CA1097792A - Gray scale interpolation technique - Google Patents
Gray scale interpolation techniqueInfo
- Publication number
- CA1097792A CA1097792A CA279,756A CA279756A CA1097792A CA 1097792 A CA1097792 A CA 1097792A CA 279756 A CA279756 A CA 279756A CA 1097792 A CA1097792 A CA 1097792A
- Authority
- CA
- Canada
- Prior art keywords
- gray scale
- data elements
- output data
- matrix
- improvement
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000011159 matrix material Substances 0.000 claims abstract description 73
- 238000003384 imaging method Methods 0.000 claims abstract description 19
- 230000006872 improvement Effects 0.000 claims description 17
- 230000004044 response Effects 0.000 claims description 16
- 238000007476 Maximum Likelihood Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013139 quantization Methods 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/692,604 US4032977A (en) | 1976-06-03 | 1976-06-03 | Gray scale interpolation technique |
| US692,604 | 1991-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1097792A true CA1097792A (en) | 1981-03-17 |
Family
ID=24781270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA279,756A Expired CA1097792A (en) | 1976-06-03 | 1977-06-02 | Gray scale interpolation technique |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4032977A (enExample) |
| JP (1) | JPS5322309A (enExample) |
| CA (1) | CA1097792A (enExample) |
| DE (1) | DE2724967A1 (enExample) |
| FR (1) | FR2354010A1 (enExample) |
| GB (1) | GB1530114A (enExample) |
| NL (1) | NL7706138A (enExample) |
Families Citing this family (29)
| 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 |
| DE2963153D1 (en) * | 1978-06-26 | 1982-08-12 | Environmental Res Inst | Apparatus and method for generating a transformation of a first data matrix to form a second data matrix |
| 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 |
| US4427511A (en) | 1982-08-12 | 1984-01-24 | Roland Wohlgemuth | Photo-induced electron transfer method |
| US4630307A (en) * | 1984-09-10 | 1986-12-16 | Eastman Kodak Company | Signal processing method and apparatus for sampled image signals |
| EP0717551B1 (en) * | 1986-02-14 | 2000-05-17 | Canon Kabushiki Kaisha | Image processing apparatus |
| 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 |
Family Cites Families (3)
| 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 |
| 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 FR FR7716876A patent/FR2354010A1/fr active Granted
- 1977-06-02 GB GB23458/77A patent/GB1530114A/en not_active Expired
- 1977-06-02 CA CA279,756A patent/CA1097792A/en not_active Expired
- 1977-06-02 DE DE19772724967 patent/DE2724967A1/de not_active Ceased
- 1977-06-03 NL NL7706138A patent/NL7706138A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2354010A1 (fr) | 1977-12-30 |
| NL7706138A (nl) | 1977-12-06 |
| GB1530114A (en) | 1978-10-25 |
| US4032977A (en) | 1977-06-28 |
| FR2354010B1 (enExample) | 1984-05-04 |
| DE2724967A1 (de) | 1977-12-15 |
| JPS5322309A (en) | 1978-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |