Open AccessDigital Watermark System with an Ability of its Extraction from Hard Copies of Data
Author(s) -
Valery Korzhik,
D. Flaksman
Publication year - 2019
Publication title -
trudy učebnyh zavedenij svâzi
Language(s) - English
Resource type - Journals
eISSN - 2712-8830
pISSN - 1813-324X
DOI - 10.31854/1813-324x-2019-5-3-75-85
Subject(s) - digital watermarking , watermark , computer science , embedding , artificial intelligence , distortion (music) , computer vision , reliability (semiconductor) , digital data , feature extraction , volume (thermodynamics) , frequency domain , domain (mathematical analysis) , image (mathematics) , pattern recognition (psychology) , computer hardware , mathematics , data transmission , telecommunications , bandwidth (computing) , amplifier , power (physics) , mathematical analysis , physics , quantum mechanics
In this paper it is presented Digital Watermark System for color images. The main feature of this system is an ability to extract digital watermarks even after printing and following scanning of watermarked images. There is a description of algorithms for embedding and extracting of additional information. These methods are based on the usage of spread-spectrum signals in the frequency domain. Furthermore, there is described algorithms of distortion correction after printing out and following scanning the paper copies of digital data. The results of the experimental research on evaluation of a possible embedding volume and the reliability after extraction of the embedded data are also presented.