A Kind of DWT Domain Image Digital Watermarking Algorithm Research

Abstract:

An image-adaptive watermarking algorithm based on wavelet transform was proposed. At first, A digital image used as watermarking was scrambled. Next, the original image was decomposed by discrete wavelet transform,and in accordance with the characteristics of human visual system, wavelet decomposition in the low-frequency domain, Methods which average of adjacent domain instead of single wavelet decomposition coefficients was used to estimate and quantitative, watermarking was adaptively embedded in wavelet coefficients of low-frequency domain. At last, the simulation experimental results show that the algorithm for a variety of conventional image processing has good robustness.

• Periodical: Advanced Materials Research (Volumes 1044-1045)
• Pages: 991-994
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1044-1045.991
• Online since: October 2014
• Authors: Tao Liu*
• Keywords: Digital Watermarking, Human Visual System, Wavelet Transform (WT)

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