FR2354010A1 - Procede et dispositif d'interpolation d'echelle des gris - Google Patents
Procede et dispositif d'interpolation d'echelle des grisInfo
- Publication number
- FR2354010A1 FR2354010A1 FR7716876A FR7716876A FR2354010A1 FR 2354010 A1 FR2354010 A1 FR 2354010A1 FR 7716876 A FR7716876 A FR 7716876A FR 7716876 A FR7716876 A FR 7716876A FR 2354010 A1 FR2354010 A1 FR 2354010A1
- Authority
- FR
- France
- Prior art keywords
- gray scale
- interpolation method
- scale interpolation
- gray
- scale
- 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.)
- Granted
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
- H04N1/40068—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)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Facsimile Image Signal Circuits (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/692,604 US4032977A (en) | 1976-06-03 | 1976-06-03 | Gray scale interpolation technique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2354010A1 true FR2354010A1 (fr) | 1977-12-30 |
FR2354010B1 FR2354010B1 (fr) | 1984-05-04 |
Family
ID=24781270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7716876A Granted FR2354010A1 (fr) | 1976-06-03 | 1977-06-02 | Procede et dispositif d'interpolation d'echelle des gris |
Country Status (7)
Country | Link |
---|---|
US (1) | US4032977A (fr) |
JP (1) | JPS5322309A (fr) |
CA (1) | CA1097792A (fr) |
DE (1) | DE2724967A1 (fr) |
FR (1) | FR2354010A1 (fr) |
GB (1) | GB1530114A (fr) |
NL (1) | NL7706138A (fr) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2009568B (en) * | 1977-11-28 | 1982-03-24 | Nippon Telegraph & Telephone | Picture signal coding apparatus |
US4215414A (en) * | 1978-03-07 | 1980-07-29 | Hughes Aircraft Company | Pseudogaussian video output processing for digital display |
US4193092A (en) * | 1978-06-21 | 1980-03-11 | Xerox Corporation | Image interpolation system |
EP0006748B1 (fr) * | 1978-06-26 | 1982-06-23 | Environmental Research Institute Of Michigan | Appareil et procédé pour produire la transformation d'une première matrice de données en une seconde matrice de données |
GB2038142B (en) * | 1978-12-15 | 1982-11-24 | Ibm | Image data compression |
US4194221A (en) * | 1978-12-26 | 1980-03-18 | Xerox Corporation | Automatic multimode continuous halftone line copy reproduction |
US4259694A (en) * | 1979-08-24 | 1981-03-31 | Xerox Corporation | Electronic rescreen technique for halftone pictures |
US4280144A (en) * | 1979-12-03 | 1981-07-21 | International Business Machines Corporation | Coarse scan/fine print algorithm |
US4387395A (en) * | 1981-04-08 | 1983-06-07 | Satellite Business Systems | Facsimile to video converter |
US4437122A (en) | 1981-09-12 | 1984-03-13 | Xerox Corporation | Low resolution raster images |
US4630307A (en) * | 1984-09-10 | 1986-12-16 | Eastman Kodak Company | Signal processing method and apparatus for sampled image signals |
EP0717550A3 (fr) * | 1986-02-14 | 1996-10-09 | Canon Kk | Dispositif de traitement d'image |
USH996H (en) | 1987-01-20 | 1991-11-05 | Recognition Equipment Incorporated | High resolution page image display system |
US5025480A (en) * | 1987-03-23 | 1991-06-18 | Eastman Kodak Company | Background referencing |
JPS63245569A (ja) * | 1987-03-31 | 1988-10-12 | Yokogawa Medical Syst Ltd | 画像表示処理装置 |
US4924521A (en) * | 1987-12-18 | 1990-05-08 | International Business Machines Corporation | Image processing system and method employing combined black and white and gray scale image data |
US7382929B2 (en) | 1989-05-22 | 2008-06-03 | Pixel Instruments Corporation | Spatial scan replication circuit |
JPH0767821B2 (ja) * | 1990-02-26 | 1995-07-26 | 株式会社リコー | 画像形成方法 |
US6009193A (en) * | 1990-05-16 | 1999-12-28 | Canon Kabushiki Kaisha | Method and apparatus for converting N-value image to M-value image, for < NM |
DE69231481T2 (de) * | 1991-07-10 | 2001-02-08 | Fujitsu Ltd., Kawasaki | Bilderzeugungsgerät |
US5351084A (en) * | 1992-07-02 | 1994-09-27 | Global Telecommunications Industries, Inc. | Compressed video bit rate reduction system |
US6181826B1 (en) | 1992-07-22 | 2001-01-30 | Eastman Kodak Company | Method and associated apparatus for achieving additional signal level resolution from a quantized digital representation of an image |
JP2978672B2 (ja) * | 1993-01-28 | 1999-11-15 | 株式会社東芝 | 記録装置 |
JP3119150B2 (ja) * | 1995-02-02 | 2000-12-18 | 富士ゼロックス株式会社 | 画像処理装置および画像処理方法 |
US5657430A (en) * | 1996-03-07 | 1997-08-12 | Hewlett-Packard Company | Software-based procedure for conversion of a scalable font character bitmap to a gray level bitmap |
US5754751A (en) * | 1996-03-07 | 1998-05-19 | Hewlett-Packard Company | Software-based procedure and apparatus for enhancement of a gray level image |
US5809217A (en) * | 1997-01-10 | 1998-09-15 | Hewlett-Packard Company | Method and apparatus for deriving additional gray levels in a multi-gray level halftone image |
JP5344918B2 (ja) * | 2006-07-25 | 2013-11-20 | 株式会社Rosecc | 3次元自動切断方法及び装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2921124A (en) * | 1956-12-10 | 1960-01-12 | Bell Telephone Labor Inc | Method and apparatus for reducing television bandwidth |
DE2224066A1 (de) * | 1972-05-17 | 1973-12-06 | Siemens Ag | Verfahren und einrichtung zur uebertragung der in schwarzweissen graphischen vorlagen enthaltenen bildinformationen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1344312A (en) * | 1971-08-27 | 1974-01-23 | Post Office | Digital encoding system |
DE2358921B2 (de) * | 1973-11-27 | 1976-12-09 | Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg | Semiparallele bildverarbeitung mittels bewegter rezeptorspalte und zweidimensionalem elektronischen speicherfeld |
-
1976
- 1976-06-03 US US05/692,604 patent/US4032977A/en not_active Expired - Lifetime
-
1977
- 1977-06-01 JP JP6460477A patent/JPS5322309A/ja active Pending
- 1977-06-02 CA CA279,756A patent/CA1097792A/fr not_active Expired
- 1977-06-02 FR FR7716876A patent/FR2354010A1/fr active Granted
- 1977-06-02 DE DE19772724967 patent/DE2724967A1/de not_active Ceased
- 1977-06-02 GB GB23458/77A patent/GB1530114A/en not_active Expired
- 1977-06-03 NL NL7706138A patent/NL7706138A/xx not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2921124A (en) * | 1956-12-10 | 1960-01-12 | Bell Telephone Labor Inc | Method and apparatus for reducing television bandwidth |
DE2224066A1 (de) * | 1972-05-17 | 1973-12-06 | Siemens Ag | Verfahren und einrichtung zur uebertragung der in schwarzweissen graphischen vorlagen enthaltenen bildinformationen |
Non-Patent Citations (1)
Title |
---|
EXBK/76 * |
Also Published As
Publication number | Publication date |
---|---|
CA1097792A (fr) | 1981-03-17 |
GB1530114A (en) | 1978-10-25 |
NL7706138A (nl) | 1977-12-06 |
US4032977A (en) | 1977-06-28 |
DE2724967A1 (de) | 1977-12-15 |
JPS5322309A (en) | 1978-03-01 |
FR2354010B1 (fr) | 1984-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |