DE69115097T2 - Gerät zur Bildverarbeitung. - Google Patents

Gerät zur Bildverarbeitung.

Info

Publication number: DE69115097T2
Authority: DE; Germany
Prior art keywords: image processing; processing device; image; processing
Prior art date: 1990-03-26
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

Application number

DE69115097T

Other languages

English (en)

Other versions

DE69115097D1 (de

Inventor

Yasunori Hashimoto

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Canon Inc

Original Assignee

Canon Inc

Priority date (The priority date 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 date listed.)

1990-03-26

Filing date

1991-03-22

Publication date

1996-05-15

1991-03-22 Application filed by Canon Inc filed Critical Canon Inc

1996-01-18 Application granted granted Critical

1996-01-18 Publication of DE69115097D1 publication Critical patent/DE69115097D1/de

1996-05-15 Publication of DE69115097T2 publication Critical patent/DE69115097T2/de

2011-03-23 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/4105—Bandwidth or redundancy reduction for halftone screened pictures
- 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

DE69115097T 1990-03-26 1991-03-22 Gerät zur Bildverarbeitung. Expired - Fee Related DE69115097T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP2073510A JPH03274963A (ja)	1990-03-26	1990-03-26	フアクシミリ装置

Publications (2)

Publication Number	Publication Date
DE69115097D1 DE69115097D1 (de)	1996-01-18
DE69115097T2 true DE69115097T2 (de)	1996-05-15

Family

ID=13520322

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69115097T Expired - Fee Related DE69115097T2 (de)	1990-03-26	1991-03-22	Gerät zur Bildverarbeitung.

Country Status (4)

Country	Link
US (1)	US5245444A (de)
EP (1)	EP0449528B1 (de)
JP (1)	JPH03274963A (de)
DE (1)	DE69115097T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2806086B2 (ja) *	1991-07-26	1998-09-30	松下電器産業株式会社	画像データ処理装置
JP3082491B2 (ja) *	1992-01-27	2000-08-28	松下電器産業株式会社	文字フォントデータ出力装置
JPH0638031A (ja) *	1992-07-13	1994-02-10	Mita Ind Co Ltd	画像濃度再現方法
US5898796A (en) *	1992-07-21	1999-04-27	Minolta Co., Ltd.	Method of processing image having value of error data controlled based on image characteristic in region to which pixel belongs
JP3305495B2 (ja) *	1994-04-28	2002-07-22	キヤノン株式会社	画像処理装置および画像処理方法
GB2289158B (en) *	1994-05-04	1998-07-15	Sony Uk Ltd	Reproducing data from a disk medium
US6115148A (en) *	1994-06-02	2000-09-05	Canon Kabushiki Kaisha	Image processing apparatus
US5452109A (en) *	1994-08-31	1995-09-19	Eastman Kodak Company	Digital image signal processing apparatus and method for accumulating blocks of signal data from an imager
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
JPH0983790A (ja) *	1995-09-07	1997-03-28	Canon Inc	二値化処理装置
JP2973899B2 (ja) *	1995-11-17	1999-11-08	富士ゼロックス株式会社	画像処理装置
JPH10243191A (ja) *	1997-02-27	1998-09-11	Brother Ind Ltd	コピー装置
US7038818B2 (en) *	1999-12-27	2006-05-02	Ricoh Company, Ltd	Method and apparatus for image processing method, and a computer product
JP3494127B2 (ja) *	2000-05-30	2004-02-03	日本電気株式会社	映像表示装置
CN1475004A (zh) *	2001-01-25	2004-02-11	�ʼҷ��ֵ��޹�˾	在矩阵显示装置上显示图像的方法和装置
US7444027B2 (en) *	2002-11-12	2008-10-28	Hewlett-Packard Development Company, L.P.	Methods, devices, and systems for creating and compressing multi-level halftones
US7639887B2 (en) *	2004-12-14	2009-12-29	Intel Corporation	Error diffusion-based image processing

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS58155481A (ja) *	1982-03-10	1983-09-16	Ricoh Co Ltd	画像２値化処理方式
JPS6091762A (ja) *	1983-10-26	1985-05-23	Canon Inc	画像処理装置
US4743975A (en) *	1985-04-01	1988-05-10	Canon Kabushiki Kaisha	Image processing apparatus
JPS62195982A (ja) *	1986-02-24	1987-08-29	Konishiroku Photo Ind Co Ltd	カラ−画像デ−タの圧縮方法及びその再生方法
US4876610A (en) *	1986-12-25	1989-10-24	Canon Kabushiki Kaisha	Image processing apparatus with binarization-error dispersal
JP2577553B2 (ja) *	1987-01-28	1997-02-05	キヤノン株式会社	端末装置
US4926251A (en) *	1987-04-07	1990-05-15	Kabushiki Kaisha Toshiba	Color image processing apparatus with image corrector
US4843458A (en) *	1987-06-05	1989-06-27	Ricoh Company, Ltd.	Method of processing image information
US4975786A (en) *	1987-12-28	1990-12-04	Canon Kabushiki Kaisha	Image processing method and apparatus with error diffusion capability
US4969052A (en) *	1988-05-11	1990-11-06	Canon Kabushiki Kaisha	Image processing method and apparatus
JPH088695B2 (ja) *	1988-06-20	1996-01-29	富士写真フイルム株式会社	ハードコピィ用シミュレータ
US5107332A (en) *	1989-05-17	1992-04-21	Hewlett-Packard Company	Method and system for providing closed loop color control between a scanned color image and the output of a color printer
JPH0380767A (ja) *	1989-08-24	1991-04-05	Ricoh Co Ltd	画像の階調記録装置
JP2505889B2 (ja) *	1989-08-31	1996-06-12	キヤノン株式会社	画像処理装置
US5031050A (en) *	1990-02-26	1991-07-09	Hewlett-Packard Company	Method and system for reproducing monochromatic and color images using ordered dither and error diffusion

1990
- 1990-03-26 JP JP2073510A patent/JPH03274963A/ja active Pending
1991
- 1991-03-20 US US07/673,122 patent/US5245444A/en not_active Expired - Lifetime
- 1991-03-22 EP EP91302524A patent/EP0449528B1/de not_active Expired - Lifetime
- 1991-03-22 DE DE69115097T patent/DE69115097T2/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
JPH03274963A (ja)	1991-12-05
US5245444A (en)	1993-09-14
DE69115097D1 (de)	1996-01-18
EP0449528B1 (de)	1995-12-06
EP0449528A2 (de)	1991-10-02
EP0449528A3 (en)	1992-02-19

Legal Events

Date	Code	Title	Description
1997-01-09	8364	No opposition during term of opposition
2011-01-20	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE69114100D1 (de)	1995-11-30	Bildverarbeitungsgerät.
DE69023618D1 (de)	1995-12-21	Bildverarbeitungsvorrichtung.
DE69103744D1 (de)	1994-10-06	Bildverarbeitungseinrichtung.
DE69132076T2 (de)	2000-08-24	Vorrichtung zur Bildverarbeitung
DE69127427D1 (de)	1997-10-02	Bildverarbeitungsvorrichtung
DE69231050T2 (de)	2000-09-14	Gerät zur Bildverarbeitung
DE69132625T2 (de)	2001-10-31	Gerät zur Bildverarbeitung
DE69125414T2 (de)	1997-08-28	Bildverarbeitungsgerät
DE69023457T2 (de)	1996-06-27	Bildverarbeitungsgerät.
DE69126457T2 (de)	1997-11-06	Bildverarbeitungsvorrichtung
DE69020622T2 (de)	1995-11-30	Bildverarbeitungsgerät.
DE69126250T2 (de)	1997-10-09	Vorrichtung zur Bildverarbeitung
DE69115097T2 (de)	1996-05-15	Gerät zur Bildverarbeitung.
DE69016123T2 (de)	1995-05-24	Bildverarbeitungsgerät.
DE69203751T2 (de)	1995-12-21	Bildverarbeitungsgerät.
DE69128733T2 (de)	1998-04-30	Bildverarbeitungsgerät
DE69128211D1 (de)	1998-01-02	Bildverarbeitungsvorrichtung
DE69126852D1 (de)	1997-08-21	Bildverarbeitungsgerät
DE69123196D1 (de)	1997-01-02	Bildverarbeitungsgerät
DE69114581T2 (de)	1996-03-28	Vorrichtung zur Bilderzeugung.
DE69125763T2 (de)	1997-09-25	Bildverarbeitungsgerät
DE69124290D1 (de)	1997-03-06	Bildverarbeitungsgerät
DE69020413D1 (de)	1995-08-03	Bildverarbeitungsgerät.
DE478442T1 (de)	1992-09-03	Fingerabdruckbildverarbeitungsvorrichtung.
DE69009606T2 (de)	1995-01-12	Bildverarbeitungseinrichtung.