基于分数阶四元数傅里叶变换的彩色图像自适应水印算法

doi:10.11999/JEIT160169

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Abstract

Some existing color image adaptive watermarking algorithms do not fully utilize the color information in the adaptive process, or do not consider the holistic property of the components of a color host image. To overcome these drawbacks, this paper proposes a color image adaptive watermarking algorithm based on Fractional Quaternion Fourier Transform (FrQFT). Firstly, the texture, edge and color tone features of the blocks of the host image are extracted using the Human Vision System (HVS). After that, the embedding strength values of the blocks suitable to watermark embedding are set adaptively according to the extracted feature. Finally, the quantization index modulation and the multiple redundant embedding strategy are used to insert the watermark in the FrQFT domain with the adaptive strength. Experimental results show that the proposed algorithm is superior over the existing algorithm using Quaternion Fourier Transform (QFT) and the algorithm based on Fractional Fourier Transform (FrFT).

Key words： Color image Adaptive watermarking Quaternion Fractional Fourier Transform (FrFT)

Received: 25 February 2016 Published: 08 September 2016

PACS:

TP391

Fund:

The National Natural Science Foundation of China (61272421, 61572258, 61232016, 61572257), The Natural Science Foundation of Jiangsu Province (BK20151530, BK20150925), The Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), The Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology (CICAEET)

Corresponding Authors: CHEN Beijing E-mail: nbutimage@126.com

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	WANG Jinwei
	ZHOU Chunfei
	WANG Shuiping
	CHEN Beijing
	SUN Xingming

Cite this article:

WANG Jinwei,ZHOU Chunfei,WANG Shuiping等. Color Image Adaptive Watermarking Algorithm Using Fractional Quaternion Fourier Transform[J]. JEIT, 2016, 38(11): 2832-2839.

URL:

http://jeit.ie.ac.cn/EN/10.11999/JEIT160169 OR http://jeit.ie.ac.cn/EN/Y2016/V38/I11/2832

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