BR0106160A - Detecção automãtica de fundo para documentos escaneados - Google Patents
Detecção automãtica de fundo para documentos escaneadosInfo
- Publication number
- BR0106160A BR0106160A BR0106160-7A BR0106160A BR0106160A BR 0106160 A BR0106160 A BR 0106160A BR 0106160 A BR0106160 A BR 0106160A BR 0106160 A BR0106160 A BR 0106160A
- Authority
- BR
- Brazil
- Prior art keywords
- statistic
- background
- full
- page
- sub
- Prior art date
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
- H04N1/407—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
- H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms
-
- 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
- H04N1/38—Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Input (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
Abstract
"DETECçãO AUTOMáTICA DE FUNDO PARA DOCUMENTOS ESCANEADOS". Um método para gerar uma estatística de fundo que distingue entre informação de nível cinza proveniente de áreas do documento ou de fora do documento. O método inclui determinar uma estatística de fundo de página inteira a partir de pixels selecionados dentro de uma imagem escaneada; determinar uma estatística de fundo de sub-região a partir de pixels selecionados dentro de uma sub-região da imagem escaneada; determinar se a estatística de fundo de sub-região corresponde a dados de imagem provenientes de uma área que não é do documento; determinar se a estatística de fundo de página inteira está corrompida; e gerar uma estatística de fundo de página inteira validada se a estatística de fundo de página inteira estiver corrompida.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/739,405 US6674899B2 (en) | 2000-12-18 | 2000-12-18 | Automatic background detection of scanned documents |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0106160A true BR0106160A (pt) | 2002-08-13 |
BR0106160B1 BR0106160B1 (pt) | 2014-09-02 |
Family
ID=24972140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0106160-7A BR0106160B1 (pt) | 2000-12-18 | 2001-12-18 | Método para gerar estatísticas de fundo para um documento escaneado |
Country Status (7)
Country | Link |
---|---|
US (1) | US6674899B2 (pt) |
EP (1) | EP1215884B1 (pt) |
JP (1) | JP4416365B2 (pt) |
BR (1) | BR0106160B1 (pt) |
CA (1) | CA2365001C (pt) |
DE (1) | DE60141739D1 (pt) |
MX (1) | MXPA01013064A (pt) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4085580B2 (ja) * | 2001-02-20 | 2008-05-14 | 富士ゼロックス株式会社 | 画像処理装置 |
US7116826B2 (en) * | 2001-06-15 | 2006-10-03 | Canon Kabushiki Kaisha | Embedding with error-correction encoding |
US7058222B2 (en) * | 2001-12-20 | 2006-06-06 | Xerox Corporation | Automatic background detection of scanned documents |
US20030128873A1 (en) * | 2002-01-07 | 2003-07-10 | Barry Bronson | Imaging system and method for generating a digital image file |
JP4046016B2 (ja) * | 2003-06-04 | 2008-02-13 | セイコーエプソン株式会社 | 画像データ処理装置及び画像データの処理方法 |
US6965746B2 (en) * | 2003-06-17 | 2005-11-15 | Xerox Corporation | Hybrid electrophotographic development with toner induction charged via AC induced conductivity |
KR100750112B1 (ko) * | 2003-11-03 | 2007-08-21 | 삼성전자주식회사 | 입체물 스캔 장치 및 방법 |
US7421143B2 (en) * | 2004-06-01 | 2008-09-02 | Xerox Corporation | Systems and methods for optimal dynamic range adjustment of scanned images |
US20050265600A1 (en) * | 2004-06-01 | 2005-12-01 | Xerox Corporation | Systems and methods for adjusting pixel classification using background detection |
US20060039627A1 (en) * | 2004-08-21 | 2006-02-23 | Xerox Corporation | Real-time processing of grayscale image data |
US7515772B2 (en) * | 2004-08-21 | 2009-04-07 | Xerox Corp | Document registration and skew detection system |
US20060098243A1 (en) * | 2004-11-08 | 2006-05-11 | Lexmark International, Inc. | Determining a gray background value and/or skew of a scanned document |
US20060165292A1 (en) * | 2005-01-26 | 2006-07-27 | Xerox Corporation. | Noise resistant edge detection |
US20060268365A1 (en) * | 2005-05-27 | 2006-11-30 | Lexmark International, Inc. | Imaging apparatus configured for scanning a document |
US7388690B2 (en) * | 2005-05-27 | 2008-06-17 | Khageshwar Thakur | Method for calibrating an imaging apparatus configured for scanning a document |
US7551334B2 (en) * | 2005-07-20 | 2009-06-23 | Xerox Corporation | Background suppression method and apparatus |
US7555172B2 (en) * | 2005-10-31 | 2009-06-30 | Xerox Corporation | Dynamic range detection and adjustment |
US7668394B2 (en) * | 2005-12-21 | 2010-02-23 | Lexmark International, Inc. | Background intensity correction of a scan of a document |
US7701618B2 (en) * | 2006-06-14 | 2010-04-20 | Kabushiki Kaisha Toshiba | Automatic image enhancement using computed predictors |
US8134762B2 (en) * | 2007-01-29 | 2012-03-13 | Sharp Laboratories Of America, Inc. | Methods and systems for characterizing regions of substantially-uniform color in a digital image |
US7873232B2 (en) * | 2007-07-31 | 2011-01-18 | Xerox Corporation | Method and system for image background suppression using neutral adjustment of color channels |
US20090041344A1 (en) * | 2007-08-08 | 2009-02-12 | Richard John Campbell | Methods and Systems for Determining a Background Color in a Digital Image |
US7843616B2 (en) * | 2008-03-27 | 2010-11-30 | Xerox Corporation | Background suppression in a multi-function color scanning system |
US8111918B2 (en) * | 2008-10-20 | 2012-02-07 | Xerox Corporation | Segmentation for three-layer mixed raster content images |
US8285035B2 (en) * | 2008-12-05 | 2012-10-09 | Xerox Corporation | 3+1 layer mixed raster content (MRC) images having a text layer and processing thereof |
US8180153B2 (en) * | 2008-12-05 | 2012-05-15 | Xerox Corporation | 3+1 layer mixed raster content (MRC) images having a black text layer |
US8335379B2 (en) * | 2009-12-28 | 2012-12-18 | Xerox Corporation | System and method for cleanup of MRC images for improved compression and image quality |
JP5701181B2 (ja) * | 2011-08-18 | 2015-04-15 | 株式会社Pfu | 画像処理装置、画像処理方法及びコンピュータプログラム |
JP5701182B2 (ja) | 2011-08-18 | 2015-04-15 | 株式会社Pfu | 画像処理装置、画像処理方法及びコンピュータプログラム |
US9426329B2 (en) * | 2014-07-10 | 2016-08-23 | Csr Imaging Us, Lp | Image processing system of background removal and white/black point compensation |
JP6326316B2 (ja) * | 2014-07-25 | 2018-05-16 | シャープ株式会社 | 画像処理装置、撮影装置、プログラム、記録媒体 |
US9710911B2 (en) * | 2015-11-30 | 2017-07-18 | Raytheon Company | System and method for generating a background reference image from a series of images to facilitate moving object identification |
JP2020065193A (ja) * | 2018-10-18 | 2020-04-23 | シャープ株式会社 | 画像形成装置、画像処理方法及び画像処理プログラム |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5086485A (en) | 1990-10-19 | 1992-02-04 | Xerox Corporation | Method and apparatus for dynamically setting a background level |
US5280367A (en) * | 1991-05-28 | 1994-01-18 | Hewlett-Packard Company | Automatic separation of text from background in scanned images of complex documents |
US5488491A (en) * | 1993-07-06 | 1996-01-30 | Eastman Kodak Company | Image processing apparatus and method for eliminating background density in a designated image area |
JP3532014B2 (ja) * | 1995-11-30 | 2004-05-31 | 松下電器産業株式会社 | しきい値算出方法 |
US5848183A (en) | 1996-11-21 | 1998-12-08 | Xerox Corporation | System and method for generating and utilizing histogram data from a scanned image |
US5835628A (en) | 1996-11-21 | 1998-11-10 | Xerox Corporation | Method and system for generating histograms from a scanned image |
US5881166A (en) | 1996-11-21 | 1999-03-09 | Xerox Corporation | Method and system for generating a histogram of a scanned image |
US5751848A (en) | 1996-11-21 | 1998-05-12 | Xerox Corporation | System and method for generating and utilizing histogram data from a scanned image |
US6198845B1 (en) * | 1997-07-01 | 2001-03-06 | Xerox Corporation | Method for determining document background for adjusting the dynamic range of an image of the document |
-
2000
- 2000-12-18 US US09/739,405 patent/US6674899B2/en not_active Expired - Lifetime
-
2001
- 2001-12-10 CA CA002365001A patent/CA2365001C/en not_active Expired - Fee Related
- 2001-12-11 JP JP2001376710A patent/JP4416365B2/ja not_active Expired - Fee Related
- 2001-12-13 EP EP01129764A patent/EP1215884B1/en not_active Expired - Lifetime
- 2001-12-13 DE DE60141739T patent/DE60141739D1/de not_active Expired - Lifetime
- 2001-12-17 MX MXPA01013064A patent/MXPA01013064A/es active IP Right Grant
- 2001-12-18 BR BRPI0106160-7A patent/BR0106160B1/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1215884A2 (en) | 2002-06-19 |
JP2002208007A (ja) | 2002-07-26 |
US6674899B2 (en) | 2004-01-06 |
CA2365001C (en) | 2005-01-25 |
US20020076102A1 (en) | 2002-06-20 |
DE60141739D1 (de) | 2010-05-20 |
MXPA01013064A (es) | 2004-05-21 |
CA2365001A1 (en) | 2002-06-18 |
BR0106160B1 (pt) | 2014-09-02 |
EP1215884B1 (en) | 2010-04-07 |
JP4416365B2 (ja) | 2010-02-17 |
EP1215884A3 (en) | 2004-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06A | Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 02/09/2014, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 14A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2342 DE 24-11-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |