BR0108856A - Método aperfeiçoado para binarizaçao de imagens - Google Patents
Método aperfeiçoado para binarizaçao de imagensInfo
- Publication number
- BR0108856A BR0108856A BR0108856-4A BR0108856A BR0108856A BR 0108856 A BR0108856 A BR 0108856A BR 0108856 A BR0108856 A BR 0108856A BR 0108856 A BR0108856 A BR 0108856A
- Authority
- BR
- Brazil
- Prior art keywords
- gray
- pixels
- level
- improved method
- image binarization
- 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
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/136—Segmentation; Edge detection involving thresholding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/16—Image preprocessing
- G06V30/162—Quantising the image signal
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
- G06T2207/10008—Still image; Photographic image from scanner, fax or copier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30176—Document
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
Landscapes
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Image Input (AREA)
- Character Input (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Image Analysis (AREA)
Abstract
"MéTODO APERFEIçOADO PARA BINARIZAçãO DE IMAGENS". Descreve-se um método para binarizar uma imagem de entrada de nível cinza (20), que inclui uma pluralidade de pixels que têm valores de nível cinza respectivos. Um limite inferior e um limite inferior são determinados. Um primeiro valor binário é designado para os pixels na imagem de nível cinza, que têm valores de nível cinza acima do limite superior, e um segundo valor binário é designado para os pixels na imagem de nível cinza, que têm valores de nível cinza abaixo do limite inferior. Os pixels em um grupo intermediário, que têm valores de nível cinza entre os limites inferiores e superiores, são processados de modo a determinar designações ótimas dos pixels no grupo intermediário para o primeiro e segundo valores binários.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/519,446 US6351566B1 (en) | 2000-03-02 | 2000-03-02 | Method for image binarization |
| PCT/IL2001/000163 WO2001065465A2 (en) | 2000-03-02 | 2001-02-21 | Improved method for image binarization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0108856A true BR0108856A (pt) | 2005-01-11 |
Family
ID=24068340
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0108856-4A BR0108856A (pt) | 2000-03-02 | 2001-02-21 | Método aperfeiçoado para binarizaçao de imagens |
| BRPI0108856A BRPI0108856B8 (pt) | 2000-03-02 | 2001-02-21 | método e aparelho para binarizaçao de imagem |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0108856A BRPI0108856B8 (pt) | 2000-03-02 | 2001-02-21 | método e aparelho para binarizaçao de imagem |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6351566B1 (pt) |
| EP (1) | EP1269394B1 (pt) |
| JP (1) | JP3953817B2 (pt) |
| AT (1) | ATE383625T1 (pt) |
| AU (1) | AU2001235931A1 (pt) |
| BR (2) | BR0108856A (pt) |
| CA (1) | CA2397805C (pt) |
| DE (1) | DE60132315T2 (pt) |
| IL (2) | IL151545A0 (pt) |
| MX (1) | MXPA02008296A (pt) |
| WO (1) | WO2001065465A2 (pt) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6738496B1 (en) * | 1999-11-01 | 2004-05-18 | Lockheed Martin Corporation | Real time binarization of gray images |
| US6587585B1 (en) * | 2000-05-23 | 2003-07-01 | Ncr Corporation | Method of parameterizing a threshold curve for a binarization program and an apparatus therefor |
| US7417771B2 (en) * | 2001-06-26 | 2008-08-26 | Sharp Laboratories Of America, Inc. | Error diffusion halftoning system |
| CN1213592C (zh) * | 2001-07-31 | 2005-08-03 | 佳能株式会社 | 采用自适应二值化的图象处理方法和设备 |
| US7136515B2 (en) * | 2001-09-13 | 2006-11-14 | Intel Corporation | Method and apparatus for providing a binary fingerprint image |
| JP4003428B2 (ja) * | 2001-10-10 | 2007-11-07 | セイコーエプソン株式会社 | 小切手等処理装置及び小切手等処理方法 |
| KR100484141B1 (ko) * | 2002-06-05 | 2005-04-18 | 삼성전자주식회사 | 영상 이진화 장치 및 방법 |
| KR100532275B1 (ko) * | 2002-12-11 | 2005-11-29 | 삼성전자주식회사 | 이미지 압축방법 |
| US7315398B2 (en) * | 2003-12-19 | 2008-01-01 | Xerox Corporation | Multi-level error diffusion with color image data |
| US7295347B2 (en) * | 2003-12-19 | 2007-11-13 | Xerox Corporation | Image processing method for generating multi-level data |
| JP2006309650A (ja) * | 2005-05-02 | 2006-11-09 | Calsonic Kansei Corp | ナンバー認識装置及方法 |
| US7724955B2 (en) * | 2005-05-31 | 2010-05-25 | Xerox Corporation | Apparatus and method for auto windowing using multiple white thresholds |
| US7734092B2 (en) * | 2006-03-07 | 2010-06-08 | Ancestry.Com Operations Inc. | Multiple image input for optical character recognition processing systems and methods |
| US20080005684A1 (en) * | 2006-06-29 | 2008-01-03 | Xerox Corporation | Graphical user interface, system and method for independent control of different image types |
| US20080101703A1 (en) * | 2006-10-30 | 2008-05-01 | Lockheed Martin Corporation | Systems and methods for recognizing shapes in an image |
| US8351720B2 (en) * | 2008-04-24 | 2013-01-08 | Hewlett-Packard Development Company, L.P. | Method and system providing edge enhanced image binarization |
| US8117134B2 (en) * | 2008-10-16 | 2012-02-14 | Xerox Corporation | Neutral pixel correction for proper marked color printing |
| CN101727582B (zh) * | 2008-10-22 | 2014-02-19 | 富士通株式会社 | 文档图像二值化方法及其装置，以及文档图像处理器 |
| TWI463415B (zh) * | 2009-03-06 | 2014-12-01 | Omnivision Tech Inc | 以物件為基礎之光學字元辨識之預處理演算法 |
| US8406554B1 (en) * | 2009-12-02 | 2013-03-26 | Jadavpur University | Image binarization based on grey membership parameters of pixels |
| KR100977558B1 (ko) * | 2009-12-22 | 2010-08-23 | 전자부품연구원 | 적외선 스크린 방식의 공간 터치 장치 |
| JP5725276B2 (ja) * | 2010-08-03 | 2015-05-27 | 富士ゼロックス株式会社 | 二値化処理装置、画像処理装置、二値化処理プログラム、画像処理プログラム |
| US8594446B2 (en) | 2012-01-12 | 2013-11-26 | Eastman Kodak Company | Method for enhancing a digitized document |
| US8937749B2 (en) | 2012-03-09 | 2015-01-20 | Xerox Corporation | Integrated color detection and color pixel counting for billing |
| JP5870826B2 (ja) * | 2012-04-11 | 2016-03-01 | コニカミノルタ株式会社 | 画像処理装置、画像処理方法、およびコンピュータプログラム |
| CN104346599B (zh) * | 2013-07-23 | 2019-09-17 | 深圳市腾讯计算机系统有限公司 | 一种色彩边缘的检测方法及图像处理设备 |
| KR102208893B1 (ko) | 2013-12-30 | 2021-01-28 | 삼성전자주식회사 | 디스플레이 장치 및 디스플레이 장치의 채널 맵 관리 방법 |
| US9552528B1 (en) * | 2014-03-03 | 2017-01-24 | Accusoft Corporation | Method and apparatus for image binarization |
| US10127672B2 (en) * | 2015-10-12 | 2018-11-13 | International Business Machines Corporation | Separation of foreground and background in medical images |
| US10416681B2 (en) * | 2017-07-12 | 2019-09-17 | Mitsubishi Electric Research Laboratories, Inc. | Barcode: global binary patterns for fast visual inference |
| US10878596B2 (en) | 2018-11-29 | 2020-12-29 | International Business Machines Corporation | Object oriented image normalization |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4520505A (en) * | 1981-12-23 | 1985-05-28 | Mitsubishi Denki Kabushiki Kaisha | Character reading device |
| US5067162A (en) | 1986-06-30 | 1991-11-19 | Identix Incorporated | Method and apparatus for verifying identity using image correlation |
| US4832447A (en) | 1987-12-04 | 1989-05-23 | Board Of Trustees Operating Michigan State University | Joint transform image correlation using a nonlinear spatial light modulator at the fourier plane |
| IL91220A (en) | 1989-08-04 | 1995-03-30 | Ibm Israel | Compression of information |
| JPH07104921B2 (ja) * | 1989-11-17 | 1995-11-13 | 松下電器産業株式会社 | 画像閾値決定方法 |
| US5191525A (en) | 1990-01-16 | 1993-03-02 | Digital Image Systems, Corporation | System and method for extraction of data from documents for subsequent processing |
| EP0679313A1 (en) | 1993-11-16 | 1995-11-02 | International Business Machines Corporation | Method and apparatus for alignment of images for template elimination |
| US5715325A (en) | 1995-08-30 | 1998-02-03 | Siemens Corporate Research, Inc. | Apparatus and method for detecting a face in a video image |
-
2000
- 2000-03-02 US US09/519,446 patent/US6351566B1/en not_active Expired - Lifetime
-
2001
- 2001-02-21 WO PCT/IL2001/000163 patent/WO2001065465A2/en active IP Right Grant
- 2001-02-21 BR BR0108856-4A patent/BR0108856A/pt active IP Right Grant
- 2001-02-21 MX MXPA02008296A patent/MXPA02008296A/es active IP Right Grant
- 2001-02-21 CA CA002397805A patent/CA2397805C/en not_active Expired - Lifetime
- 2001-02-21 BR BRPI0108856A patent/BRPI0108856B8/pt unknown
- 2001-02-21 EP EP01908074A patent/EP1269394B1/en not_active Expired - Lifetime
- 2001-02-21 DE DE60132315T patent/DE60132315T2/de not_active Expired - Lifetime
- 2001-02-21 AT AT01908074T patent/ATE383625T1/de not_active IP Right Cessation
- 2001-02-21 IL IL15154501A patent/IL151545A0/xx active IP Right Grant
- 2001-02-21 AU AU2001235931A patent/AU2001235931A1/en not_active Abandoned
- 2001-02-21 JP JP2001564084A patent/JP3953817B2/ja not_active Expired - Lifetime
-
2002
- 2002-08-29 IL IL151545A patent/IL151545A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1269394A4 (en) | 2006-11-22 |
| JP2003525560A (ja) | 2003-08-26 |
| BRPI0108856B1 (pt) | 2018-02-27 |
| CA2397805A1 (en) | 2001-09-07 |
| DE60132315D1 (de) | 2008-02-21 |
| EP1269394A2 (en) | 2003-01-02 |
| IL151545A0 (en) | 2003-04-10 |
| WO2001065465A3 (en) | 2002-01-17 |
| CA2397805C (en) | 2007-05-01 |
| JP3953817B2 (ja) | 2007-08-08 |
| DE60132315T2 (de) | 2009-01-02 |
| BRPI0108856B8 (pt) | 2018-08-14 |
| AU2001235931A1 (en) | 2001-09-12 |
| ATE383625T1 (de) | 2008-01-15 |
| WO2001065465A2 (en) | 2001-09-07 |
| MXPA02008296A (es) | 2002-12-09 |
| IL151545A (en) | 2007-12-03 |
| US6351566B1 (en) | 2002-02-26 |
| EP1269394B1 (en) | 2008-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR0108856A (pt) | Método aperfeiçoado para binarizaçao de imagens | |
| EP0825547A3 (en) | Two-dimensional code reader | |
| DE60118240D1 (de) | Methode zur bildanalyse | |
| EP1282076A3 (en) | Self-adaptive binarization of digital images | |
| KR900017371A (ko) | 디더(dither) 처리방법 | |
| EP1168289A3 (en) | Display device for creating intermediate gradation levels in pseudo manner and imaging signal processing method | |
| FI963266A (fi) | Menetelmä lipolyyttisen entsyymin muunnoksen valmistamiseksi | |
| GB2364461B (en) | Correcting defect pixels in a digital image | |
| IL151052A0 (en) | Method for analysing fingerprint images | |
| EP1473658A3 (en) | Preprocessing device and method for recognizing image characters | |
| IT1252178B (it) | Metodo per rivelare e classificare automaticamente caratteristiche in immagini sonar | |
| ATE322050T1 (de) | Verfahren zum erfassen von zweidimensionalen codes | |
| KR910010357A (ko) | 화상문턱값 결정방법 | |
| TW429348B (en) | The method of dividing an image | |
| EP0781034A3 (en) | Image processing apparatus and method | |
| EP1300779A3 (en) | Form recognition system, form recognition method, program and storage medium | |
| NO20016133D0 (no) | Fremgangsmåte ved binarisering av bilder | |
| WO2002042883A3 (en) | Method and apparatus for smoothing text outlines | |
| CA2389599A1 (en) | Method and circuit for emphasizing contour | |
| JP2005027271A5 (pt) | ||
| EP1209617A3 (en) | Information processing method and information processing apparatus | |
| EP1075090A3 (en) | A CDMA demodulating method and demodulator | |
| JPS6481080A (en) | Image processing system | |
| EP1030270A3 (en) | Image binarization method and image processing system using the same | |
| EP0880272A3 (en) | Method of recognizing printing region |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
| B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ARTIGO 8O COMBINADO COM ARTIGO 13, ARTIGO 10 E ARTIGO 25 DA LPI. |
|
| B12B | Appeal against refusal [chapter 12.2 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] | ||
| B16C | Correction of notification of the grant [chapter 16.3 patent gazette] |