Novel Watermark Embedding Technique Based on Human Visual System

Yong Ju JUNG  Yong Man RO  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E86-A   No.11   pp.2903-2907
Publication Date: 2003/11/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Image
watermarking embedding technique,  human visual system,  octave bands for visual system,  

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A good watermark is known to be perceptually invisible, undetectable without key and robust to spatial/temporal data modification. In this paper, we utilize the characteristics of the human visual system (HVS) for watermarking. In HVS, the response of visual cortex decomposes the image spectra into perceptual channels that are octave bands in spatial frequency. Based on the octave-bands division, same numbers of bits of the watermark are inserted into each channel. Experimental results show that the proposed method based on HVS method gives strong robustness to the attacks compared with conventional DCT, wavelet and DFT watermarking methods.