DE69714006T2 - Zellbasierte Textverbesserung für einen Farbdrucker - Google Patents
Zellbasierte Textverbesserung für einen FarbdruckerInfo
- Publication number
- DE69714006T2 DE69714006T2 DE69714006T DE69714006T DE69714006T2 DE 69714006 T2 DE69714006 T2 DE 69714006T2 DE 69714006 T DE69714006 T DE 69714006T DE 69714006 T DE69714006 T DE 69714006T DE 69714006 T2 DE69714006 T2 DE 69714006T2
- Authority
- DE
- Germany
- Prior art keywords
- region
- data
- color
- chromatic colorant
- amount
- 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 - Lifetime
Links
- 239000003086 colorant Substances 0.000 claims description 88
- 238000007639 printing Methods 0.000 claims description 29
- 238000012360 testing method Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 238000003491 array Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 210000004885 white matter Anatomy 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
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/6072—Colour correction or control adapting to different types of images, e.g. characters, graphs, black and white image portions
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Color Image Communication Systems (AREA)
- Color, Gradation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/814,494 US6176566B1 (en) | 1997-03-10 | 1997-03-10 | Cell-based text enhancement for a color printer by complete excess-color stripping, based on previous regions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69714006D1 DE69714006D1 (de) | 2002-08-22 |
| DE69714006T2 true DE69714006T2 (de) | 2002-11-14 |
Family
ID=25215216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69714006T Expired - Lifetime DE69714006T2 (de) | 1997-03-10 | 1997-08-12 | Zellbasierte Textverbesserung für einen Farbdrucker |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6176566B1 (enExample) |
| EP (1) | EP0865194B1 (enExample) |
| JP (1) | JPH10257342A (enExample) |
| DE (1) | DE69714006T2 (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493517B1 (en) | 2001-09-10 | 2002-12-10 | Hewlett-Packard Company | Integration of self-determined consumable usage model in pigmentation material low/out forecast |
| US7116821B2 (en) * | 2002-03-25 | 2006-10-03 | Lexmark International, Inc. | Color trapping for an image forming apparatus |
| JP2004320448A (ja) * | 2003-04-16 | 2004-11-11 | Ricoh Co Ltd | 画像処理装置、画像処理システム、およびコンピュータが実行するためのプログラム |
| TWI442329B (zh) * | 2009-08-10 | 2014-06-21 | Primax Electronics Ltd | 在輸入影像中取出具有文字特徵之影像的影像處理方法及其相關裝置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2696333B2 (ja) | 1988-03-24 | 1998-01-14 | キヤノン株式会社 | カラー画像処理装置 |
| JP3200055B2 (ja) | 1989-05-10 | 2001-08-20 | キヤノン株式会社 | 画像処理装置及び方法 |
| DE69030280T2 (de) * | 1989-05-08 | 1997-10-30 | Canon K.K., Tokio/Tokyo | Bildverarbeitungsvorrichtung und -methode |
| US5574832A (en) * | 1992-08-03 | 1996-11-12 | Hewlett-Packard Corporation | Double axis dot depletion for 600 DPI edge acuity with 300 DPI print cartridge |
| US5477335A (en) | 1992-12-28 | 1995-12-19 | Eastman Kodak Company | Method and apparatus of copying of black text on documents using a color scanner |
| US5483625A (en) * | 1993-04-26 | 1996-01-09 | Hewlett-Packard Company | Method and apparatus for adjusting density in digital images |
| US5519815A (en) * | 1993-11-29 | 1996-05-21 | Xerox Corporation | Image processing method to reduce marking material coverage in printing processes |
| US5563985A (en) * | 1994-01-05 | 1996-10-08 | Xerox Corporation | Image processing method to reduce marking material coverage in printing processes |
| US5642474A (en) * | 1995-03-06 | 1997-06-24 | Hewlett-Packard Company | Arbitrary masking technique for filling in shapes for display |
| US5848225A (en) * | 1996-12-04 | 1998-12-08 | Xerox Corporation | Color bitmap merging of black objects using separation maximum value clipping |
-
1997
- 1997-03-10 US US08/814,494 patent/US6176566B1/en not_active Expired - Lifetime
- 1997-08-06 JP JP9211093A patent/JPH10257342A/ja active Pending
- 1997-08-12 DE DE69714006T patent/DE69714006T2/de not_active Expired - Lifetime
- 1997-08-12 EP EP97306120A patent/EP0865194B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US6176566B1 (en) | 2001-01-23 |
| EP0865194A3 (en) | 1999-11-17 |
| EP0865194B1 (en) | 2002-07-17 |
| DE69714006D1 (de) | 2002-08-22 |
| EP0865194A2 (en) | 1998-09-16 |
| JPH10257342A (ja) | 1998-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |