DE69824496T2 - Tintenverschiebung für Farbhalbtonrasterung - Google Patents
Tintenverschiebung für Farbhalbtonrasterung Download PDFInfo
- Publication number
- DE69824496T2 DE69824496T2 DE69824496T DE69824496T DE69824496T2 DE 69824496 T2 DE69824496 T2 DE 69824496T2 DE 69824496 T DE69824496 T DE 69824496T DE 69824496 T DE69824496 T DE 69824496T DE 69824496 T2 DE69824496 T2 DE 69824496T2
- Authority
- DE
- Germany
- Prior art keywords
- color
- pixel
- brightness variation
- neighbor pair
- neighbor
- 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
- 238000012216 screening Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims description 97
- 230000008569 process Effects 0.000 claims description 75
- 238000012360 testing method Methods 0.000 claims description 27
- 230000009467 reduction Effects 0.000 claims description 23
- 239000000976 ink Substances 0.000 description 50
- 239000003086 colorant Substances 0.000 description 31
- 238000006073 displacement reaction Methods 0.000 description 21
- 238000012545 processing Methods 0.000 description 20
- 238000012937 correction Methods 0.000 description 19
- 238000012805 post-processing Methods 0.000 description 19
- 238000013461 design Methods 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000011835 investigation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000009877 rendering Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000003707 image sharpening Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 241000238366 Cephalopoda Species 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
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- 230000002596 correlated effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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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
- H04N1/58—Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Color Image Communication Systems (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Ink Jet (AREA)
- Record Information Processing For Printing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/904,026 US5991512A (en) | 1997-07-31 | 1997-07-31 | Ink relocation for color halftones |
| US904026 | 1997-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69824496D1 DE69824496D1 (de) | 2004-07-22 |
| DE69824496T2 true DE69824496T2 (de) | 2005-06-23 |
Family
ID=25418406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69824496T Expired - Fee Related DE69824496T2 (de) | 1997-07-31 | 1998-07-27 | Tintenverschiebung für Farbhalbtonrasterung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5991512A (https=) |
| EP (1) | EP0895410B1 (https=) |
| JP (1) | JPH11168638A (https=) |
| DE (1) | DE69824496T2 (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6751358B1 (en) * | 1999-06-21 | 2004-06-15 | Xerox Corporation | Error diffusion for digital printing |
| US6870645B1 (en) | 2000-10-03 | 2005-03-22 | Hewlett-Packard Development Company, L.P. | Plane dependent matrix based halftoning |
| US6967753B2 (en) * | 2001-07-31 | 2005-11-22 | Hewlett-Packard Development Company, L.P. | Plane dependent compression |
| US7002708B2 (en) * | 2001-10-29 | 2006-02-21 | Hewlett-Packard Development Company, Lp. | Delayed decision dot placement for plane-dependent CMYK error diffusion |
| US7355747B2 (en) * | 2002-01-18 | 2008-04-08 | Hewlett-Packard Development Company, L.P. | System for improving the speed of data processing |
| JP2005086785A (ja) * | 2003-09-11 | 2005-03-31 | Brother Ind Ltd | 画像処理装置，画像処理方法および画像処理プログラム |
| US7450270B2 (en) * | 2004-01-16 | 2008-11-11 | Hewlett-Packard Development Company, L.P. | Image data processing methods, hard imaging devices, and articles of manufacture |
| KR100611981B1 (ko) * | 2004-05-01 | 2006-08-11 | 삼성전자주식회사 | 이미지의 하프토닝 방법 및 장치 |
| US8614830B2 (en) * | 2004-09-27 | 2013-12-24 | Hewlett-Packard Development Company, L.P. | Pixel exposure as a function of subpixels |
| US7733532B2 (en) | 2004-10-27 | 2010-06-08 | Marvell International Technology Ltd. | Laser print apparatus with dual halftones |
| US8049929B2 (en) * | 2005-09-02 | 2011-11-01 | Xerox Corporation | Color management of halftoned images |
| US7623264B2 (en) * | 2006-02-17 | 2009-11-24 | Case Robert M | Method for colorizing a digital halftone |
| US7796836B2 (en) * | 2006-03-03 | 2010-09-14 | General Atomics | Color condensation for image transformation and/or compression |
| JP5012315B2 (ja) * | 2007-08-20 | 2012-08-29 | セイコーエプソン株式会社 | 画像処理装置 |
| US7978371B2 (en) * | 2008-02-05 | 2011-07-12 | Xerox Corporation | Vector half-toning with minimum luminance variation dot formation |
| US7952764B2 (en) * | 2008-02-05 | 2011-05-31 | Xerox Corporation | Hierarchical color error diffusion in a CMYKRGB domain |
| US7916349B2 (en) * | 2008-10-27 | 2011-03-29 | Xerox Corporation | Color pixel error diffusion in a CMYK input color space |
| US9302498B2 (en) * | 2009-05-06 | 2016-04-05 | Xerox Corporation | Microstructured image overcoat layer for improved image uniformity applied with blanket overcoater and functional embossing roller |
| CN110874844A (zh) * | 2018-08-30 | 2020-03-10 | 京东方科技集团股份有限公司 | 线段检测方法、装置和设备 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070413A (en) * | 1989-10-10 | 1991-12-03 | Eastman Kodak Company | Color digital halftoning with vector error diffusion |
| US5473446A (en) * | 1992-05-04 | 1995-12-05 | Hewlett-Packard Company | Color digital halftoning using black and secondary color replacement and color vector dithering |
| EP0595650B1 (en) * | 1992-10-30 | 2000-06-07 | Canon Kabushiki Kaisha | Colour ink jet recording method and apparatus |
| US5768440A (en) * | 1996-12-18 | 1998-06-16 | Xerox Corporation | Adaptive noise removal for video images with less correction of current pixel for higher variations between surrounding pixels |
-
1997
- 1997-07-31 US US08/904,026 patent/US5991512A/en not_active Expired - Fee Related
-
1998
- 1998-07-24 JP JP10209841A patent/JPH11168638A/ja active Pending
- 1998-07-27 DE DE69824496T patent/DE69824496T2/de not_active Expired - Fee Related
- 1998-07-27 EP EP98305939A patent/EP0895410B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0895410A2 (en) | 1999-02-03 |
| EP0895410B1 (en) | 2004-06-16 |
| EP0895410A3 (en) | 2000-02-02 |
| JPH11168638A (ja) | 1999-06-22 |
| US5991512A (en) | 1999-11-23 |
| DE69824496D1 (de) | 2004-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE |
|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |