IT1121443B - Procedimento e dispositivo per la preparazione di matrici retinate per stampa - Google Patents
Procedimento e dispositivo per la preparazione di matrici retinate per stampaInfo
- Publication number
- IT1121443B IT1121443B IT23661/79A IT2366179A IT1121443B IT 1121443 B IT1121443 B IT 1121443B IT 23661/79 A IT23661/79 A IT 23661/79A IT 2366179 A IT2366179 A IT 2366179A IT 1121443 B IT1121443 B IT 1121443B
- Authority
- IT
- Italy
- Prior art keywords
- dies
- screened
- printing
- procedure
- preparation
- Prior art date
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
- H04N1/4058—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Color Image Communication Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Screen Printers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2827596A DE2827596C2 (de) | 1978-06-23 | 1978-06-23 | Verfahren und Anordnung zur Herstellung gerasterter Druckformen |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7923661A0 IT7923661A0 (it) | 1979-06-18 |
IT1121443B true IT1121443B (it) | 1986-04-02 |
Family
ID=6042572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23661/79A IT1121443B (it) | 1978-06-23 | 1979-06-18 | Procedimento e dispositivo per la preparazione di matrici retinate per stampa |
Country Status (14)
Country | Link |
---|---|
JP (1) | JPS556393A (sv) |
AU (1) | AU529655B2 (sv) |
CA (1) | CA1127090A (sv) |
CH (1) | CH643373A5 (sv) |
DD (1) | DD144468A5 (sv) |
DE (1) | DE2827596C2 (sv) |
ES (1) | ES481815A1 (sv) |
FR (1) | FR2429455A1 (sv) |
GB (1) | GB2026283B (sv) |
IL (1) | IL57630A (sv) |
IT (1) | IT1121443B (sv) |
NL (1) | NL182986C (sv) |
SE (1) | SE435107B (sv) |
SU (1) | SU1463125A3 (sv) |
Families Citing this family (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3176685D1 (en) * | 1980-09-01 | 1988-04-21 | Crosfield Electronics Ltd | A method of producing a half-tone reproduction |
JPS57120937A (en) * | 1981-01-21 | 1982-07-28 | Dainippon Screen Mfg Co Ltd | Formation of halftone plate image |
JPS57171337A (en) * | 1981-04-14 | 1982-10-21 | Dainippon Screen Mfg Co Ltd | Production of halftone plate picture |
US4499489A (en) * | 1981-06-08 | 1985-02-12 | Dr. Ing. Rudolf Hell Gmbh | Production of screen printing blocks |
JPS5880639A (ja) * | 1981-11-07 | 1983-05-14 | Dainippon Screen Mfg Co Ltd | 網目版画像の記録方法 |
EP0079974B1 (de) * | 1981-11-20 | 1987-02-04 | DR.-ING. RUDOLF HELL GmbH | Rastersystem für den Mehrfarbendruck |
DE3312273C3 (de) * | 1982-04-06 | 1996-03-21 | Canon Kk | Bildverarbeitungsgerät |
US5666444A (en) * | 1982-04-06 | 1997-09-09 | Canon Kabushiki Kaisha | Image processing apparatus |
JPS58182372A (ja) * | 1982-04-20 | 1983-10-25 | Canon Inc | プリンタスクリ−ン角設定方法 |
JPS59122080A (ja) * | 1982-12-27 | 1984-07-14 | Leo Giken:Kk | 網点画像の発生方法 |
JPS59161981A (ja) * | 1983-03-06 | 1984-09-12 | Canon Inc | 画像処理装置 |
GB8318835D0 (en) * | 1983-07-12 | 1983-08-10 | Crosfield Electronics Ltd | Half-tone image reproducing |
DE3373764D1 (en) * | 1983-11-14 | 1987-10-22 | Hell Rudolf Dr Ing Gmbh | Method and apparatus for manufacturing screened printing forms |
JPS60213170A (ja) * | 1984-04-06 | 1985-10-25 | Dainippon Screen Mfg Co Ltd | 画像走査記録装置における網点パタ−ン発生方法 |
AT381401B (de) * | 1984-06-04 | 1986-10-10 | Weidinger Wolfgang | Verfahren zur herstellung von rasterfarbauszuegen und deren weiterverarbeitung auf eine flexodruckform |
JPH0657049B2 (ja) * | 1984-12-07 | 1994-07-27 | 大日本スクリ−ン製造株式会社 | 網点形成方法 |
JPH0614187B2 (ja) * | 1984-10-11 | 1994-02-23 | 株式会社デイ・エス・スキヤナ− | 網点フィルム作成装置 |
DE3614790A1 (de) * | 1986-05-02 | 1987-11-05 | Hell Rudolf Dr Ing Gmbh | Verfahren und einrichtung zur elektronischen seitenkombination fuer die reproduktionstechnik |
GB8628238D0 (en) * | 1986-11-26 | 1986-12-31 | Crosfield Electronics Ltd | Generating half-tone representations |
JPS6444681A (en) * | 1987-08-12 | 1989-02-17 | Fuji Photo Film Co Ltd | Dot screen forming method |
DE3738014A1 (de) * | 1987-11-09 | 1989-05-18 | Winrich Dipl Ing Gall | Verfahren zur erzeugung farbiger bilder auf einer traegerflaeche |
JPH022042A (ja) * | 1987-12-18 | 1990-01-08 | Contex Graphic Syst Inc | 中間色印字システム |
JPH01228848A (ja) * | 1988-03-10 | 1989-09-12 | Canon Inc | 画像形成装置 |
EP0585961A1 (en) * | 1988-05-18 | 1994-03-09 | Fuji Photo Film Co., Ltd. | A light beam scanning apparatus for forming a halftone screen |
US5172248A (en) * | 1988-05-18 | 1992-12-15 | Fuji Photo Film Co., Ltd. | Method for forming halftone screen and apparatus therefor |
US4916530A (en) * | 1988-09-02 | 1990-04-10 | Itek Graphix Corp. | High resolution halftone dot generator system including LED array |
US4924301A (en) * | 1988-11-08 | 1990-05-08 | Seecolor Corporation | Apparatus and methods for digital halftoning |
JPH0691620B2 (ja) * | 1988-11-15 | 1994-11-14 | 大日本スクリーン製造株式会社 | カラー画像の網目版画像記録方法 |
US4977458A (en) * | 1988-11-16 | 1990-12-11 | Eastman Kodak Company | Apparatus for addressing a font to suppress Moire patterns occurring thereby and a method for use therein |
US4918622A (en) * | 1988-11-16 | 1990-04-17 | Eastman Kodak Company | Electronic graphic arts screener |
JPH0666880B2 (ja) * | 1988-11-17 | 1994-08-24 | 大日本スクリーン製造株式会社 | 網目版画像形成方法 |
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 |
EP0418844B1 (en) * | 1989-09-20 | 1997-12-03 | Toyo Ink Mfg. Co., Ltd. | Color image information processing method |
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 |
DE69120591T2 (de) * | 1990-04-25 | 1997-02-13 | Bayer Ag | Verfahren zum Aufbrechen der Symmetrie von Matrixelementen in einem elektronischen Rasterungsprozess |
JP2598723B2 (ja) * | 1990-06-28 | 1997-04-09 | 大日本スクリーン製造株式会社 | 網点画像作成装置 |
US5264926A (en) * | 1990-09-14 | 1993-11-23 | Minnesota Mining And Manufacturing Company | Perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation |
US5323245A (en) * | 1990-09-14 | 1994-06-21 | Minnesota Mining And Manufacturing Company | Perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation |
US5583660A (en) * | 1990-09-14 | 1996-12-10 | Minnesota Mining And Manufacturing Company | Non-perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation |
US5253084A (en) * | 1990-09-14 | 1993-10-12 | Minnesota Mining And Manufacturing Company | General kernel function for electronic halftone generation |
US5258832A (en) * | 1990-09-14 | 1993-11-02 | Minnesota Mining And Manufacturing Company | Non-perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation |
US5221971A (en) * | 1990-11-21 | 1993-06-22 | Polaroid Corporation | Area modulation printing apparatus |
DE69133044T2 (de) * | 1991-02-08 | 2003-03-06 | Adobe Systems, Inc. | Punktgrössensteuerverfahren bei digitaler Halbtonrasterung mit mehrzelligen Schwellenmatrix |
DE4107703C2 (de) * | 1991-03-09 | 1994-07-21 | Hell Ag Linotype | Verfahren und Vorrichtung zur Aufzeichnung gerasterter Bilder |
DE4108253C2 (de) * | 1991-03-14 | 1995-04-27 | Hell Ag Linotype | Verfahren und Anordnung zur Herstellung von gerasterten Farbauszügen und Druckformen |
JPH077624A (ja) * | 1991-09-09 | 1995-01-10 | Mitsubishi Paper Mills Ltd | 網点画像記録方法 |
DE4205085A1 (de) * | 1992-02-17 | 1993-08-26 | Mannesmann Ag | Verfahren und schaltung zum erzeugen von bild-informationen (pixmaps) |
JP2759186B2 (ja) * | 1992-10-21 | 1998-05-28 | 大日本スクリーン製造株式会社 | 多色網目版画像作成方法 |
US5572600A (en) * | 1993-06-22 | 1996-11-05 | Nec Corporation | Color image processing apparatus capable of suppressing moire |
DE69425244T2 (de) * | 1994-04-27 | 2001-01-25 | Agfa-Gevaert N.V., Mortsel | Tonabhängige Rosettenstrukturen bei der Mehrschichthalbtonrasterung durch Phasenmodulation |
US6361697B1 (en) | 1995-01-10 | 2002-03-26 | William S. Coury | Decontamination reactor system and method of using same |
US6117334A (en) * | 1995-01-10 | 2000-09-12 | Coury; William S. | Decontamination reactor system and method of using same |
JPH08227147A (ja) * | 1995-02-21 | 1996-09-03 | Dainippon Screen Mfg Co Ltd | 網点作成方法および装置 |
DE19722697A1 (de) * | 1997-05-30 | 1998-12-03 | Heidelberger Druckmasch Ag | Verfahren zur digitalen Rasterung von Halbtonbildern mit Rastern beliebiger Rasterweiten und Rasterwinkel |
DE10022225B4 (de) * | 2000-05-08 | 2015-12-17 | Heidelberger Druckmaschinen Ag | Mehrstufen-Rasterung mit Rastern beliebiger Rasterweiten und Rasterwinkel |
JP2002356008A (ja) * | 2001-02-02 | 2002-12-10 | Ricoh Co Ltd | 画像形成装置及び方法 |
EP1241869B1 (en) * | 2001-03-14 | 2010-08-11 | Ricoh Company, Ltd. | Light-emission modulation having effective scheme of creating gray scale on image |
DE10261004B4 (de) * | 2002-12-24 | 2009-03-26 | Heidelberger Druckmaschinen Ag | Verfahren zur Anwendung von Zufallszahlen bei der Rasterung von Bilddaten |
ATE492117T1 (de) * | 2007-06-06 | 2011-01-15 | Weidlich Ernst Rudolf Dr | Verfahren zum gravieren einer druckform mittels laserlicht |
JP2009218736A (ja) | 2008-03-07 | 2009-09-24 | Canon Inc | 画像形成装置及び画像形成方法 |
DE102009042374A1 (de) | 2008-10-20 | 2010-04-22 | Heidelberger Druckmaschinen Ag | Verfahren zur digitalen Rasterung von Halbtonbildern |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4084183A (en) * | 1970-03-18 | 1978-04-11 | Dr. Ing. Rudolf Hell Gmbh. | Method for the electro-optical reproduction of half-tone pictures |
DE2012728C3 (de) * | 1970-03-18 | 1974-09-19 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur elektrooptischen Aufzeichnung von gerasterten Halbtonbildern |
US3911480A (en) * | 1972-12-08 | 1975-10-07 | John P Brucker | Generating screened half-tones by scanning |
JPS5340292B2 (sv) * | 1973-08-31 | 1978-10-26 | ||
GB1495499A (en) * | 1974-01-30 | 1977-12-21 | Crosfield Electronics Ltd | Image reproduction systems |
DE2646926B2 (de) * | 1976-10-18 | 1979-03-29 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur Änderung der bildpunktmäBigen Zerlegung von Halbtonbildern beim Übergang von der Reproduktion zur Aufzeichnung |
-
1978
- 1978-06-23 DE DE2827596A patent/DE2827596C2/de not_active Expired
-
1979
- 1979-06-18 IT IT23661/79A patent/IT1121443B/it active
- 1979-06-18 DD DD79213696A patent/DD144468A5/de unknown
- 1979-06-21 FR FR7915989A patent/FR2429455A1/fr active Granted
- 1979-06-21 CH CH579379A patent/CH643373A5/de not_active IP Right Cessation
- 1979-06-21 SE SE7905507A patent/SE435107B/sv not_active IP Right Cessation
- 1979-06-22 JP JP7822979A patent/JPS556393A/ja active Granted
- 1979-06-22 NL NLAANVRAGE7904904,A patent/NL182986C/xx not_active IP Right Cessation
- 1979-06-22 AU AU48311/79A patent/AU529655B2/en not_active Ceased
- 1979-06-22 CA CA330,359A patent/CA1127090A/en not_active Expired
- 1979-06-22 IL IL57630A patent/IL57630A/xx unknown
- 1979-06-22 ES ES481815A patent/ES481815A1/es not_active Expired
- 1979-06-22 SU SU792788603A patent/SU1463125A3/ru active
- 1979-06-25 GB GB7922085A patent/GB2026283B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT7923661A0 (it) | 1979-06-18 |
SE7905507L (sv) | 1979-12-24 |
NL182986B (nl) | 1988-01-18 |
IL57630A (en) | 1982-03-31 |
ES481815A1 (es) | 1980-07-01 |
IL57630A0 (en) | 1979-10-31 |
AU529655B2 (en) | 1983-06-16 |
NL7904904A (nl) | 1979-12-28 |
CH643373A5 (de) | 1984-05-30 |
AU4831179A (en) | 1980-01-03 |
SU1463125A3 (ru) | 1989-02-28 |
NL182986C (nl) | 1988-06-16 |
GB2026283A (en) | 1980-01-30 |
JPH0335867B2 (sv) | 1991-05-29 |
DE2827596C2 (de) | 1984-11-22 |
GB2026283B (en) | 1983-01-06 |
FR2429455A1 (fr) | 1980-01-18 |
DE2827596A1 (de) | 1980-02-07 |
FR2429455B1 (sv) | 1984-10-19 |
CA1127090A (en) | 1982-07-06 |
JPS556393A (en) | 1980-01-17 |
DD144468A5 (de) | 1980-10-15 |
SE435107B (sv) | 1984-09-03 |
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