FR2905499B1 - Appareil et procede d'elimination de bruit de caracteres - Google Patents

Appareil et procede d'elimination de bruit de caracteres

Info

Publication number
FR2905499B1
FR2905499B1 FR0757326A FR0757326A FR2905499B1 FR 2905499 B1 FR2905499 B1 FR 2905499B1 FR 0757326 A FR0757326 A FR 0757326A FR 0757326 A FR0757326 A FR 0757326A FR 2905499 B1 FR2905499 B1 FR 2905499B1
Authority
FR
France
Prior art keywords
area
noise
density conversion
character noise
density
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.)
Active
Application number
FR0757326A
Other languages
English (en)
Other versions
FR2905499A1 (fr
Inventor
Masanori Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of FR2905499A1 publication Critical patent/FR2905499A1/fr
Application granted granted Critical
Publication of FR2905499B1 publication Critical patent/FR2905499B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G06T5/70—
    • G06T5/94—
    • 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
    • G06V30/14—Image acquisition
    • G06V30/148—Segmentation of character regions
    • G06V30/155—Removing patterns interfering with the pattern to be recognised, such as ruled lines or underlines
    • 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
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
    • 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
FR0757326A 2006-09-04 2007-09-03 Appareil et procede d'elimination de bruit de caracteres Active FR2905499B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006239554A JP4238902B2 (ja) 2006-09-04 2006-09-04 文字ノイズ除去装置、文字ノイズ除去方法、文字ノイズ除去プログラム

Publications (2)

Publication Number Publication Date
FR2905499A1 FR2905499A1 (fr) 2008-03-07
FR2905499B1 true FR2905499B1 (fr) 2012-06-29

Family

ID=39092251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0757326A Active FR2905499B1 (fr) 2006-09-04 2007-09-03 Appareil et procede d'elimination de bruit de caracteres

Country Status (3)

Country Link
US (1) US8014574B2 (fr)
JP (1) JP4238902B2 (fr)
FR (1) FR2905499B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4821663B2 (ja) * 2007-03-12 2011-11-24 日本電気株式会社 文字ノイズ除去装置、文字ノイズ除去方法、文字ノイズ除去プログラム
JP5007953B2 (ja) * 2008-03-14 2012-08-22 日本電気株式会社 画像処理装置、画像処理方法およびプログラム
FR2939002B1 (fr) * 2008-11-21 2010-12-24 Thales Sa Procede d'affichage et dispositif de visualisation permettant de securiser l'ecran contre le gel d'image.
JP5534411B2 (ja) * 2010-01-20 2014-07-02 日本電気株式会社 画像処理装置
EP2639762A1 (fr) 2010-11-08 2013-09-18 Nec Corporation Appareil de vérification d'image
JP5958023B2 (ja) 2012-03-30 2016-07-27 ブラザー工業株式会社 画像処理装置および画像処理プログラム
JP5935454B2 (ja) * 2012-03-30 2016-06-15 ブラザー工業株式会社 画像処理装置および画像処理プログラム
JP2018022343A (ja) * 2016-08-03 2018-02-08 株式会社東芝 画像処理装置、および画像処理方法
JP2019121187A (ja) * 2018-01-05 2019-07-22 富士通株式会社 画像処理装置、画像処理方法および画像処理プログラム
US10909406B2 (en) * 2018-01-08 2021-02-02 Newgen Software Technologies Limited Image processing system and method

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JPH096957A (ja) 1995-06-23 1997-01-10 Toshiba Corp 濃度画像の２値化方法および画像２値化装置
JP3545506B2 (ja) * 1995-08-21 2004-07-21 株式会社東芝 特定色領域抽出方式および特定色領域除去方式
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JP4232804B2 (ja) 2006-08-25 2009-03-04 日本電気株式会社 画像濃度変換方法、画像強調処理装置、およびそのプログラム
US7643010B2 (en) 2007-01-03 2010-01-05 Apple Inc. Peripheral pixel noise reduction

Also Published As

Publication number Publication date
US20080056546A1 (en) 2008-03-06
US8014574B2 (en) 2011-09-06
FR2905499A1 (fr) 2008-03-07
JP4238902B2 (ja) 2009-03-18
JP2008065390A (ja) 2008-03-21

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