计算机应用研究2016，Vol.33Issue(4)：1159-1163,5.DOI:10.3969/j.issn.1001-3695.2016.04.044
基于图像插值和直方图平移的可逆水印算法
Reversible watermarking algorithm based on image interpolation and histogram translation
摘要
Abstract
The existing reversible watermarking algorithm based on histogram translation has the problem of low embedding ca-pacity.This paper presented a new algorithm combined with the feature of image pixels after amplifying.It was not only in-creased the number of pixels,but also enhanced the correlation among the pixels by amplifying the picture 4 times with inter-polation.It calculated the vertical and horizontal pixels to obtain prediction error value and construct histograms,then embed-ded watermark information at the peak of histograms.It extracted the watermarking in the reverse process and recovered the o-riginal image according to the principle of interpolation.The experimental results show that the embedding capacity has in-creased by 3 times after being amplified.The presented algorithm shows better invisibility and larger embedding capacity,and also can be applied to the domain of image hiding and information security.关键词
可逆水印/插值/图像放大/直方图平移Key words
reversible watermarking/interpolation/image magnification/histogram translation分类
信息技术与安全科学引用本文复制引用
李雪景,李江隐,康宝生..基于图像插值和直方图平移的可逆水印算法[J].计算机应用研究,2016,33(4):1159-1163,5.基金项目
国家自然科学基金资助项目（61272286）；陕西省自然科学基础研究计划资助项目 （）
