文章基本信息

标题：Color Image Watermarking using JND Sampling Technique
本地全文：下载
作者：Rajesh B Raut ; Kishor M Bhurchandi
期刊名称：Computer Engineering and Intelligent Systems
印刷版ISSN：2222-1727
电子版ISSN：2222-2863
出版年度：2011
卷号：2
期号：6
页码：9-16
语种：English
出版社：International Institute for Science, Technology Education
摘要：This paper presents a color image watermarking scheme using Just Noticeable Difference (JND) Sampling Technique in spatial domain. The nonlinear JND Sampling technique is based on physiological capabilities and limitations of human vision. The quantization levels have been computed using the technique for each of the basic colors R, G and B respectively for sampling color images. A watermark is scaled to half JND image and is added to the JND sampled image at known spatial position. For transmission of the image over a channel, the watermarked image has been represented using Reduced Biquaternion (RB) numbers. The original image and the watermark are retrieved using the proposed algorithms. The detection and retrieval techniques presented in this paper have been quantitatively benchmarked with a few contemporary algorithms using MSE and PSNR. The proposed algorithms outperform most of them.
关键词：Color image watermarking; JND sampling; Reduced Biquaternion; Retrieval