DE69734962T2 - Verarbeitung mittels mehrerer räumlicher Kanäle - Google Patents
Verarbeitung mittels mehrerer räumlicher Kanäle Download PDFInfo
- Publication number
- DE69734962T2 DE69734962T2 DE69734962T DE69734962T DE69734962T2 DE 69734962 T2 DE69734962 T2 DE 69734962T2 DE 69734962 T DE69734962 T DE 69734962T DE 69734962 T DE69734962 T DE 69734962T DE 69734962 T2 DE69734962 T2 DE 69734962T2
- Authority
- DE
- Germany
- Prior art keywords
- pixel
- image data
- image
- channel
- value
- 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
- 238000000034 method Methods 0.000 claims description 42
- 230000003628 erosive effect Effects 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims 1
- 230000008569 process Effects 0.000 description 21
- 230000008901 benefit Effects 0.000 description 7
- 238000007639 printing Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 5
- 239000000872 buffer Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000000007 visual effect Effects 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
- H04N1/405—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
- H04N1/4057—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 the pattern being a mixture of differently sized sub-patterns, e.g. spots having only a few different diameters
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Fax Reproducing Arrangements (AREA)
- Color, Gradation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/731,893 US5920653A (en) | 1996-10-22 | 1996-10-22 | Multiple spatial channel printing |
| US731893 | 1996-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69734962D1 DE69734962D1 (de) | 2006-02-02 |
| DE69734962T2 true DE69734962T2 (de) | 2006-08-03 |
Family
ID=24941357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69734962T Expired - Fee Related DE69734962T2 (de) | 1996-10-22 | 1997-10-20 | Verarbeitung mittels mehrerer räumlicher Kanäle |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5920653A (enExample) |
| EP (1) | EP0838940B1 (enExample) |
| JP (1) | JPH10150573A (enExample) |
| DE (1) | DE69734962T2 (enExample) |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6441867B1 (en) * | 1999-10-22 | 2002-08-27 | Sharp Laboratories Of America, Incorporated | Bit-depth extension of digital displays using noise |
| US7548345B2 (en) * | 2002-10-24 | 2009-06-16 | Lexmark International, Inc. | High resolution print mode offering improved text print quality |
| US7369267B2 (en) * | 2003-06-30 | 2008-05-06 | Lexmark International, Inc. | High resolution printing method |
| US7440633B2 (en) * | 2003-12-19 | 2008-10-21 | Sharp Laboratories Of America, Inc. | Enhancing the quality of decoded quantized images |
| US7424166B2 (en) * | 2003-12-24 | 2008-09-09 | Sharp Laboratories Of America, Inc. | Enhancing the quality of decoded quantized images |
| US7424168B2 (en) * | 2003-12-24 | 2008-09-09 | Sharp Laboratories Of America, Inc. | Enhancing the quality of decoded quantized images |
| US7400779B2 (en) * | 2004-01-08 | 2008-07-15 | Sharp Laboratories Of America, Inc. | Enhancing the quality of decoded quantized images |
| US7140710B2 (en) * | 2004-06-28 | 2006-11-28 | Lexmark International, Inc. | Dot management for an imaging apparatus |
| US7474316B2 (en) * | 2004-08-17 | 2009-01-06 | Sharp Laboratories Of America, Inc. | Bit-depth extension of digital displays via the use of models of the impulse response of the visual system |
| WO2006040960A1 (ja) * | 2004-10-08 | 2006-04-20 | Matsushita Electric Industrial Co., Ltd. | 画像処理装置および画像処理プログラム |
| US8913089B2 (en) * | 2005-06-15 | 2014-12-16 | Sharp Laboratories Of America, Inc. | Methods and systems for enhancing display characteristics with frequency-specific gain |
| US8120570B2 (en) | 2004-12-02 | 2012-02-21 | Sharp Laboratories Of America, Inc. | Systems and methods for tone curve generation, selection and application |
| US9083969B2 (en) * | 2005-08-12 | 2015-07-14 | Sharp Laboratories Of America, Inc. | Methods and systems for independent view adjustment in multiple-view displays |
| US7800577B2 (en) * | 2004-12-02 | 2010-09-21 | Sharp Laboratories Of America, Inc. | Methods and systems for enhancing display characteristics |
| US7924261B2 (en) * | 2004-12-02 | 2011-04-12 | Sharp Laboratories Of America, Inc. | Methods and systems for determining a display light source adjustment |
| US8947465B2 (en) * | 2004-12-02 | 2015-02-03 | Sharp Laboratories Of America, Inc. | Methods and systems for display-mode-dependent brightness preservation |
| US8111265B2 (en) * | 2004-12-02 | 2012-02-07 | Sharp Laboratories Of America, Inc. | Systems and methods for brightness preservation using a smoothed gain image |
| US7782405B2 (en) * | 2004-12-02 | 2010-08-24 | Sharp Laboratories Of America, Inc. | Systems and methods for selecting a display source light illumination level |
| US7515160B2 (en) * | 2006-07-28 | 2009-04-07 | Sharp Laboratories Of America, Inc. | Systems and methods for color preservation with image tone scale corrections |
| US7982707B2 (en) * | 2004-12-02 | 2011-07-19 | Sharp Laboratories Of America, Inc. | Methods and systems for generating and applying image tone scale adjustments |
| US7961199B2 (en) * | 2004-12-02 | 2011-06-14 | Sharp Laboratories Of America, Inc. | Methods and systems for image-specific tone scale adjustment and light-source control |
| US8922594B2 (en) * | 2005-06-15 | 2014-12-30 | Sharp Laboratories Of America, Inc. | Methods and systems for enhancing display characteristics with high frequency contrast enhancement |
| US7768496B2 (en) * | 2004-12-02 | 2010-08-03 | Sharp Laboratories Of America, Inc. | Methods and systems for image tonescale adjustment to compensate for a reduced source light power level |
| US8004511B2 (en) * | 2004-12-02 | 2011-08-23 | Sharp Laboratories Of America, Inc. | Systems and methods for distortion-related source light management |
| US7839406B2 (en) * | 2006-03-08 | 2010-11-23 | Sharp Laboratories Of America, Inc. | Methods and systems for enhancing display characteristics with ambient illumination input |
| JP4701144B2 (ja) * | 2006-09-26 | 2011-06-15 | 富士通株式会社 | 画像処理装置、画像処理方法および画像処理プログラム |
| US7826681B2 (en) * | 2007-02-28 | 2010-11-02 | Sharp Laboratories Of America, Inc. | Methods and systems for surround-specific display modeling |
| US8345038B2 (en) * | 2007-10-30 | 2013-01-01 | Sharp Laboratories Of America, Inc. | Methods and systems for backlight modulation and brightness preservation |
| US8155434B2 (en) * | 2007-10-30 | 2012-04-10 | Sharp Laboratories Of America, Inc. | Methods and systems for image enhancement |
| US9177509B2 (en) * | 2007-11-30 | 2015-11-03 | Sharp Laboratories Of America, Inc. | Methods and systems for backlight modulation with scene-cut detection |
| US8378956B2 (en) * | 2007-11-30 | 2013-02-19 | Sharp Laboratories Of America, Inc. | Methods and systems for weighted-error-vector-based source light selection |
| US8207932B2 (en) | 2007-12-26 | 2012-06-26 | Sharp Laboratories Of America, Inc. | Methods and systems for display source light illumination level selection |
| US8179363B2 (en) * | 2007-12-26 | 2012-05-15 | Sharp Laboratories Of America, Inc. | Methods and systems for display source light management with histogram manipulation |
| US8169431B2 (en) | 2007-12-26 | 2012-05-01 | Sharp Laboratories Of America, Inc. | Methods and systems for image tonescale design |
| US8223113B2 (en) * | 2007-12-26 | 2012-07-17 | Sharp Laboratories Of America, Inc. | Methods and systems for display source light management with variable delay |
| US8203579B2 (en) * | 2007-12-26 | 2012-06-19 | Sharp Laboratories Of America, Inc. | Methods and systems for backlight modulation with image characteristic mapping |
| US8531379B2 (en) * | 2008-04-28 | 2013-09-10 | Sharp Laboratories Of America, Inc. | Methods and systems for image compensation for ambient conditions |
| US8416179B2 (en) * | 2008-07-10 | 2013-04-09 | Sharp Laboratories Of America, Inc. | Methods and systems for color preservation with a color-modulated backlight |
| US9330630B2 (en) * | 2008-08-30 | 2016-05-03 | Sharp Laboratories Of America, Inc. | Methods and systems for display source light management with rate change control |
| US8165724B2 (en) * | 2009-06-17 | 2012-04-24 | Sharp Laboratories Of America, Inc. | Methods and systems for power-controlling display devices |
| US20110001737A1 (en) * | 2009-07-02 | 2011-01-06 | Kerofsky Louis J | Methods and Systems for Ambient-Adaptive Image Display |
| US20110074803A1 (en) * | 2009-09-29 | 2011-03-31 | Louis Joseph Kerofsky | Methods and Systems for Ambient-Illumination-Selective Display Backlight Modification and Image Enhancement |
| JP7249417B2 (ja) | 2018-12-19 | 2023-03-30 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 適応的スパースフィルタリングを用いた画像のデバンディング |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110360A (ja) * | 1984-06-26 | 1986-01-17 | Canon Inc | 画像処理装置 |
| JPS6125365A (ja) * | 1984-07-13 | 1986-02-04 | Canon Inc | 中間調画像形成方法 |
| GB8806235D0 (en) * | 1988-03-16 | 1988-04-13 | Pixie Intelligent Computer Sys | Dynamic printing enhancement |
| US5134495A (en) * | 1990-11-07 | 1992-07-28 | Dp-Tek, Inc. | Resolution transforming raster-based imaging system |
| US5276532A (en) * | 1991-11-26 | 1994-01-04 | Xerox Corporation | Split-level frame buffer |
| US5258854A (en) * | 1991-12-06 | 1993-11-02 | Xerox Corporation | Converting between write-white, write-black and neutral bitmaps |
-
1996
- 1996-10-22 US US08/731,893 patent/US5920653A/en not_active Expired - Lifetime
-
1997
- 1997-10-20 DE DE69734962T patent/DE69734962T2/de not_active Expired - Fee Related
- 1997-10-20 EP EP97308307A patent/EP0838940B1/en not_active Expired - Lifetime
- 1997-10-22 JP JP9289533A patent/JPH10150573A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69734962D1 (de) | 2006-02-02 |
| US5920653A (en) | 1999-07-06 |
| EP0838940A3 (en) | 1999-02-10 |
| EP0838940B1 (en) | 2005-12-28 |
| JPH10150573A (ja) | 1998-06-02 |
| EP0838940A2 (en) | 1998-04-29 |
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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 |