首页> 外国专利> SYSTEM AND METHOD FOR REVERSIBLE DATA HIDING BASED ON INTEGER WAVELET SPREAD SPECTRUM

SYSTEM AND METHOD FOR REVERSIBLE DATA HIDING BASED ON INTEGER WAVELET SPREAD SPECTRUM

机译:基于整数小波扩展谱的可逆数据隐藏系统和方法

摘要

A system and method are disclosed which may include subjecting an original, pixel domain image to an Integer Wavelet Transform (IWT) to obtain a matrix of IWT coefficients; selecting a plurality of the IWT coefficients for incorporation of information therein; and setting signs for the plurality of selected IWT coefficients according to bit values of a plurality of respective data bits. The system and method can also include subjecting a marked pixel domain image to an Integer Wavelet Transform to obtain a matrix of wavelet coefficients; selecting a plurality of the coefficients from the matrix that contain embedded information; and for each selected coefficient, extracting the data bit embedded in the coefficient, a bit value of the extracted data bit determined based on a sign of the coefficient.
机译:公开了一种系统和方法,其可以包括对原始像素域图像进行整数小波变换(IWT)以获得IWT系数的矩阵;以及选择多个IWT系数以在其中结合信息;根据多个相应数据比特的比特值为多个选择的IWT系数设置符号。该系统和方法还可以包括对标记的像素域图像进行整数小波变换以获得小波系数矩阵;以及从包含嵌入信息的矩阵中选择多个系数;对于每个选择的系数,提取嵌入在系数中的数据位,根据系数的符号确定提取的数据位的位值。

著录项

  • 公开/公告号EP1776655B1

    专利类型

  • 公开/公告日2019-03-20

    原文格式PDF

  • 申请/专利权人 NEW JERSEY INSTITUTE OF TECHNOLOGY;

    申请/专利号EP20050724198

  • 发明设计人 SHI YUN-QING;XUAN GUORONG;

    申请日2005-02-28

  • 分类号G06T1;

  • 国家 EP

  • 入库时间 2022-08-21 12:31:50

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