WO2005079072A1 - 電子透かし埋め込み方法、電子透かし検出方法及び装置並びにプログラム - Google Patents
電子透かし埋め込み方法、電子透かし検出方法及び装置並びにプログラム Download PDFInfo
- Publication number
- WO2005079072A1 WO2005079072A1 PCT/JP2005/002166 JP2005002166W WO2005079072A1 WO 2005079072 A1 WO2005079072 A1 WO 2005079072A1 JP 2005002166 W JP2005002166 W JP 2005002166W WO 2005079072 A1 WO2005079072 A1 WO 2005079072A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- electronic
- embedded
- pixel
- detection
- Prior art date
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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
- H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- 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
- 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
-
- 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; CALCULATING OR 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; CALCULATING OR 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
-
- 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
- H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
- H04N2201/3233—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of authentication information, e.g. digital signature, watermark
-
- 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
- H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
- H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes
Definitions
- An electronic watermark embedding method includes a dividing step for spatially dividing an electronic image to be embedded with an electronic watermark into a plurality of image areas, and a characteristic in which a change in pixel value is hardly recognized.
- FIG. 8 is a diagram showing an adaptive process using a frame difference for each embedded bit.
- FIG. 18 is a diagram showing an application example of the digital watermark detection device according to the fourth embodiment.
- the width of the spatial guard band GB is, for example, 32 pixels. This width is appropriately determined according to the image characteristics of the target image in which the digital watermark according to the present invention is to be embedded, as long as the boundary between the areas whose brightness has been changed by different changes is invisible. Further, a boundary line on the region B side of the guard band GB between the regions B and D is referred to as Ba, and a boundary line on the region D side is referred to as Bb.
- the embedding processing unit 4 executes the embedding process so that the change in the luminance value between the regions is slow in the guard band provided by the image dividing unit 2 as described above. Also, When setting a guard band in the time direction, the embedding process is performed so that the change in the luminance value in the time direction is slow in the guard band.
- pixels having a large change in pixel value between frame images (or field images) in general often constitute a video with a sharp movement. It is expected that the visual effect of the value change will be small.
- the Mth function returns the third largest value.
- n is a natural number
- a (1), a (2), a (3), ⁇ , a (n) are calculated at the G ap detection time point a in each embedding cycle. It shows the Gap value obtained.
- a similar relational force is calculated for the average of the Gap values obtained at each Gap detection time point a to d in the divided areas BD. Note that A in AGap is a of the four divided areas when the watermark is embedded in the electronic image 6c.
- FIG. 13 is a diagram showing the relationship between the Gap value and the embedded bits.
- the embedded bit determination unit 11 determines the embedded bits according to the relationship shown in FIG.
- the parameters X and z in the figure are obtained by the embedded bit determination unit 11 using the Gap values (Gap, Gap) calculated by the Gap detection unit 9 ac bd
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005517998A JPWO2005079072A1 (ja) | 2004-02-17 | 2005-02-14 | 電子透かし埋め込み方法、電子透かし検出方法及び装置並びにプログラム |
EP20050710168 EP1720354B8 (en) | 2004-02-17 | 2005-02-14 | Electronic watermarking method, electronic watermark detecting method, apparatus and program |
US10/586,997 US7769197B2 (en) | 2004-02-17 | 2005-02-14 | Electronic watermark embedding method, electronic watermark detecting method, electronic watermark detecting apparatus and program |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004040331 | 2004-02-17 | ||
JP2004-040331 | 2004-02-17 |
Publications (1)
Publication Number | Publication Date |
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WO2005079072A1 true WO2005079072A1 (ja) | 2005-08-25 |
Family
ID=34857879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/002166 WO2005079072A1 (ja) | 2004-02-17 | 2005-02-14 | 電子透かし埋め込み方法、電子透かし検出方法及び装置並びにプログラム |
Country Status (7)
Country | Link |
---|---|
US (1) | US7769197B2 (ja) |
EP (1) | EP1720354B8 (ja) |
JP (2) | JPWO2005079072A1 (ja) |
KR (1) | KR100841848B1 (ja) |
CN (1) | CN100574429C (ja) |
TW (1) | TWI288873B (ja) |
WO (1) | WO2005079072A1 (ja) |
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JP2006203318A (ja) * | 2005-01-18 | 2006-08-03 | Pioneer Electronic Corp | 情報多重装置及び方法、情報抽出装置及び方法、並びにコンピュータプログラム |
JP2009100296A (ja) * | 2007-10-17 | 2009-05-07 | Mitsubishi Electric Corp | 電子透かし埋め込み装置、電子透かし検出装置、それらの方法およびそれらのプログラム |
JP2009535920A (ja) * | 2006-04-28 | 2009-10-01 | ボバイル インコーポレイテッド | 多重解像度、複数のフレームレートの空間及び時間域特徴に基づきデジタルビデオオブジェクトのフィンガープリンティング方法とシステム |
JP2010045453A (ja) * | 2008-08-08 | 2010-02-25 | Toshiba Corp | 電子透かし検出装置、方法及びプログラム |
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JP2010278861A (ja) * | 2009-05-29 | 2010-12-09 | Nippon Hoso Kyokai <Nhk> | 電子透かし埋め込み装置及び電子透かし検出装置 |
US8121339B2 (en) * | 2005-09-13 | 2012-02-21 | Canon Kabushiki Kaisha | Adaptive mark placement |
WO2012026039A1 (ja) * | 2010-08-27 | 2012-03-01 | 富士通株式会社 | 電子透かし埋め込み装置、電子透かし埋め込み方法及び電子透かし埋め込み用コンピュータプログラムならびに電子透かし検出装置 |
JP2012060286A (ja) * | 2010-09-07 | 2012-03-22 | Nanao Corp | 盗撮防止装置またはその方法 |
US8204334B2 (en) | 2006-06-29 | 2012-06-19 | Thomson Licensing | Adaptive pixel-based filtering |
US8208683B2 (en) | 2006-03-07 | 2012-06-26 | Nippon Telegraph And Telephone Corporation | Digital watermark embedding method, apparatus and storage medium for reducing image quality deterioration and increasing detection reliability |
JP2012244601A (ja) * | 2011-05-24 | 2012-12-10 | Sharp Corp | 情報取得装置、情報出力装置、情報通信システム、情報取得方法、情報出力方法、制御プログラムおよび記録媒体 |
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Also Published As
Publication number | Publication date |
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KR100841848B1 (ko) | 2008-06-30 |
JP5528399B2 (ja) | 2014-06-25 |
EP1720354A1 (en) | 2006-11-08 |
KR20060121972A (ko) | 2006-11-29 |
CN100574429C (zh) | 2009-12-23 |
JP2011239433A (ja) | 2011-11-24 |
CN1922883A (zh) | 2007-02-28 |
TW200534093A (en) | 2005-10-16 |
TWI288873B (en) | 2007-10-21 |
US20080273741A1 (en) | 2008-11-06 |
EP1720354A4 (en) | 2008-05-07 |
EP1720354B8 (en) | 2012-08-08 |
US7769197B2 (en) | 2010-08-03 |
EP1720354B1 (en) | 2012-04-11 |
JPWO2005079072A1 (ja) | 2008-01-10 |
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