A Robust Image Watermarking Scheme Using Simplified Significant Wavelet Tree Quantization

被引：0

作者：

Sumalatha, L. ^{[1
]}

Krishna, V. Venkata ^{[2
]}

Kumar, M. Ravi ^{[3
]}

机构：

[1] UCEK, Dept CSE, Kakinada, AP, India

[2] CIET, Dept CSE, Rajahmundry, Andhra Pradesh, India

[3] JNTUK, UCEK, Dept CSE, Kakinada, Andhra Pradesh, India

来源：

2013 15TH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTING TECHNOLOGIES (ICACT) | 2013年

关键词：

Image Watermarking; Wavelet Tree Decomposition; Quantization; Simplified Significant Wavelet Tree;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

In this present work a wavelet based watermarking technique is discussed. The proposed method transforms the image into wavelet coefficients by using DWT. A Simplified Significant Wavelet Tree (SSWT) is formed with wavelet coefficients (other than at lowest level) at higher level subband descending towards lower levels. The proposed scheme quantizes the SSWT coefficients to embed a bit of watermark into the frequency part of the image. In the watermark extraction the wavelet trees are formed on the received image to retrieve the watermark bits. The proposed scheme uses adaptive casting energy at different levels and hence achieves high robustness. Various attacks were performed to test the performance and the proposed method has shown high robustness against these attacks.

引用

页数：4

共 8 条

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[2]

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[3]

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[4]

Maruthu Perumal S., 2012, IJCSIS, V10, P64

[5]