JP5436402B2 - メッセージを構造化された形状内に埋め込む方法およびシステム - Google Patents

メッセージを構造化された形状内に埋め込む方法およびシステム Download PDF

Info

Publication number
JP5436402B2
JP5436402B2 JP2010276493A JP2010276493A JP5436402B2 JP 5436402 B2 JP5436402 B2 JP 5436402B2 JP 2010276493 A JP2010276493 A JP 2010276493A JP 2010276493 A JP2010276493 A JP 2010276493A JP 5436402 B2 JP5436402 B2 JP 5436402B2
Authority
JP
Japan
Prior art keywords
glyph
data segment
modified
symbol
landmarks
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.)
Expired - Fee Related
Application number
JP2010276493A
Other languages
English (en)
Japanese (ja)
Other versions
JP2011139449A5 (enExample
JP2011139449A (ja
Inventor
シャンタヌ・ラーネ
サマルジット・ダス
アンソニー・ヴェトロ
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.)
Mitsubishi Electric Research Laboratories Inc
Original Assignee
Mitsubishi Electric Research Laboratories Inc
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 Mitsubishi Electric Research Laboratories Inc filed Critical Mitsubishi Electric Research Laboratories Inc
Publication of JP2011139449A publication Critical patent/JP2011139449A/ja
Publication of JP2011139449A5 publication Critical patent/JP2011139449A5/ja
Application granted granted Critical
Publication of JP5436402B2 publication Critical patent/JP5436402B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H04N1/32—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
    • H04N1/3224—Spatial or amplitude domain methods with selective or adaptive application of the additional information, e.g. in selected regions of the image in edge regions
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V30/32—Digital ink
    • G06V30/333—Preprocessing; Feature extraction
    • G06V30/347—Sampling; Contour coding; Stroke extraction
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0051—Embedding of the watermark in the spatial domain
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0062—Embedding of the watermark in text images, e.g. watermarking text documents using letter skew, letter distance or row distance

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
JP2010276493A 2009-12-30 2010-12-13 メッセージを構造化された形状内に埋め込む方法およびシステム Expired - Fee Related JP5436402B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/650,289 2009-12-30
US12/650,289 US8630444B2 (en) 2009-12-30 2009-12-30 Method for embedding messages into structure shapes

Publications (3)

Publication Number Publication Date
JP2011139449A JP2011139449A (ja) 2011-07-14
JP2011139449A5 JP2011139449A5 (enExample) 2013-11-28
JP5436402B2 true JP5436402B2 (ja) 2014-03-05

Family

ID=44187627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010276493A Expired - Fee Related JP5436402B2 (ja) 2009-12-30 2010-12-13 メッセージを構造化された形状内に埋め込む方法およびシステム

Country Status (2)

Country Link
US (1) US8630444B2 (enExample)
JP (1) JP5436402B2 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2753508C (en) 2011-09-23 2013-07-30 Guy Le Henaff Tracing a document in an electronic publication
CN104396225B (zh) * 2012-07-05 2017-05-31 株式会社东芝 向对象嵌入数据的装置及方法、以及抽取所嵌入的数据的装置及方法
US20160124031A1 (en) * 2014-11-04 2016-05-05 Walid G. Morsi Ibrahim Smart multi-purpose monitoring system using wavelet design and machine learning for smart grid applications
CN109766978B (zh) * 2019-01-17 2020-06-16 北京悦时网络科技发展有限公司 一种词码的生成方法、识别方法、装置、存储介质
US10984173B2 (en) * 2019-02-26 2021-04-20 Adobe Inc. Vector-based glyph style transfer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6256398B1 (en) * 1998-08-22 2001-07-03 Kenneth H. P. Chang Encoding and decoding a message within an image
US7106332B2 (en) * 2003-03-25 2006-09-12 Mitsubishi Electric Research Laboratories, Inc. Method for converting two-dimensional pen strokes to distance fields
JP4324058B2 (ja) * 2004-08-31 2009-09-02 キヤノン株式会社 画像処理装置及びその方法
US20060061088A1 (en) * 2004-09-23 2006-03-23 Xerox Corporation Method and apparatus for internet coupon fraud deterrence
WO2007049340A1 (ja) * 2005-10-25 2007-05-03 Fujitsu Limited 電子透かしの埋め込み及び検出

Also Published As

Publication number Publication date
US20110158464A1 (en) 2011-06-30
US8630444B2 (en) 2014-01-14
JP2011139449A (ja) 2011-07-14

Similar Documents

Publication Publication Date Title
US8427509B2 (en) Method for embedding messages into documents using distance fields
US7536026B2 (en) Image processing apparatus and method
Amano et al. A feature calibration method for watermarking of document images
JP4004528B2 (ja) デジタル像符牒の処理方法及びシステム
US7106884B2 (en) Digital watermark embedding apparatus for document, digital watermark extraction apparatus for document, and their control method
US20040001606A1 (en) Watermark fonts
CN101155239B (zh) 电子水印嵌入装置及检测装置
US8275168B2 (en) Orientation free watermarking message decoding from document scans
US10949509B2 (en) Watermark embedding and extracting method for protecting documents
US7287284B2 (en) Information processing method and apparatus, and computer program and computer-readable storage medium
Bhattacharjya et al. Data embedding in text for a copier system
JP5436402B2 (ja) メッセージを構造化された形状内に埋め込む方法およびシステム
Tan et al. Print-Scan Resilient Text Image Watermarking Based on Stroke Direction Modulation for Chinese Document Authentication.
CN101160950B (zh) 图像处理装置和图像处理方法
US8588460B2 (en) Electronic watermark embedding device, electronic watermark detecting device, and programs therefor
CN116977149A (zh) 一种针对文本图像的抗打印扫描数字水印的嵌入及其提取方法
Mizumoto et al. Robustness investigation of DCT digital watermark for printing and scanning
Liu et al. Researches on text image watermarking scheme based on the structure of character glyph
Das et al. Hiding information inside structured shapes
CN114201944A (zh) 字体变形方法及其构成的水印嵌入和提取方法
Kasprzak et al. Printed steganography applied for the authentication of identity photos in face verification
CN118396825A (zh) 数字水印添加方法、数字水印检测方法及相关设备
Zeng Steganography for font-dependant binary documents
JP2003189085A (ja) 電子透かし装置及び電子透かし方法
US20100142004A1 (en) Method for Embedding a Message into a Document

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20131009

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20131009

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20131009

TRDD Decision of grant or rejection written
A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20131101

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20131112

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20131210

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees