BRPI0417353A - sistema e método para ocultar dados reversìveis robustos e recuperação de dados no domìnio espacial - Google Patents

sistema e método para ocultar dados reversìveis robustos e recuperação de dados no domìnio espacial

Info

Publication number
BRPI0417353A
BRPI0417353A BRPI0417353-8A BRPI0417353A BRPI0417353A BR PI0417353 A BRPI0417353 A BR PI0417353A BR PI0417353 A BRPI0417353 A BR PI0417353A BR PI0417353 A BRPI0417353 A BR PI0417353A
Authority
BR
Brazil
Prior art keywords
pixel
subsets
hiding
spatial domain
data
Prior art date
Application number
BRPI0417353-8A
Other languages
English (en)
Inventor
Yun-Qing Shi
Zhi-Cheng Ni
Nirwan Ansari
Original Assignee
New Jersey Tech Inst
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 New Jersey Tech Inst filed Critical New Jersey Tech Inst
Publication of BRPI0417353A publication Critical patent/BRPI0417353A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • 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
    • G06T1/0028—Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
    • 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
    • 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
    • H04N1/32251—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
    • 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
    • H04N1/32309—Methods relating to embedding, encoding, decoding, detection or retrieval operations in colour image data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H04N21/2541—Rights Management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • 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
    • G06T2201/0061—Embedding of the watermark in each block of the image, e.g. segmented watermarking
    • 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
    • G06T2201/0065—Extraction of an embedded watermark; Reliable detection
    • 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
    • G06T2201/0203—Image watermarking whereby the image with embedded watermark is reverted to the original condition before embedding, e.g. lossless, distortion-free or invertible watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • 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
    • H04N2201/328—Processing of the additional information
    • H04N2201/3281—Encryption; Ciphering
    • 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
    • H04N2201/328—Processing of the additional information
    • H04N2201/3284—Processing of the additional information for error correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

SISTEMA E MéTODO PARA OCULTAR DADOS REVERSìVEIS ROBUSTOS E RECUPERAçãO DE DADOS NO DOMìNIO ESPACIAL. Um método incluindo identificar pelo menos dois subconjuntos de pixels dentro de um bloco de uma imagem; formar uma pluralidade de grupos de pixel dos pelo menos dois subconjuntos de pixel, cada grupo de pixel tendo pelo menos um pixel de um primeiro dos pelo menos dois subconjuntos e pelo menos um pixel de um segundo dos pelo menos dois subconjuntos; produzir uma pluralidade de valores de diferença, cada grupo de pixel provendo um dos ditos valores de diferença, cada valor de diferença sendo baseado nas diferenças entre valores de pixel dos pixels dentro de um dos grupos de pixel e modificar os valores de pixel dos pixels em menos do que todos dos pelo menos dois subconjuntos, dessa maneira embutindo um valor de bit no bloco.
BRPI0417353-8A 2003-12-05 2004-12-03 sistema e método para ocultar dados reversìveis robustos e recuperação de dados no domìnio espacial BRPI0417353A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52778903P 2003-12-05 2003-12-05
PCT/US2004/040528 WO2005057468A2 (en) 2003-12-05 2004-12-03 System and method for robust reversible data hiding and data recovery in the spatial domain

Publications (1)

Publication Number Publication Date
BRPI0417353A true BRPI0417353A (pt) 2007-07-31

Family

ID=34676778

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0417353-8A BRPI0417353A (pt) 2003-12-05 2004-12-03 sistema e método para ocultar dados reversìveis robustos e recuperação de dados no domìnio espacial

Country Status (7)

Country Link
US (1) US7457431B2 (pt)
EP (1) EP1692637A4 (pt)
JP (1) JP4250187B2 (pt)
KR (1) KR100970990B1 (pt)
CN (1) CN101449278B (pt)
BR (1) BRPI0417353A (pt)
WO (1) WO2005057468A2 (pt)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101449278B (zh) 2003-12-05 2011-07-06 新泽西理工学院 在空间域中的健壮可逆数据隐藏和数据恢复的系统和方法
JP4603446B2 (ja) * 2004-09-29 2010-12-22 株式会社リコー 画像処理装置、画像処理方法および画像処理プログラム
TWI279733B (en) * 2004-11-16 2007-04-21 Univ Nat Kaohsiung Applied Sci Image authentication method of semi-fragile watermark
US7953983B2 (en) 2005-03-08 2011-05-31 Microsoft Corporation Image or pictographic based computer login systems and methods
US7974477B2 (en) * 2007-02-19 2011-07-05 New Jersey Institute Of Technology Apparatus and method for reversible data hiding for JPEG images
KR100898329B1 (ko) * 2007-10-05 2009-05-20 한국과학기술원 정수 웨이블릿 변환에 기초한 워터 마크 삽입 방법
TWI384416B (zh) * 2007-12-26 2013-02-01 僑光科技大學 一種植基於三像素區塊差異之可回復式資料隱藏技術
WO2009099914A1 (en) * 2008-02-01 2009-08-13 New Jersey Institute Of Technology System and method for reversible binary image data hiding using run-length histogram modification and logical operations
TW200952486A (en) * 2008-06-13 2009-12-16 Ind Tech Res Inst Video surveillance system, module and method for annotation and de-annotation thereof
US8175324B2 (en) * 2008-10-17 2012-05-08 New Jersey Institute Of Technology Reversible data hiding
WO2010093225A2 (ko) * 2009-02-13 2010-08-19 고려대학교 산학협력단 데이터 압축/해제장치 및 방법
US8560918B1 (en) * 2009-04-21 2013-10-15 Marvell International Ltd. Method and apparatus for dynamically selecting an error correction code to be applied to data in a communication system
DE102009022606A1 (de) 2009-05-26 2010-12-02 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur steganographischen Modifikation eines Bitstroms
US8458485B2 (en) 2009-06-17 2013-06-04 Microsoft Corporation Image-based unlock functionality on a computing device
WO2011053178A1 (en) * 2009-10-27 2011-05-05 Intel Corporation Scalable compression using jpeg-ls
WO2011090359A2 (ko) * 2010-01-25 2011-07-28 고려대학교 산학협력단 데이터 압축/해제장치 및 방법
KR101135472B1 (ko) * 2010-02-03 2012-04-19 금오공과대학교 산학협력단 차이값 히스토그램을 이용한 가역 워터마크 삽입, 추출 및 원본 복원 방법
US8571280B2 (en) * 2010-02-22 2013-10-29 Canon Kabushiki Kaisha Transmission of medical image data
KR101171819B1 (ko) * 2010-06-30 2012-08-14 주식회사 케이티 데이터 은닉을 이용하여 영상 오류를 복원하는 방법 및 시스템
US8892809B2 (en) 2010-10-25 2014-11-18 Marvell World Trade Ltd. Data compression and encoding in a memory system
AU2011202415B1 (en) * 2011-05-24 2012-04-12 Microsoft Technology Licensing, Llc Picture gesture authentication
JP6016403B2 (ja) * 2012-03-27 2016-10-26 キヤノン株式会社 画像処理装置、画像処理方法
US8806558B1 (en) * 2013-09-20 2014-08-12 Limelight Networks, Inc. Unique watermarking of content objects according to end user identity
CN103810664B (zh) * 2012-11-13 2017-06-27 中兴通讯股份有限公司 一种信息隐藏方法及装置
KR101373176B1 (ko) * 2013-02-13 2014-03-11 서강대학교산학협력단 복제 동영상정보 검출방법 및 장치, 저장매체
CN103123720B (zh) * 2013-03-13 2015-09-23 中南大学 基于差值图像直方图循环平移的无损数据隐藏方法
ITTO20130688A1 (it) * 2013-08-12 2013-11-11 Univ Degli Studi Torino Procedimento e sistema per marcare immagini mediche tramite una tecnica di "watermarking" fragile e reversibile utilizzandoun metodo statistico e firma digitale
US9330445B2 (en) * 2014-04-29 2016-05-03 Himax Imaging Limited Local contrast enhancement method and apparatus
US10361721B1 (en) 2014-05-01 2019-07-23 Marvell International Ltd. Methods and network device for uncoded bit protection in 10GBASE-T Ethernet
US10271057B2 (en) * 2014-11-04 2019-04-23 Vahagn Nurijanyan System and methods for image/video compression
KR101512739B1 (ko) * 2014-11-14 2015-04-16 동국대학교 산학협력단 오류 정정 부호를 이용한 데이터 은닉 장치 및 방법
US10225031B2 (en) 2016-11-02 2019-03-05 The Nielsen Company (US) Methods and apparatus for increasing the robustness of media signatures
US10489874B2 (en) * 2016-12-03 2019-11-26 Zensar Technologies Ltd. Computer implemented system and method for steganography
KR101936999B1 (ko) 2016-12-21 2019-01-09 동양대학교 산학협력단 타임스탬프 정보를 이용한 데이터 숨김 방법
US10452383B1 (en) * 2017-04-28 2019-10-22 Square, Inc. Device improvements through adaptive settings
CN107742145A (zh) * 2017-09-20 2018-02-27 深圳市天朗时代科技有限公司 数据嵌入方法、数据读取方法、装置及可读存储介质
CN110322385B (zh) * 2018-03-28 2021-08-24 浙江大学 水印嵌入以及提取方法、装置及电子设备
US10496529B1 (en) 2018-04-18 2019-12-03 Palantir Technologies Inc. Data unit test-based data management system
CN108629749B (zh) * 2018-04-26 2021-10-01 西安空间无线电技术研究所 一种图像压缩和隐藏相结合的方法
CN108833921B (zh) * 2018-06-12 2022-06-17 浙江大华技术股份有限公司 一种编解码方法及装置
CN109410286B (zh) * 2018-11-09 2021-12-28 华南理工大学 一种智能隐藏式棋盘格标定板的编解码方法
CN109547797B (zh) * 2019-01-02 2021-02-05 太原科技大学 一种可分离的加密域信息隐藏方法
KR101966032B1 (ko) 2019-01-07 2019-04-04 동양대학교 산학협력단 디렉토리 목록정보 변경을 이용한 데이터 숨김방법
KR101977008B1 (ko) 2019-01-07 2019-05-09 동양대학교 산학협력단 시간정보 왜곡보정이 가능한 타임스탬프를 이용한 데이터 숨김방법
CN111210378B (zh) * 2019-12-30 2023-09-19 北京工业大学 基于工业云上图像数据的可恢复性方法
CN111709868B (zh) * 2020-06-22 2024-04-02 广西师范大学 一种基于直方图法的隐藏图像恢复方法
CN113507547B (zh) * 2021-07-07 2023-07-14 福建工程学院 自适应系数多直方图结合高维直方图的可逆信息隐藏方法
CN115600162A (zh) * 2021-07-09 2023-01-13 华为云计算技术有限公司（Cn） 在数据中添加水印的方法、装置及相关设备
CN115738290A (zh) * 2021-09-03 2023-03-07 腾讯科技（深圳）有限公司 支付方法、装置、电子设备及存储介质
CN114782238B (zh) * 2022-04-13 2025-03-25 西安邮电大学 一种基于哈希函数和信息隐藏的图像自认证方法
CN115396676B (zh) * 2022-07-28 2024-03-26 西安空间无线电技术研究所 一种加密域卫星图像信息隐藏方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4313873B2 (ja) * 1998-01-30 2009-08-12 キヤノン株式会社 電子機器及びデータ処理方法
US6278791B1 (en) 1998-05-07 2001-08-21 Eastman Kodak Company Lossless recovery of an original image containing embedded data
US6473516B1 (en) * 1998-05-22 2002-10-29 Asa Systems, Inc. Large capacity steganography
JP4822304B2 (ja) * 1998-08-06 2011-11-24 ソニー株式会社 画像処理装置および画像処理方法、並びに記録媒体
JP2001028683A (ja) 1999-07-13 2001-01-30 Victor Co Of Japan Ltd 画像への特定情報隠蔽方法
WO2003055130A1 (en) * 2001-12-13 2003-07-03 Digimarc Corporation Reversible watermarking
AU2003203958B2 (en) * 2002-05-01 2005-11-24 Canon Kabushiki Kaisha Steganographic Image Encoding
AUPS206802A0 (en) * 2002-05-01 2002-06-06 Canon Kabushiki Kaisha Steganographic image encoding
JP3784781B2 (ja) 2003-05-20 2006-06-14 富士通株式会社 画像データ処理装置、画像データ処理方法、画像データ処理プログラムおよび画像データ処理システム
CN101449278B (zh) 2003-12-05 2011-07-06 新泽西理工学院 在空间域中的健壮可逆数据隐藏和数据恢复的系统和方法

Also Published As

Publication number Publication date
EP1692637A4 (en) 2009-11-04
US20050141747A1 (en) 2005-06-30
JP2007519313A (ja) 2007-07-12
CN101449278B (zh) 2011-07-06
US7457431B2 (en) 2008-11-25
WO2005057468A2 (en) 2005-06-23
KR100970990B1 (ko) 2010-07-20
KR20060112682A (ko) 2006-11-01
EP1692637A2 (en) 2006-08-23
JP4250187B2 (ja) 2009-04-08
CN101449278A (zh) 2009-06-03
WO2005057468A3 (en) 2007-04-05

Similar Documents

Publication Publication Date Title
BRPI0417353A (pt) sistema e método para ocultar dados reversìveis robustos e recuperação de dados no domìnio espacial
Thangadurai et al. An analysis of LSB based image steganography techniques
Yi et al. Reversible data hiding in encrypted images using adaptive block-level prediction-error expansion
Makbol et al. A new robust and secure digital image watermarking scheme based on the integer wavelet transform and singular value decomposition
CN101622858B (zh) 图像加工方法及图像检查方法
Teng et al. Cryptanalysis and improvement of a chaotic system based fragile watermarking scheme
BRPI0408394A (pt) método e equipamento para melhorar qualidade de vìdeo de vìdeo de baixa taxa de bit
TW200609823A (en) System and method for identifying objects of interest in image data
WO2007012030A3 (en) Covert and robust mark for media identification
CN108509775A (zh) 一种基于机器学习的恶意png图像识别方法
Majeed et al. AN IMPROVED LSB IMAGE STEGANOGRAPHY TECHNIQUE USING BIT-INVERSE IN 24 BIT COLOUR IMAGE.
CA2618403A1 (en) Counterfeit deterrence using dispersed miniature security marks
CA2416530A1 (en) Using embedded data with file sharing
CN106599727B (zh) 一种矢量地图完整性认证方法
CN103065101A (zh) 一种文档防伪方法
Singla et al. A Hash Based Approach for secure image stegnograpgy using canny edge detection method
Ghanbari et al. New steganalysis method using GLCM and neural network
Bachrach et al. Image steganography and steganalysis
Kumar et al. Reversible watermarking scheme for medical images
CN114092307A (zh) 水印生成方法、添加方法、溯源方法、设备及存储介质
Khan An efficient neural network based algorithm of steganography for image
Tyagi et al. Data Hiding Techniques Using Steganography Algorithms
Luo et al. Detection of LTSB steganography based on quartic equation
Alanazi et al. New classification methods for hiding information into two parts: Multimedia files and non multimedia files
Wang A Novel Three-Channel Image Encryption Algorithm Based on Tent Chaotic Map

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 AS 5A, 6A E 7A 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 2158 DE 15/05/2012.