DE60137906D1 - Adaptive Beleuchtungskorrektur abgetasteter Bilder - Google Patents
Adaptive Beleuchtungskorrektur abgetasteter BilderInfo
- Publication number
- DE60137906D1 DE60137906D1 DE60137906T DE60137906T DE60137906D1 DE 60137906 D1 DE60137906 D1 DE 60137906D1 DE 60137906 T DE60137906 T DE 60137906T DE 60137906 T DE60137906 T DE 60137906T DE 60137906 D1 DE60137906 D1 DE 60137906D1
- Authority
- DE
- Germany
- Prior art keywords
- scanned images
- illumination correction
- adaptive illumination
- adaptive
- correction
- 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
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
- H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
-
- 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
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
- H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/750,568 US6806980B2 (en) | 2000-12-28 | 2000-12-28 | Adaptive illumination correction of scanned images |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60137906D1 true DE60137906D1 (de) | 2009-04-23 |
Family
ID=25018375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60137906T Expired - Lifetime DE60137906D1 (de) | 2000-12-28 | 2001-12-19 | Adaptive Beleuchtungskorrektur abgetasteter Bilder |
Country Status (4)
Country | Link |
---|---|
US (1) | US6806980B2 (de) |
EP (1) | EP1221810B1 (de) |
JP (1) | JP2002232720A (de) |
DE (1) | DE60137906D1 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60036232T2 (de) | 1999-12-08 | 2008-05-21 | X-Rite, Inc., Grandville | Optisches Messgerät und Verfahren |
US7174049B2 (en) * | 2002-12-11 | 2007-02-06 | Seiko Epson Corporation | Image upscaling by joint optimization of low and mid-level image variables |
US7349132B2 (en) * | 2003-01-30 | 2008-03-25 | Kabushiki Kaisha Toshiba | Image reading apparatus |
JP4036156B2 (ja) * | 2003-07-30 | 2008-01-23 | セイコーエプソン株式会社 | 逆光画像の判定 |
HU225662B1 (en) * | 2004-03-05 | 2007-05-29 | Zoltan Horvath | Method and device optical geometric relation surface of the 2 dimensional object |
BRPI0510485A (pt) * | 2004-04-30 | 2007-11-13 | Allergan Inc | implantes inibidores de tirosina cinase intravìtreos biodegradáveis |
JP4271085B2 (ja) * | 2004-06-03 | 2009-06-03 | 株式会社リコー | 画像補正装置、画像読取装置、プログラム及び記憶媒体 |
US8432582B2 (en) * | 2004-08-20 | 2013-04-30 | Xerox Corporation | Uniformity compensation in halftoned images |
US8213687B2 (en) * | 2006-04-28 | 2012-07-03 | Hewlett-Packard Development Company, L.P. | Image processing methods, image processing systems, and articles of manufacture |
US20080007747A1 (en) * | 2006-06-30 | 2008-01-10 | Fuji Photo Film Co., Ltd. | Method and apparatus for model based anisotropic diffusion |
US7747045B2 (en) * | 2006-06-30 | 2010-06-29 | Fujifilm Corporation | Method and apparatus for diffusion based illumination normalization |
US8290293B2 (en) * | 2006-10-17 | 2012-10-16 | Samsung Electronics Co., Ltd. | Image compensation in regions of low image contrast |
EP1914979B1 (de) * | 2006-10-17 | 2014-03-12 | Samsung Electronics Co., Ltd. | Bildkompensation in Bereichen mit geringem Bildkontrast |
GB2443457B (en) | 2006-10-31 | 2011-11-02 | Hewlett Packard Development Co | Image processing system and method |
US20080118172A1 (en) * | 2006-11-22 | 2008-05-22 | Samsung Electronics Co., Ltd. | Image forming apparatus and image forming method |
US8254680B2 (en) | 2007-01-24 | 2012-08-28 | Samsung Electronics Co., Ltd. | Apparatus and method of segmenting an image in an image coding and/or decoding system |
US7597418B2 (en) * | 2007-07-31 | 2009-10-06 | Xerox Corporation | System and method for adjusting ink jet uniformity based on drop mass history |
US7991240B2 (en) * | 2007-09-17 | 2011-08-02 | Aptina Imaging Corporation | Methods, systems and apparatuses for modeling optical images |
EP2291795A1 (de) * | 2008-07-02 | 2011-03-09 | C-True Ltd. | Gesichtserkennungssystem und -verfahren |
DE102009007039A1 (de) * | 2009-02-02 | 2010-08-12 | Siemens Aktiengesellschaft | Beleuchtungseinheit und optische Erfassungseinheit für Objekte mit integrierter Beleuchtungseinheit |
US8368964B2 (en) * | 2009-08-06 | 2013-02-05 | Xerox Corporation | Method for estimation of image defocus and defocus restoration |
US8764151B2 (en) | 2010-06-21 | 2014-07-01 | Xerox Corporation | System and method for preserving edges while enabling inkjet correction within an interior of an image |
US8571343B2 (en) | 2011-03-01 | 2013-10-29 | Sharp Laboratories Of America, Inc. | Methods and systems for document-image correction |
US8306335B2 (en) * | 2011-03-30 | 2012-11-06 | Seiko Epson Corporation | Method of analyzing digital document images |
US8457403B2 (en) * | 2011-05-19 | 2013-06-04 | Seiko Epson Corporation | Method of detecting and correcting digital images of books in the book spine area |
US8807695B1 (en) | 2013-01-30 | 2014-08-19 | Xerox Corporation | System and method for estimating ink usage in an inkjet printer |
US8960839B1 (en) | 2014-05-14 | 2015-02-24 | Xerox Corporation | System and method for spatial dependent correction for images printed with multiple drop parameters |
US9955041B2 (en) | 2015-06-12 | 2018-04-24 | Xerox Corporation | System and method for tone reproduction curve color resolution enhancement in a three-dimensional object printer |
US9998628B1 (en) | 2017-04-03 | 2018-06-12 | Xerox Corporation | Methods and systems for auto correction of defects in a scanned image |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4656665A (en) * | 1985-01-15 | 1987-04-07 | International Business Machines Corporation | Thresholding technique for graphics images using histogram analysis |
US4980720A (en) | 1990-05-22 | 1990-12-25 | Xerox Corporation | Document reproduction machine with enhanced book copying capability |
JP3311414B2 (ja) * | 1993-03-01 | 2002-08-05 | 株式会社リコー | 画像読み取り装置 |
US5583659A (en) * | 1994-11-10 | 1996-12-10 | Eastman Kodak Company | Multi-windowing technique for thresholding an image using local image properties |
JPH08223419A (ja) | 1995-02-14 | 1996-08-30 | Minolta Co Ltd | 画像入力装置 |
JPH08307688A (ja) | 1995-04-28 | 1996-11-22 | Minolta Co Ltd | 画像読み取り装置 |
US6053900A (en) | 1996-02-16 | 2000-04-25 | Brown; Joe E. | Apparatus and method for delivering diagnostic and therapeutic agents intravascularly |
JP3631333B2 (ja) * | 1996-08-23 | 2005-03-23 | シャープ株式会社 | 画像処理装置 |
JP3436015B2 (ja) | 1996-09-19 | 2003-08-11 | ミノルタ株式会社 | 画像読取り装置 |
US6175660B1 (en) * | 1997-03-25 | 2001-01-16 | Minolta Co., Ltd. | Image reading apparatus |
US6043900A (en) * | 1998-03-31 | 2000-03-28 | Xerox Corporation | Method and system for automatically detecting a background type of a scanned document utilizing a leadedge histogram thereof |
JP4097800B2 (ja) * | 1998-09-07 | 2008-06-11 | 株式会社東芝 | 画像処理方法および画像処理装置 |
-
2000
- 2000-12-28 US US09/750,568 patent/US6806980B2/en not_active Expired - Lifetime
-
2001
- 2001-12-19 EP EP01130199A patent/EP1221810B1/de not_active Expired - Lifetime
- 2001-12-19 DE DE60137906T patent/DE60137906D1/de not_active Expired - Lifetime
- 2001-12-21 JP JP2001388702A patent/JP2002232720A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1221810B1 (de) | 2009-03-11 |
EP1221810A2 (de) | 2002-07-10 |
US20020085248A1 (en) | 2002-07-04 |
JP2002232720A (ja) | 2002-08-16 |
EP1221810A3 (de) | 2004-10-20 |
US6806980B2 (en) | 2004-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |