EA200000767A1 - Способ и устройство для защиты от подделки документов с использованием цифрового растрирования - Google Patents

Способ и устройство для защиты от подделки документов с использованием цифрового растрирования

Info

Publication number
EA200000767A1
EA200000767A1 EA200000767A EA200000767A EA200000767A1 EA 200000767 A1 EA200000767 A1 EA 200000767A1 EA 200000767 A EA200000767 A EA 200000767A EA 200000767 A EA200000767 A EA 200000767A EA 200000767 A1 EA200000767 A1 EA 200000767A1
Authority
EA
Eurasian Patent Office
Prior art keywords
image
raster elements
obtaining
primary
protection
Prior art date
Application number
EA200000767A
Other languages
English (en)
Other versions
EA002934B1 (ru
Inventor
Ференц Колтай
Бенсе Адам
Ференц Такалш
Ласло Барош
Original Assignee
Юра-Трейд Керешкедельми Кфт.
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 Юра-Трейд Керешкедельми Кфт. filed Critical Юра-Трейд Керешкедельми Кфт.
Publication of EA200000767A1 publication Critical patent/EA200000767A1/ru
Publication of EA002934B1 publication Critical patent/EA002934B1/ru

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; CALCULATING OR 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; 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

Abstract

В заявке описаны устройство и способ сокрытия вторичного изображения в первичном изображении и получения высококачественной печатной копии объединенного изображения, состоящего из растровых элементов, на различных материалах. Предлагаемый способ заключается в том, что растрируют первичное изображение с получением первого изображения, состоящего из растровых элементов, и растрируют вторичное изображение, скомпенсированное его собственным обращенным изображением, с получением второго изображения, состоящего из растровых элементов. Затем на основе выбранной схемы кодирования и коррекции объединяют первое изображение, состоящее из растровых элементов, со вторым изображением, состоящим из растровых элементов, в общее изображение, состоящее из растровых элементов, в результате чего второе изображение оказывается скрытым внутри первого изображения. В завершение на основе общего изображения, состоящего из растровых элементов, получают выходное изображение, в котором первичное изображение является видимым невооруженным глазом, а вторичное изображение скрыто и невидимо невооруженным глазом.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA200000767A 1998-01-12 1999-01-12 Способ и устройство для защиты от подделки документов с использованием цифрового растрирования EA002934B1 (ru)

Applications Claiming Priority (2)

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
PCT/HU1999/000002 WO1999035819A1 (en) 1998-01-12 1999-01-12 Anti-counterfeiting method and apparatus using digital screening

Publications (2)

Publication Number Publication Date
EA200000767A1 true EA200000767A1 (ru) 2001-08-27
EA002934B1 EA002934B1 (ru) 2002-10-31

Family

ID=21716334

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200000767A EA002934B1 (ru) 1998-01-12 1999-01-12 Способ и устройство для защиты от подделки документов с использованием цифрового растрирования

Country Status (36)

Country Link
US (1) US6104812A (ru)
EP (2) EP1048168B1 (ru)
JP (2) JP4339510B2 (ru)
CN (1) CN1152347C (ru)
AP (1) AP1272A (ru)
AT (1) ATE244972T1 (ru)
AU (1) AU748031C (ru)
BG (1) BG63856B1 (ru)
BR (1) BR9906924B1 (ru)
CA (1) CA2317654C (ru)
CZ (1) CZ297272B6 (ru)
DE (1) DE19900856C2 (ru)
DK (1) DK1048168T3 (ru)
EA (1) EA002934B1 (ru)
EE (1) EE04574B1 (ru)
ES (1) ES2203060T3 (ru)
HK (1) HK1021026A1 (ru)
HR (1) HRP20000414B1 (ru)
HU (1) HU226542B1 (ru)
ID (1) ID23329A (ru)
IL (1) IL136928A0 (ru)
IS (1) IS2133B (ru)
ME (1) ME00754B (ru)
MX (1) MXPA00006913A (ru)
MY (1) MY123330A (ru)
NO (1) NO324556B1 (ru)
NZ (1) NZ505087A (ru)
OA (1) OA11471A (ru)
PL (1) PL191448B1 (ru)
PT (1) PT1048168E (ru)
SG (1) SG92623A1 (ru)
SI (1) SI1048168T1 (ru)
SK (1) SK286452B6 (ru)
TW (1) TW522347B (ru)
WO (1) WO1999035819A1 (ru)
YU (1) YU49366B (ru)

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