WO2008107985A1 - パターン検出プログラム、パターン検出方法およびパターン検出装置 - Google Patents

パターン検出プログラム、パターン検出方法およびパターン検出装置 Download PDF

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Publication number
WO2008107985A1
WO2008107985A1 PCT/JP2007/054465 JP2007054465W WO2008107985A1 WO 2008107985 A1 WO2008107985 A1 WO 2008107985A1 JP 2007054465 W JP2007054465 W JP 2007054465W WO 2008107985 A1 WO2008107985 A1 WO 2008107985A1
Authority
WO
WIPO (PCT)
Prior art keywords
pattern
gray scale
scale level
value
pixel values
Prior art date
Application number
PCT/JP2007/054465
Other languages
English (en)
French (fr)
Inventor
Yusaku Fujii
Katsuhito Fujimoto
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to JP2009502401A priority Critical patent/JP4516629B2/ja
Priority to PCT/JP2007/054465 priority patent/WO2008107985A1/ja
Publication of WO2008107985A1 publication Critical patent/WO2008107985A1/ja

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
    • H04N1/40062—Discrimination between different image types, e.g. two-tone, continuous tone
    • 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods
    • H04N1/32208—Spatial or amplitude domain methods involving changing the magnitude of selected pixels, e.g. overlay of information or super-imposition
    • 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods
    • H04N1/32229—Spatial or amplitude domain methods with selective or adaptive application of the additional information, e.g. in selected regions of the image
    • 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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods
    • H04N1/32251—Spatial or amplitude domain methods in multilevel data, e.g. greyscale or continuous tone data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3261—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of multimedia information, e.g. a sound signal
    • H04N2201/3266—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of multimedia information, e.g. a sound signal of text or character information, e.g. text accompanying an image

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Editing Of Facsimile Originals (AREA)

Abstract

　パターン検出装置は、入力を受け付けた複数の文書画像から境界値αを推定する。ここで、境界値αとは、文書画像内で文字、図表および透かしパターンを構成する画素値と、背景を構成する画素値とを切り分けるための値である。次に、パターン検出装置は、各文書画像について、境界値α以下の画素値からなる階調ごとの画像をそれぞれ作成する。続いて、パターン検出装置は、作成された各画像のそれぞれを同一階調間でマッチングし、マッチングスコアの平均値が最大となる階調を特定する。そして、パターン検出装置は、特定された階調の各画像を累積加算して、累積加算された画像から透かし文字らしき領域（透かし文字が埋め込まれている蓋然性の高い領域）を抽出する。
PCT/JP2007/054465 2007-03-07 2007-03-07 パターン検出プログラム、パターン検出方法およびパターン検出装置 WO2008107985A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009502401A JP4516629B2 (ja) 2007-03-07 2007-03-07 パターン検出プログラム、パターン検出方法およびパターン検出装置
PCT/JP2007/054465 WO2008107985A1 (ja) 2007-03-07 2007-03-07 パターン検出プログラム、パターン検出方法およびパターン検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/054465 WO2008107985A1 (ja) 2007-03-07 2007-03-07 パターン検出プログラム、パターン検出方法およびパターン検出装置

Publications (1)

Publication Number Publication Date
WO2008107985A1 true WO2008107985A1 (ja) 2008-09-12

Family

ID=39737890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/054465 WO2008107985A1 (ja) 2007-03-07 2007-03-07 パターン検出プログラム、パターン検出方法およびパターン検出装置

Country Status (2)

Country Link
JP (1) JP4516629B2 (ja)
WO (1) WO2008107985A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014175757A (ja) * 2013-03-07 2014-09-22 Kddi Corp 分割要素の結合による電子透かしを生成する電子透かし処理システム、サーバ、プログラム及び方法
CN106991423A (zh) * 2016-01-21 2017-07-28 腾讯科技（深圳）有限公司 识别规格图片中是否包含水印的方法及装置
JP7524723B2 (ja) 2020-11-16 2024-07-30 コニカミノルタ株式会社 文書処理装置、システム、文書処理方法及びコンピュータープログラム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115351713B (zh) * 2022-10-19 2023-06-02 武汉艾极涂科技有限公司 一种基于图像识别的喷砂方法、装置、设备及存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000049985A (ja) * 1998-07-28 2000-02-18 Canon Inc 画像処理デバイス及び画像処理装置及び画像処理方法
JP2004096375A (ja) * 2002-08-30 2004-03-25 Fujitsu Ltd 画像コード化装置、画像コード復調装置、方法及びプログラム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000049985A (ja) * 1998-07-28 2000-02-18 Canon Inc 画像処理デバイス及び画像処理装置及び画像処理方法
JP2004096375A (ja) * 2002-08-30 2004-03-25 Fujitsu Ltd 画像コード化装置、画像コード復調装置、方法及びプログラム

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014175757A (ja) * 2013-03-07 2014-09-22 Kddi Corp 分割要素の結合による電子透かしを生成する電子透かし処理システム、サーバ、プログラム及び方法
CN106991423A (zh) * 2016-01-21 2017-07-28 腾讯科技（深圳）有限公司 识别规格图片中是否包含水印的方法及装置
CN106991423B (zh) * 2016-01-21 2019-06-07 腾讯科技（深圳）有限公司 识别规格图片中是否包含水印的方法及装置
JP7524723B2 (ja) 2020-11-16 2024-07-30 コニカミノルタ株式会社 文書処理装置、システム、文書処理方法及びコンピュータープログラム

Also Published As

Publication number Publication date
JP4516629B2 (ja) 2010-08-04
JPWO2008107985A1 (ja) 2010-06-10

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