CA2090753A1 - Image processing with anti-forgery provision - Google Patents

Image processing with anti-forgery provision

Info

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
Application number
CA2090753A
Other languages
French (fr)
Other versions
CA2090753C (en
Inventor
Eiichi Nishikawa
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.)
Canon Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2090753A1 publication Critical patent/CA2090753A1/en
Application granted granted Critical
Publication of CA2090753C publication Critical patent/CA2090753C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00838Preventing unauthorised reproduction
    • H04N1/0084Determining the necessity for prevention
    • H04N1/00843Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00838Preventing unauthorised reproduction
    • H04N1/0084Determining the necessity for prevention
    • H04N1/00843Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote
    • H04N1/00848Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote by detecting a particular original
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00838Preventing unauthorised reproduction
    • H04N1/00856Preventive measures
    • H04N1/00864Modifying the reproduction, e.g. outputting a modified copy of a scanned original
    • H04N1/00867Modifying the reproduction, e.g. outputting a modified copy of a scanned original with additional data, e.g. by adding a warning message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32Circuits 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
    • H04N2201/3201Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3204Display, 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
    • H04N2201/3205Display, 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32Circuits 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
    • H04N2201/3201Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3269Display, 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
    • H04N2201/327Display, 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00Printed matter
    • Y10S283/901Concealed data
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00Printed matter
    • Y10S283/902Anti-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.
CA002090753A 1992-02-27 1993-02-24 Image processing with anti-forgery provision Expired - Fee Related CA2090753C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP04103492A JP3242971B2 (en) 1992-02-27 1992-02-27 Image processing apparatus and method
JP4-041034 1992-02-27

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)

* Cited by examiner, † Cited by third party
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
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
US5919730A (en) * 1996-02-08 1999-07-06 Eastman Kodak Company Copy restrictive documents
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
US6155491A (en) 1998-05-29 2000-12-05 Welch Allyn Data Collection, Inc. Lottery game ticket processing apparatus
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)

* Cited by examiner, † Cited by third party
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
ES2093768T3 (en) * 1988-05-13 1997-01-01 Canon Kk APPARATUS FOR IMAGE PROCESSING.
SG102585A1 (en) * 1989-02-10 2004-03-26 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

Also Published As

Publication number Publication date
JP3242971B2 (en) 2001-12-25
US5418602A (en) 1995-05-23
CA2090753C (en) 1999-09-28
JPH05244390A (en) 1993-09-21
EP0558314A1 (en) 1993-09-01

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