CA2090753A1 - Image processing with anti-forgery provision - Google Patents
Image processing with anti-forgery provisionInfo
- Publication number
- CA2090753A1 CA2090753A1 CA2090753A CA2090753A CA2090753A1 CA 2090753 A1 CA2090753 A1 CA 2090753A1 CA 2090753 A CA2090753 A CA 2090753A CA 2090753 A CA2090753 A CA 2090753A CA 2090753 A1 CA2090753 A1 CA 2090753A1
- Authority
- CA
- Canada
- Prior art keywords
- pattern
- specific
- image
- added
- signal
- 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.)
- Granted
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
- H04N1/00838—Preventing unauthorised reproduction
- H04N1/0084—Determining the necessity for prevention
- H04N1/00843—Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote
-
- 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
- H04N1/00838—Preventing unauthorised reproduction
- H04N1/0084—Determining the necessity for prevention
- H04N1/00843—Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote
- H04N1/00848—Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote by detecting a particular original
-
- 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
- H04N1/00838—Preventing unauthorised reproduction
- H04N1/00856—Preventive measures
- H04N1/00864—Modifying the reproduction, e.g. outputting a modified copy of a scanned original
- H04N1/00867—Modifying the reproduction, e.g. outputting a modified copy of a scanned original with additional data, e.g. by adding a warning message
-
- 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
- H04N2201/3204—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a user, sender, addressee, machine or electronic recording medium
- H04N2201/3205—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a user, sender, addressee, machine or electronic recording medium of identification information, e.g. name or ID code
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S283/00—Printed matter
- Y10S283/901—Concealed data
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S283/00—Printed matter
- Y10S283/902—Anti-photocopy
Abstract
A discriminating circuit discriminates the degree of similarity between an image represented by an input image signal and a predetermined specific image. A CPU
outputs a pattern-level selecting signal based upon the results of discrimination performed by the discriminating circuit. A pattern adding circuit modulates an internally stored specific pattern in accordance with an added-color designating signal and pattern-level selecting signal produced by the CPU, and adds the modulated specific pattern to the image signal.
As a result, a pattern specific to the apparatus is added in a reliably identifiable manner to an image output having a high probability of containing the specific original. In the case of an image output having a low probability of containing the specific original, the specific pattern is added to this image output in such a manner that the picture quality thereof is not diminished by the pattern.
outputs a pattern-level selecting signal based upon the results of discrimination performed by the discriminating circuit. A pattern adding circuit modulates an internally stored specific pattern in accordance with an added-color designating signal and pattern-level selecting signal produced by the CPU, and adds the modulated specific pattern to the image signal.
As a result, a pattern specific to the apparatus is added in a reliably identifiable manner to an image output having a high probability of containing the specific original. In the case of an image output having a low probability of containing the specific original, the specific pattern is added to this image output in such a manner that the picture quality thereof is not diminished by the pattern.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4-041034 | 1992-02-27 | ||
JP04103492A JP3242971B2 (en) | 1992-02-27 | 1992-02-27 | Image processing apparatus and method |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2090753A1 true CA2090753A1 (en) | 1993-08-28 |
CA2090753C CA2090753C (en) | 1999-09-28 |
Family
ID=12597118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002090753A Expired - Fee Related CA2090753C (en) | 1992-02-27 | 1993-02-24 | Image processing with anti-forgery provision |
Country Status (4)
Country | Link |
---|---|
US (1) | US5418602A (en) |
EP (1) | EP0558314A1 (en) |
JP (1) | JP3242971B2 (en) |
CA (1) | CA2090753C (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2063785C (en) * | 1991-03-25 | 1998-09-29 | Masahiro Funada | Image processing apparatus |
US6738491B1 (en) * | 1992-06-30 | 2004-05-18 | Minolta Co., Ltd. | Image forming apparatus and copy management system |
CA2106708C (en) * | 1992-09-25 | 2000-01-25 | Nobuatsu Sasanuma | Image processing apparatus and method thereof |
US6421145B1 (en) * | 1992-09-28 | 2002-07-16 | Canon Kabushiki Kaisha | Image processing apparatus and method using image information and additional information or an additional pattern added thereto or superposed thereon |
US5647010A (en) * | 1993-09-14 | 1997-07-08 | Ricoh Company, Ltd. | Image forming apparatus with security feature which prevents copying of specific types of documents |
JP3295202B2 (en) * | 1993-12-22 | 2002-06-24 | キヤノン株式会社 | Image forming device |
JP3566334B2 (en) * | 1994-03-25 | 2004-09-15 | キヤノン株式会社 | Image processing apparatus and method |
JP3224480B2 (en) * | 1994-09-30 | 2001-10-29 | キヤノン株式会社 | Color image processing equipment |
JPH08181873A (en) * | 1994-12-21 | 1996-07-12 | Ricoh Co Ltd | Image forming device |
US5919730A (en) * | 1996-02-08 | 1999-07-06 | Eastman Kodak Company | Copy restrictive documents |
US5752152A (en) * | 1996-02-08 | 1998-05-12 | Eastman Kodak Company | Copy restrictive system |
US5822660A (en) * | 1996-02-08 | 1998-10-13 | Eastman Kodak Company | Copyright protection in color thermal prints |
US6256110B1 (en) * | 1997-06-11 | 2001-07-03 | Canon Kabushiki Kaisha | Image processing apparatus and method and storage medium |
JPH11275339A (en) * | 1998-03-19 | 1999-10-08 | Ricoh Co Ltd | Image forming device |
US6405929B1 (en) | 1998-05-29 | 2002-06-18 | Hand Held Products, Inc. | Material detection systems for security documents |
US6522766B1 (en) | 1999-03-15 | 2003-02-18 | Seiko Epson Corporation | Watermarking with random zero-mean patches for copyright protection |
US6556688B1 (en) | 1999-03-15 | 2003-04-29 | Seiko Epson Corporation | Watermarking with random zero-mean patches for printer tracking |
JP2003099788A (en) * | 2001-09-21 | 2003-04-04 | Sharp Corp | Image processor |
JP2006157195A (en) * | 2004-11-26 | 2006-06-15 | Ricoh Co Ltd | Image processing apparatus |
JP2006186976A (en) * | 2004-12-02 | 2006-07-13 | Ricoh Co Ltd | Image forming apparatus having ground tint identifying means |
Family Cites Families (17)
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 |
JPS5536873A (en) * | 1978-09-08 | 1980-03-14 | Dainippon Printing Co Ltd | Copy prevention method |
DE3038179C2 (en) * | 1980-10-09 | 1982-07-29 | GAO Gesellschaft für Automation und Organisation mbH, 8000 München | Recording medium with an image motif superimposed by a line pattern and method for its production |
DE3229616A1 (en) * | 1982-08-09 | 1984-02-09 | Siemens AG, 1000 Berlin und 8000 München | Method and circuit arrangement for superimposing graphical patterns and/or symbols |
US4579370A (en) * | 1982-09-10 | 1986-04-01 | Burroughs Corporation | Multi-tone cancellation phrase and background |
US4637051A (en) * | 1983-07-18 | 1987-01-13 | Pitney Bowes Inc. | System having a character generator for printing encrypted messages |
JPS6087380A (en) * | 1983-10-20 | 1985-05-17 | Hosokawa Katsupanshiyo:Kk | Camouflaging method of latent image for copy prevention on printed matter |
US4739377A (en) * | 1986-10-10 | 1988-04-19 | Eastman Kodak Company | Confidential document reproduction method and apparatus |
US4728984A (en) * | 1986-11-17 | 1988-03-01 | Xerox Corporation | Data handling and archiving system |
US4796921A (en) * | 1987-02-02 | 1989-01-10 | Penny-Ohlmann-Neiman, Inc. | Hidden printing |
JPS63256980A (en) * | 1987-04-14 | 1988-10-24 | Hosokawa Katsupanshiyo:Kk | Unrecopiable paper |
DE68927410T2 (en) * | 1988-05-13 | 1997-03-20 | Canon Kk | Imaging device |
SG126671A1 (en) * | 1989-02-10 | 2006-11-29 | Canon Kk | Apparatus for image reading or processing |
US4956666A (en) * | 1989-06-13 | 1990-09-11 | Eastman Kodak Company | Secure copier and method of reproduction |
US5227871A (en) * | 1990-11-30 | 1993-07-13 | Canon Kabushiki Kaisha | Image processing apparatus capable of discriminating a predetermined image |
US5231663A (en) * | 1991-03-18 | 1993-07-27 | Earl Joseph G | Image processing system |
CA2063785C (en) * | 1991-03-25 | 1998-09-29 | Masahiro Funada | Image processing apparatus |
-
1992
- 1992-02-27 JP JP04103492A patent/JP3242971B2/en not_active Expired - Fee Related
-
1993
- 1993-02-24 CA CA002090753A patent/CA2090753C/en not_active Expired - Fee Related
- 1993-02-24 US US08/021,909 patent/US5418602A/en not_active Expired - Fee Related
- 1993-02-25 EP EP93301404A patent/EP0558314A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0558314A1 (en) | 1993-09-01 |
JP3242971B2 (en) | 2001-12-25 |
CA2090753C (en) | 1999-09-28 |
JPH05244390A (en) | 1993-09-21 |
US5418602A (en) | 1995-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |