 1987-07-21 KR KR1019870007878A patent/KR960007260B1/ko not_active IP Right Cessation
- 1987-07-23 JP JP62184650A patent/JPH0722347B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4758886A (en) | 1988-07-19 |
EP0254448A2 (de) | 1988-01-27 |
JPS6335079A (ja) | 1988-02-15 |
EP0254448A3 (en) | 1990-02-14 |
JPH0722347B2 (ja) | 1995-03-08 |
EP0254448B1 (de) | 1993-10-27 |
DE3787933D1 (de) | 1993-12-02 |
IL82966A (en) | 1991-09-16 |
KR880002366A (ko) | 1988-04-30 |
IL82966A0 (en) | 1987-12-20 |
KR960007260B1 (ko) | 1996-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3787948D1 (de) | Rastereingangsabtaster. | |
DE3787933T2 (de) | Optimale Halbtonfarbmuster für Rasterabtastbilder. | |
DE3564525D1 (en) | Image scanning procedure | |
DE3777760D1 (de) | Farbbildlesegeraet. | |
EP0266430A4 (de) | Bildformung auf gegenstände. | |
DE3576777D1 (de) | Farbbildkopiergeraet. | |
DE69032462D1 (de) | Farbabtaster | |
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DE69002113D1 (de) | Bildabtastsystem mit farbausgleich. | |
DE69020378T2 (de) | Bildabtastvorrichtung. | |
DE3782900D1 (de) | Farbbildherstellungsverfahren. | |
DE3881889T2 (de) | Bildscanner. | |
DE69015997D1 (de) | Fernsehfilmabtaster abgeglichen für negativabtastung. | |
DE3788827T2 (de) | Farbkopiervorrichtung. | |
DE3774518D1 (de) | Farbbildreproduktion. | |
DE3787283D1 (de) | Integrales Eingang-Ausgangssystem für Rastabtast-Druckeinheit. | |
DE3881081T2 (de) | Farbbildkopiervorrichtung. | |
DE69225036D1 (de) | Rastererzeugung zur Halbtonrasterung von Bildern | |
DE69219853D1 (de) | Rastererzeugung zur Halbtonrasterung von Bildern | |
EP0215363A3 (en) | Scanning arrangement for half-tone transmission originals | |
DE3773036D1 (de) | Verfahren zur farbbilderzeugung. | |
GB8723606D0 (en) | Forming halftone dots | |
GB8307007D0 (en) | Raster scanning | |
DE69023066T2 (de) | Bildabtastgerät. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |