计算机工程与应用2017，Vol.53Issue(18)：186-191,6.DOI:10.3778/j.issn.1002-8331.1612-0434
用于实现医学图像ROI对比度增强的可逆数据隐藏算法
Reversible data hiding in medical image for contrast enhancement of ROI
摘要
Abstract
Based on the characteristics which reversible data hiding technology can accurately extract the embedded secret information and restore the original carrier. It can be potentially used in the medical and military applications. The paper proposes a reversible data hiding algorithm based on histogram shift. According to the characteristics of pixel distribution in medical images, the Method of Maximum Classes Square Error is used to separate the background and the foreground to get the foreground contour. And the pre-process in an existing algorithm is improved to adaptively select the optimal pre-process interval, in the information embedding procedure, the contrast of the region of interest can be gradually enhanced. Furthermore, the original image can be exactly recovered. Compared with the previous method, in this paper, the contrast enhancement effect of medical image ROI is more obvious and the visual quality is greatly improved.关键词
可逆数据隐藏/医学图像/直方图平移/背景分割/感兴趣区域/对比度增强Key words
reversible data hiding/medical image/histogram shift/background segmentation/region of interest/contrast enhancement分类
信息技术与安全科学引用本文复制引用
夏颖慧,吴昊天..用于实现医学图像ROI对比度增强的可逆数据隐藏算法[J].计算机工程与应用,2017,53(18):186-191,6.基金项目
江苏省自然科学基金面上项目(No.BK20151131). （No.BK20151131）
