图像可逆信息隐藏研究发展综述

Review of reversible data hiding in images

可逆信息隐藏技术能够恢复图像初始状态,其独特之处在于图像本身就是一个复杂语义的信息表达.这既要求可逆嵌入操作所施加的影响不违背图像所表达的主要语义,又要求该操作是可逆转的.这一特点不仅是敏感领域信息处理所亟需,也是常见领域处理中所不排斥的.现有可逆信息隐藏研究成果繁多,迁移知识广泛,本文将简要梳理可逆信息隐藏的发展脉络,回顾基本技术框架和代表性研究成果,归纳各类方法的特点和优势.然后根据当前人工智能发展的趋势,展望可逆研究的未来发展方向.研究结果表明:增加可逆算法的多样性、普适性研究,引入新的评价指标来导引算法设计与现实应用需求结合,对推动可逆研究与多学科融合解决更难、更广泛的问题,实现信息安全行业的长远发展,具有一定的必要性和可行性.

Reversible Data Hiding(RDH)can recover the initial status of image.This technique is unique because image is a complex semantic representation of information.This requires both that the effect exerted by the reversible embedding operation does not violate the main semantics expressed by the image and that the operation is reversible.Such reversibility is not only urgently needed for information processing in sensitive domains,but also not excluded in common-domain processing.Currently,the research on RDH has derived an enormous number of algorithms,each of which entangles a specialty of other disciplines.This paper goes back to the initial works of RDH and describes how they evolved in later development.The advantages and characteristics of classic algorithms are summarized in a simple and easy fashion.In addition,according to the current development trend of artificial intelligence,the future directions of RDH research are prospected.Based on the research results,it is valuable to promote the RDH design in a diverse and universal way,and to formulate the optimization of new application scenarios by introducing new metrics.The long-term development of information security industry is feasible if RDH can realize multidisciplinary integration and respond more to arising practical demands.