Robust and imperceptible image watermarking in DWT-BTC domain

被引：6

作者：

Zargar, Anum Javeed ^{[1
]}

Singh, Amit Kumar ^{[1
]}

机构：

[1] Jaypee Univ Informat Technol Waknaghat, Dept Comp Sci & Engn, Solan 173234, Himachal Prades, India

来源：

INTERNATIONAL JOURNAL OF ELECTRONIC SECURITY AND DIGITAL FORENSICS | 2016年 / 8卷 / 01期

关键词：

watermarking; discrete wavelet transform; DWT; block truncation coding; BTC; robustness; peak signal to noise ratio PSNR; NC;

D O I：

10.1504/IJESDF.2016.073734

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, an algorithm for digital image watermarking based on discrete wavelet transforms ( DWT) and block truncation coding ( BTC) has been proposed. In the embedding process, the host image is decomposed into first level DWT and the watermark image is compressed by BTC. The compressed watermark is then embedded into the selected sub-band of the host image. The proposed method has been extensively tested against numerous known signal processing attacks and has been found to be robust and highly imperceptible. Further, the performance of the algorithm has been tested with fractal compression technique. The performance of the BTC-based technique is better than the fractal-based compression techniques in terms of robustness and imperceptibility.

引用

页码：53 / 62

页数：10

共 20 条

[1] Improved wavelet-based watermarking through pixel-wise masking [J].