计算机科学与探索2016，Vol.10Issue(6)：856-866,11.DOI:10.3778/j.issn.1673-9418.1506064
可逆数据隐藏算法在医学图像上的应用
Reversible Data Hiding Algorithm and Its Application to Medical Images
摘要
Abstract
Reversible data hiding is a kind of information hiding technique that can exactly recover the original image after data extraction from the image with hidden data. Due to this property, it has been widely used in the areas of med-ical, remote sensing and military. This paper proposes a reversible data hiding algorithm based on histogram shifting, which can alleviate the visual distortion caused by an existing reversible data hiding algorithm, and reversibly hide the patient information into the contrast-enhanced image. According to the characteristics of pixel distribution in medical images, the pre-processing is improved to adaptively choose the optimal intervals and the method of maximum classes square error is used to separate the background and the foreground. In the information hiding procedure, the contrast of the region of interest can be gradually enhanced. Furthermore, the original image can be exactly recovered when needed. The experimental results on two sets of medical images show that the proposed algorithm can effectively re-duce the visual distortions that may be caused by the previous algorithm, while the contrast enhancement effects can be achieved with considerable hiding rates.关键词
可逆数据隐藏/直方图平移/对比度增强/医学图像Key words
reversible data hiding/histogram shifting/contrast enhancement/medical image分类
信息技术与安全科学引用本文复制引用
袁陶希,吴昊天,徐依凌,胡晓渭,刘渊..可逆数据隐藏算法在医学图像上的应用[J].计算机科学与探索,2016,10(6):856-866,11.基金项目
The National Natural Science Foundation of China under Grant No.61100169(国家自然科学基金) （国家自然科学基金）
the Fundamental Research Funds for the Central Universities of China under Grant No. JUSRP1047(中央高校基本科研业务费专项资金) （中央高校基本科研业务费专项资金）
the Natural Science Foundation of Jiangsu Province under Grant No. BK20151131(江苏省自然科学基金面上项目) （江苏省自然科学基金面上项目）
