SG92623A1 - Anti-counterfeiting method and apparatus using digital screening - Google Patents

Anti-counterfeiting method and apparatus using digital screening

Info

Publication number
SG92623A1
SG92623A1 SG9900020A SG1999000020A SG92623A1 SG 92623 A1 SG92623 A1 SG 92623A1 SG 9900020 A SG9900020 A SG 9900020A SG 1999000020 A SG1999000020 A SG 1999000020A SG 92623 A1 SG92623 A1 SG 92623A1
Authority
SG
Singapore
Prior art keywords
counterfeiting method
digital screening
screening
digital
counterfeiting
Prior art date
Application number
SG9900020A
Other languages
English (en)
Inventor
Ferenc Koltai
Laszlo Baros
Bence Adam
Ferenc Takacs
Koltai Ferenc
Baros Laszlo
Adam Bence
Takacs Ferenc
Original Assignee
Juratrade Ltd
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 Juratrade Ltd filed Critical Juratrade Ltd
Publication of SG92623A1 publication Critical patent/SG92623A1/en

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
    • H04N1/32—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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C5/00—Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
    • 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
    • H04N1/32219—Spatial or amplitude domain methods involving changing the position of selected pixels, e.g. word shifting, or involving modulating the size of image components, e.g. of characters
    • 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
    • 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
    • H04N1/32352—Controlling detectability or arrangements to facilitate detection or retrieval of the embedded information, e.g. using markers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)
  • Burglar Alarm Systems (AREA)
  • Image Analysis (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
SG9900020A 1998-01-12 1999-01-06 Anti-counterfeiting method and apparatus using digital screening SG92623A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/005,529 US6104812A (en) 1998-01-12 1998-01-12 Anti-counterfeiting method and apparatus using digital screening

Publications (1)

Publication Number Publication Date
SG92623A1 true SG92623A1 (en) 2002-11-19

Family

ID=21716334

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9900020A SG92623A1 (en) 1998-01-12 1999-01-06 Anti-counterfeiting method and apparatus using digital screening

Country Status (35)

Country Link
US (1) US6104812A (enExample)
EP (2) EP1048168B1 (enExample)
JP (2) JP4339510B2 (enExample)
CN (1) CN1152347C (enExample)
AP (1) AP1272A (enExample)
AT (1) ATE244972T1 (enExample)
AU (1) AU748031C (enExample)
BG (1) BG63856B1 (enExample)
BR (1) BR9906924B1 (enExample)
CA (1) CA2317654C (enExample)
CZ (1) CZ297272B6 (enExample)
DE (1) DE19900856C2 (enExample)
DK (1) DK1048168T3 (enExample)
EA (1) EA002934B1 (enExample)
EE (1) EE04574B1 (enExample)
ES (1) ES2203060T3 (enExample)
HR (1) HRP20000414B1 (enExample)
HU (1) HU226542B1 (enExample)
ID (1) ID23329A (enExample)
IL (1) IL136928A0 (enExample)
IS (1) IS2133B (enExample)
ME (1) ME00754B (enExample)
MX (1) MXPA00006913A (enExample)
MY (1) MY123330A (enExample)
NO (1) NO324556B1 (enExample)
NZ (1) NZ505087A (enExample)
OA (1) OA11471A (enExample)
PL (1) PL191448B1 (enExample)
PT (1) PT1048168E (enExample)
SG (1) SG92623A1 (enExample)
SI (1) SI1048168T1 (enExample)
SK (1) SK286452B6 (enExample)
TW (1) TW522347B (enExample)
WO (1) WO1999035819A1 (enExample)
YU (1) YU49366B (enExample)

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