DE68923110D1 - Vermeiden des Verschwindens von dünnen Linien in Bildreduzierverfahren. - Google Patents
Vermeiden des Verschwindens von dünnen Linien in Bildreduzierverfahren.Info
- Publication number
- DE68923110D1 DE68923110D1 DE68923110T DE68923110T DE68923110D1 DE 68923110 D1 DE68923110 D1 DE 68923110D1 DE 68923110 T DE68923110 T DE 68923110T DE 68923110 T DE68923110 T DE 68923110T DE 68923110 D1 DE68923110 D1 DE 68923110D1
- Authority
- DE
- Germany
- Prior art keywords
- disappearance
- avoiding
- thin lines
- image reduction
- reduction processes
- 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 - Fee Related
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
-
- 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
- H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
- H04N1/393—Enlarging or reducing
- H04N1/3935—Enlarging or reducing with modification of image resolution, i.e. determining the values of picture elements at new relative positions
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63063802A JP2588742B2 (ja) | 1988-03-18 | 1988-03-18 | 画像縮小装置及び方法 |
JP63213673A JP2588758B2 (ja) | 1988-08-30 | 1988-08-30 | 画像縮小装置及び方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68923110D1 true DE68923110D1 (de) | 1995-07-27 |
DE68923110T2 DE68923110T2 (de) | 1995-10-26 |
Family
ID=26404924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68923110T Expired - Fee Related DE68923110T2 (de) | 1988-03-18 | 1989-03-17 | Vermeiden des Verschwindens von dünnen Linien in Bildreduzierverfahren. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4930021A (de) |
EP (1) | EP0333496B1 (de) |
KR (1) | KR920008904B1 (de) |
CA (1) | CA1306052C (de) |
DE (1) | DE68923110T2 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5083216A (en) * | 1988-12-27 | 1992-01-21 | Kabushiki Kaisha Toshiba | Image forming apparatus for forming an image according to magnification |
JPH02177766A (ja) * | 1988-12-28 | 1990-07-10 | Canon Inc | 2値画像の階層的符号化方式 |
JPH02217897A (ja) * | 1989-02-20 | 1990-08-30 | Hitachi Ltd | 画素密度変換方式 |
US5054099A (en) * | 1989-02-23 | 1991-10-01 | Nippon Telegraph And Telephone Corporation | Binary image reduction method |
JP2787832B2 (ja) * | 1989-06-30 | 1998-08-20 | キヤノン株式会社 | 画像縮小方法 |
JP2767933B2 (ja) * | 1989-11-14 | 1998-06-25 | ソニー株式会社 | 画素数変換回路 |
DE69121439T2 (de) * | 1990-03-19 | 1997-01-09 | Canon Kk | Verfahren und Gerät zur Bildverarbeitung |
US5680225A (en) * | 1991-02-14 | 1997-10-21 | Canon Kabushiki Kaisha | Image reduction with fine-line protection |
JP2625045B2 (ja) * | 1991-04-05 | 1997-06-25 | 大日本スクリーン製造株式会社 | 画像処理装置 |
JP2771712B2 (ja) * | 1991-06-10 | 1998-07-02 | キヤノン株式会社 | 画素密度変換装置 |
EP0526881B1 (de) * | 1991-08-06 | 2002-02-06 | Canon Kabushiki Kaisha | Dreidimensionales Modellverarbeitungsverfahren und -gerät |
JPH05268462A (ja) * | 1992-03-19 | 1993-10-15 | Mitsubishi Electric Corp | 画像処理装置 |
JPH05334427A (ja) * | 1992-06-03 | 1993-12-17 | Hitachi Ltd | 画像の拡大縮小方法 |
JP2954426B2 (ja) * | 1992-06-26 | 1999-09-27 | キヤノン株式会社 | 画像処理方法及び装置 |
US5838838A (en) * | 1996-07-19 | 1998-11-17 | Hewlett-Packard Company | Down-scaling technique for bi-level images |
JP3303818B2 (ja) * | 1999-01-27 | 2002-07-22 | 日本電気株式会社 | 映像表示方法、及び映像表示システム |
SG92628A1 (en) | 1999-02-13 | 2002-11-19 | Newstakes Inc | A method and apparatus for converting video to multiple mark-up-language presentations |
TWI510075B (zh) * | 2011-11-25 | 2015-11-21 | Novatek Microelectronics Corp | 偵測產品圖案消失的方法與電路 |
JP5990217B2 (ja) * | 2014-05-21 | 2016-09-07 | キヤノン株式会社 | 画像処理装置、画像形成装置、およびそれらの制御方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4275450A (en) * | 1979-08-01 | 1981-06-23 | Xerox Corporation | Magnification/demagnification apparatus and method |
JPS60183883A (ja) * | 1984-03-02 | 1985-09-19 | Canon Inc | 画像処理装置 |
JPH0685556B2 (ja) * | 1984-03-30 | 1994-10-26 | 大日本スクリ−ン製造株式会社 | 画像走査記録装置における倍率変換方法 |
JPS60218974A (ja) * | 1984-04-16 | 1985-11-01 | Canon Inc | フアクシミリ装置 |
JPS61147668A (ja) * | 1984-12-21 | 1986-07-05 | Nippon Telegr & Teleph Corp <Ntt> | 画像の縮小変換法 |
DE3545157A1 (de) * | 1985-12-20 | 1987-06-25 | Philips Patentverwaltung | Verfahren und schaltungsanordnung zur aufloesungsumwandlung von binaeren pseudo-halbtonbildern |
JP2525768B2 (ja) * | 1986-02-25 | 1996-08-21 | 日本電信電話株式会社 | 画像の縮小変換方法 |
JPH0793676B2 (ja) * | 1987-02-12 | 1995-10-09 | 株式会社日立製作所 | 多値画像変倍方法 |
-
1989
- 1989-03-16 CA CA000593928A patent/CA1306052C/en not_active Expired - Lifetime
- 1989-03-17 DE DE68923110T patent/DE68923110T2/de not_active Expired - Fee Related
- 1989-03-17 EP EP89302645A patent/EP0333496B1/de not_active Expired - Lifetime
- 1989-03-18 KR KR1019890003372A patent/KR920008904B1/ko not_active IP Right Cessation
- 1989-03-20 US US07/325,912 patent/US4930021A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR920008904B1 (ko) | 1992-10-10 |
KR890015563A (ko) | 1989-10-30 |
EP0333496B1 (de) | 1995-06-21 |
DE68923110T2 (de) | 1995-10-26 |
CA1306052C (en) | 1992-08-04 |
EP0333496A2 (de) | 1989-09-20 |
US4930021A (en) | 1990-05-29 |
EP0333496A3 (de) | 1991-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |