BR9912527A - Método e aparelho para classificação de imagem e detecção de retìcula - Google Patents
Método e aparelho para classificação de imagem e detecção de retìculaInfo
- Publication number
- BR9912527A BR9912527A BR9912527-7A BR9912527A BR9912527A BR 9912527 A BR9912527 A BR 9912527A BR 9912527 A BR9912527 A BR 9912527A BR 9912527 A BR9912527 A BR 9912527A
- Authority
- BR
- Brazil
- Prior art keywords
- image
- halftone
- detection
- pixels
- image classification
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 238000001514 detection method Methods 0.000 title abstract 3
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
- H04N1/40062—Discrimination between different image types, e.g. two-tone, continuous tone
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Analysis (AREA)
- Facsimile Image Signal Circuits (AREA)
- Color, Gradation (AREA)
- Color Image Communication Systems (AREA)
Abstract
Patente de Invenção: <B>"MéTODO E APARELHO PARA CLASSIFICAçãO DE IMAGEM E DETECçãO DE RETìCULA"<D>. Um método e aparelho para classificação de imagem inclui uma primeira modalidade na qual a detecção de retícula é executada baseada no tamanho de um limite estabelecido entre uma classe de pixel claros e uma classe de pixel escuros e adicionalmente baseada na informação da imagem contida dentro de cada plano de imagem único (isto é, dentro de um plano de cor). Esta modalidade da invenção é baseada na propriedade característica das imagens de que as áreas de retícula dentro da imagem possuem parâmetros de limite maiores do que as área que não são de retícula dentro da imagem. Uma segunda modalidade da invenção igualmente preferida proporciona uma técnica de correlação de diferença de cor cruzada que é utilizada para detectar pixel de retícula.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/111,047 US6185335B1 (en) | 1998-07-07 | 1998-07-07 | Method and apparatus for image classification and halftone detection |
PCT/US1999/015354 WO2000002378A1 (en) | 1998-07-07 | 1999-07-07 | Method and apparatus for image classification and halftone detection |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9912527A true BR9912527A (pt) | 2001-05-02 |
Family
ID=22336325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9912527-7A BR9912527A (pt) | 1998-07-07 | 1999-07-07 | Método e aparelho para classificação de imagem e detecção de retìcula |
Country Status (8)
Country | Link |
---|---|
US (1) | US6185335B1 (pt) |
EP (1) | EP1093697B1 (pt) |
JP (1) | JP2003505893A (pt) |
AU (1) | AU741883B2 (pt) |
BR (1) | BR9912527A (pt) |
CA (1) | CA2331373A1 (pt) |
DE (1) | DE69934799T2 (pt) |
WO (1) | WO2000002378A1 (pt) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7148998B2 (en) * | 2002-05-31 | 2006-12-12 | Hewlett-Packard Development Company, L.P. | System and method for automatic descreening of digital images |
US7313268B2 (en) * | 2002-10-31 | 2007-12-25 | Eastman Kodak Company | Method for using effective spatio-temporal image recomposition to improve scene classification |
US7453604B2 (en) * | 2003-06-30 | 2008-11-18 | Xerox Corporation | Systems and methods for estimating an image marking process using scanned image attributes |
US20040264770A1 (en) * | 2003-06-30 | 2004-12-30 | Xerox Corporation | Systems and methods for associating color profiles with a scanned input image using spatial attributes |
US20040264769A1 (en) * | 2003-06-30 | 2004-12-30 | Xerox Corporation | Systems and methods for associating color profiles with a scanned input image using spatial attributes |
US20040264768A1 (en) * | 2003-06-30 | 2004-12-30 | Xerox Corporation | Systems and methods for associating color profiles with a scanned input image using spatial attributes |
US7474783B2 (en) * | 2003-06-30 | 2009-01-06 | Xerox Corporation | Systems and methods for associating color profiles with a scanned input image using spatial attributes |
US7336401B2 (en) * | 2003-12-19 | 2008-02-26 | Xerox Corporation | Systems and methods for estimating an image marking process using event mapping of scanned image attributes |
US7929161B2 (en) * | 2004-04-15 | 2011-04-19 | Hewlett-Packard Development Company, L.P. | Image processing system and method |
US7684079B2 (en) | 2004-12-02 | 2010-03-23 | Canon Kabushiki Kaisha | Image forming apparatus and its control method |
JP6078038B2 (ja) | 2014-10-31 | 2017-02-08 | 株式会社Pfu | 画像処理装置、画像処理方法、および、プログラム |
US9628635B1 (en) | 2016-06-30 | 2017-04-18 | Xerox Corporation | Systems and methods for halftone frequency detection |
Family Cites Families (25)
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US4194221A (en) | 1978-12-26 | 1980-03-18 | Xerox Corporation | Automatic multimode continuous halftone line copy reproduction |
US4554593A (en) | 1981-01-02 | 1985-11-19 | International Business Machines Corporation | Universal thresholder/discriminator |
US4403257A (en) | 1982-03-19 | 1983-09-06 | Xerox Corporation | Halftone detection and delineation |
JPS5954376A (ja) | 1982-09-21 | 1984-03-29 | Konishiroku Photo Ind Co Ltd | 画像処理方法 |
US4577235A (en) | 1984-08-20 | 1986-03-18 | The Mead Corporation | Text/continuous tone image decision processor |
EP0187724B1 (en) | 1985-01-10 | 1992-09-30 | Nippon Telegraph And Telephone Corporation | Halftone picture processing apparatus |
JPS61225975A (ja) | 1985-03-29 | 1986-10-07 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | 2値信号への変換方法 |
US5142593A (en) | 1986-06-16 | 1992-08-25 | Kabushiki Kaisha Toshiba | Apparatus and method for classifying feature data at a high speed |
JP2617469B2 (ja) | 1987-05-11 | 1997-06-04 | 株式会社リコー | 画像領域識別装置 |
JP2702928B2 (ja) | 1987-06-19 | 1998-01-26 | 株式会社日立製作所 | 画像入力装置 |
JPH0286369A (ja) | 1988-09-22 | 1990-03-27 | Toshiba Corp | 画像処理装置 |
JPH02165775A (ja) | 1988-12-20 | 1990-06-26 | Toshiba Corp | 画像処理装置 |
US5268771A (en) | 1989-02-15 | 1993-12-07 | Hitachi, Ltd. | Image restoration processing system and method |
US5119185A (en) | 1989-05-10 | 1992-06-02 | Canon Kabushiki Kaisha | Image processing apparatus including a minimum value signal detector unit |
US5193122A (en) | 1990-12-03 | 1993-03-09 | Xerox Corporation | High speed halftone detection technique |
JP2871127B2 (ja) | 1991-01-30 | 1999-03-17 | 三菱電機株式会社 | 画像処理装置及び方法 |
JP3276985B2 (ja) | 1991-06-27 | 2002-04-22 | ゼロックス・コーポレーション | イメージピクセル処理方法 |
US5317419A (en) | 1991-08-07 | 1994-05-31 | Konica Corporation | Image recognition apparatus |
US5381241A (en) | 1991-08-13 | 1995-01-10 | Sharp Corporation | Method for discriminating between figure and text areas of an image |
US5410619A (en) | 1991-09-03 | 1995-04-25 | Ricoh Company, Ltd. | Digital image processing apparatus for processing a variety of types of input image data |
IL101029A (en) | 1992-02-20 | 1996-01-19 | Scitex Corp Ltd | Method for identifying elephant type |
JP2894113B2 (ja) | 1992-11-04 | 1999-05-24 | 松下電器産業株式会社 | 画像クラスタリング装置 |
US5341226A (en) | 1993-04-22 | 1994-08-23 | Xerox Corporation | Automatic image segmentation for color documents |
US5339172A (en) | 1993-06-11 | 1994-08-16 | Xerox Corporation | Apparatus and method for segmenting an input image in one of a plurality of modes |
US5546474A (en) | 1993-12-21 | 1996-08-13 | Hewlett-Packard Company | Detection of photo regions in digital images |
-
1998
- 1998-07-07 US US09/111,047 patent/US6185335B1/en not_active Expired - Lifetime
-
1999
- 1999-07-07 BR BR9912527-7A patent/BR9912527A/pt not_active IP Right Cessation
- 1999-07-07 AU AU49740/99A patent/AU741883B2/en not_active Ceased
- 1999-07-07 CA CA002331373A patent/CA2331373A1/en not_active Abandoned
- 1999-07-07 WO PCT/US1999/015354 patent/WO2000002378A1/en active IP Right Grant
- 1999-07-07 JP JP2000558660A patent/JP2003505893A/ja not_active Abandoned
- 1999-07-07 EP EP99933749A patent/EP1093697B1/en not_active Expired - Lifetime
- 1999-07-07 DE DE69934799T patent/DE69934799T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6185335B1 (en) | 2001-02-06 |
WO2000002378A1 (en) | 2000-01-13 |
JP2003505893A (ja) | 2003-02-12 |
DE69934799D1 (de) | 2007-02-22 |
DE69934799T2 (de) | 2007-10-11 |
EP1093697A1 (en) | 2001-04-25 |
AU4974099A (en) | 2000-01-24 |
CA2331373A1 (en) | 2000-01-13 |
EP1093697B1 (en) | 2007-01-10 |
AU741883B2 (en) | 2001-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 4A, 5A, 6A, 7A E 8A ANUIDADES |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1911 DE 21/08/2007. |