Digital image watermarking based on discrete wavelet transform

2002 ◽  
Vol 17 (2) ◽  
pp. 129-139 ◽  
Author(s):  
Wei Ding ◽  
Weiqi Yan ◽  
Dongxu Qi
Keyword(s):  
Wavelet Transform ◽  
Discrete Wavelet Transform ◽  
Digital Image ◽  
Image Watermarking ◽  
Discrete Wavelet ◽  
Digital Image Watermarking

scholarly journals A Robust Algorithm of Digital Image Watermarking Based on Discrete Wavelet Transform

2011 ◽  
pp. 58-63
Author(s):  
Shital Gupta ◽  
SANJEEV JAIN
Keyword(s):  
Wavelet Transform ◽  
Discrete Wavelet Transform ◽  
Digital Image ◽  
Image Watermarking ◽  
Theoretical Models ◽  
Discrete Wavelet ◽  
Blind Watermarking ◽  
Digital Image Watermarking ◽  
Robust Algorithm ◽  
Frequency Spread

In this paper, a robust algorithm of digital image watermarking based on discrete wavelet transform is introduced It uses blind watermarking technique. Digital image watermarking is one such technology that has been developed to protect digital images from illegal manipulations. In particular, digital image watermarking algorithms which are based on the discrete wavelet transform have been widely recognized to be more prevalent than others. This is due to the wavelets' excellent spatial localization, frequency spread, and multi-resolution characteristics, which are similar to the theoretical models of the human visual system.

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