MY163424A - Watermarking - Google Patents
WatermarkingInfo
- Publication number
- MY163424A MY163424A MYPI20032891A MYPI20032891A MY163424A MY 163424 A MY163424 A MY 163424A MY PI20032891 A MYPI20032891 A MY PI20032891A MY PI20032891 A MYPI20032891 A MY PI20032891A MY 163424 A MY163424 A MY 163424A
- Authority
- MY
- Malaysia
- Prior art keywords
- image
- indicator region
- colour
- intensity
- naked eye
- Prior art date
Links
Classifications
-
- 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
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
- G07D7/0034—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements using watermarks
-
- 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
- G06T2201/0064—Image watermarking for copy protection or copy management, e.g. CGMS, copy only once, one-time copy
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
Abstract
A METHOD AND SYSTEM FOR PRODUCING A PRINTABLE WATERMARK IMAGE (1207) FOR EMBEDDING INTO A DOCUMENT FOR PRINTING (1304), SAID IMAGE (1207) COMPRISING: AN IMAGE BACKGROUND (103) HAVING A AVERAGE INTENSITY OF A FIRST COLOUR; AND AN INDICATOR REGION (102) ALSO HAVING SAID AVERAGE INTENSITY OF SAID COLOUR, AT LEAST SAID INDICATOR REGION INTENSITY BEING THE RESULT OF A DITHERED ARRANGEMENT OF AT LEAST TWO DIFFERENT INTENSITIES, AND WHEREIN THE RESOLUTION OF SAID IMAGE (1207), THE DITHERED ARRANGEMENT AND THE TWO OR MORE INTENSITIES ARE SELECTED SUCH THAT THE COLOUR AND INTENSITY OF THE IMAGE BACKGROUND (103) AND THE INDICATOR REGION (102) APPEAR UNIFORM TO THE NAKED EYE BUT THE INDICATOR REGION (102) BECOMES APPARENT TO THE NAKED EYE AFTER PROCESSING THE PRINTED IMAGE WITH A COPYING DEVICE OPERATING AS A LOW PASS FILTER.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG2002046068 | 2002-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
MY163424A true MY163424A (en) | 2017-09-15 |
Family
ID=31713319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI20032891A MY163424A (en) | 2002-07-31 | 2003-07-30 | Watermarking |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU2003256230A1 (en) |
MY (1) | MY163424A (en) |
TW (1) | TWI298144B (en) |
WO (1) | WO2004015617A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI409648B (en) * | 2008-03-10 | 2013-09-21 | Ind Tech Res Inst | Capturing system and method for technical documents and capturing system for patent documents thereof |
US8373880B2 (en) | 2008-03-26 | 2013-02-12 | Industrial Technology Research Institute | Technical documents capturing and patents analysis system and method |
DE102020000512A1 (en) * | 2020-01-28 | 2021-07-29 | Mühlbauer Gmbh & Co. Kg | Method for making security information of a digitally stored image visible and image display device for carrying out such a method |
CN114265567B (en) * | 2022-02-25 | 2022-06-10 | 北京辰光融信技术有限公司 | Watermark printing method, printing equipment and storage medium |
TWI817551B (en) * | 2022-06-10 | 2023-10-01 | 友達光電股份有限公司 | Image encryption system and image encryption method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4310180A (en) * | 1977-05-18 | 1982-01-12 | Burroughs Corporation | Protected document and method of making same |
US4582346A (en) * | 1984-05-08 | 1986-04-15 | Moore Business Forms, Inc. | Document security system |
JPH06511611A (en) * | 1992-05-29 | 1994-12-22 | エコール ポリテクニーク フェデラル ドゥ ローザンヌ(エーペーエフエル) | How to mark a document |
US5375886A (en) * | 1993-04-14 | 1994-12-27 | Hosokawa Printing Co., Ltd. | Counterfeit-proof paper for discouraging attempt at reproduction with copying device |
JP2003527779A (en) * | 1999-09-01 | 2003-09-16 | ディジマーク コーポレイション | Method of forming watermark on digital image by specifying intensity for each area |
-
2003
- 2003-07-30 WO PCT/SG2003/000181 patent/WO2004015617A1/en not_active Application Discontinuation
- 2003-07-30 MY MYPI20032891A patent/MY163424A/en unknown
- 2003-07-30 TW TW092120825A patent/TWI298144B/en not_active IP Right Cessation
- 2003-07-30 AU AU2003256230A patent/AU2003256230A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2004015617A1 (en) | 2004-02-19 |
AU2003256230A1 (en) | 2004-02-25 |
TW200406717A (en) | 2004-05-01 |
TWI298144B (en) | 2008-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6763123B2 (en) | Detection of out-of-phase low visibility watermarks | |
WO2002015558A3 (en) | Method and apparatus for selective processing of captured images | |
WO2003013870A3 (en) | Security documents and a authenticating such documents | |
CA2306068A1 (en) | Digital imaging method and apparatus for detection of document security marks | |
EP1367482A3 (en) | Information processing apparatus and print system | |
DE50104711D1 (en) | DATA CARRIER WITH SCREEN PRINT IMAGE AND METHOD FOR IMPLEMENTING PICTURE IMAGES IN LINE STRUCTURES AND IN A SCRATCH PRESSURE PLATE | |
EP1049041A3 (en) | Image processing apparatus and methods for pattern recognition | |
WO1999035836A3 (en) | Embedding and detecting a watermark in images | |
AU2002227115A1 (en) | System and method for enhancing scanned document images for color printing | |
EP1672593A3 (en) | Method and system for printing an original image and for determining if a printed image is an original or has been altered | |
ZA9610012B (en) | Digital anti-counterfeiting software method and apparatus | |
EP1014687A3 (en) | Correcting exposure and tone scale of digital images captured by an image capture device | |
EP1781024A3 (en) | Image pickup apparatus and method for composing images | |
EP1209897A3 (en) | Systems and method for policy based printing and forgery detection | |
EP2261867A3 (en) | Method intended for preventing forgery or alteration of a printed or engraved surface | |
AU4837799A (en) | Elimination of artifacts in the calibration of x-ray imagers | |
EP1536628A3 (en) | Systems for spectral multiplexing of source images to provide a composite image, for rendering the composite image, and for spectral demultiplexing the composite image to obtain a normalized color image | |
EP0947338A3 (en) | Print image-forming method and device and printing apparatus incorporating the device | |
EP1809015A3 (en) | Apparatus and method for embedding watermark information, apparatus and method for detecting watermark information, and document containing watermark | |
TW200710605A (en) | Method and system for printing lithographic images with multiple exposures | |
EP2352111B1 (en) | Hiding information in colour channels with reduced visibility | |
EP1936948A3 (en) | Method for coherent watermark insertion and detection in color halftone images | |
EP1091284A3 (en) | Processing device and method | |
DE69923098D1 (en) | Image processing method and apparatus, and printing method and printer | |
EP1976260A3 (en) | Image forming apparatus and control method thereof |