计算机工程与应用2019，Vol.55Issue(12)：194-201,8.DOI:10.3778/j.issn.1002-8331.1803-0182
基于混沌理论和整数变换的可逆信息隐藏
Reversible Information Hiding Based on Chaotic Theory and Integer Transformation
摘要
Abstract
Aiming at the problems of traditional reversible information hiding algorithms such as declining quality of the host image, low security, and extra overhead for information recovery, a reversible information hiding algorithm combin-ing chaos theory and integer transform is proposed. The carrier image is divided into sub-blocks of size 2×2 and their pix-els are divided into labeled pixels and hidden pixels. The sub-block pixels are evened and expanded to obtain the differ-ence values with the base pixels. If the extended pixel and the difference value satisfy a given threshold condition, the cha-otic encrypted hidden information is transformed into the least significant bit of the concealed position pixel of the carrier sub-block by integer transform. Otherwise, the mark position pixel is odd-numbered and the least significant bit of the original pixel is recorded. The simulation test shows that the proposed hiding method can achieve the lossless restoration of the carrier image and the original image, which not only reduces the transmission load effectively, but also has high security.关键词
图像加密/信息隐藏/混沌理论/差异扩展/整数变换Key words
image encryption/ information hiding/ chaos encryption/ differential expansion/ integer transformation分类
信息技术与安全科学引用本文复制引用
田慧明,吴成茂,田小平..基于混沌理论和整数变换的可逆信息隐藏[J].计算机工程与应用,2019,55(12):194-201,8.基金项目
国家自然科学基金(No.61671377). （No.61671377）
