DMCA
A Multiresolution Watermark for Digital Images (1997)
| Citations: | 143 - 1 self |
BibTeX
@INPROCEEDINGS{Xia97amultiresolution,
author = {Xiang-Gen Xia and Charles G. Boncelet and Gonzalo R. Arce},
title = {A Multiresolution Watermark for Digital Images},
booktitle = {},
year = {1997},
pages = {548--551}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
In this paper# weintroduce a new multiresolution water# marking method for digital images. The method is based on the discrete wavelet transform #DWT#. Pseudo#random codes are added to the large coe#cients at the high and middle frequency bands of the DWT of an image. It is shown that this method is more robust to often proposed methods to some common image distortions# such as the wavelet transform based image compression# and image halftoning. Moreover# the method is hierarchical. The computation load needed to detect the watermark depends on the noise level in an image. 1. Introduction With the rapid development of the current information technology# electronic publishing# such as the distribution of digitized images#videos# is becoming more and more popular. An important issue for electronic publishing is copyright protection. Watermarking is one of the current copyright protection methods that have recently received considerable attention. See# for example# #1#8#. Basically# wat...
Keyphrases
digital image multiresolution watermark image compression common image distortion computation load discrete wavelet transform dwt middle frequency band current information technology electronic publishing important issue image halftoning electronic publishing digitized image new multiresolution water large coe cients pseudo random code current copyright protection method rapid development considerable attention noise level copyright protection wavelet transform
