计算机工程2011，Vol.37Issue(18)：121-123,126,4.
基于二值图像的信息隐藏算法
Information Hiding Algorithm Based on Binary Image
摘要
Abstract
This paper presents a new information hiding algorithm used for binary image with a small distortion, aiming at the feature that the changing trace is obvious in binary image. The selection criteria of turning point is presented and the set of pixels suitable for turning is denoted. Considering the visual features, the method for computing the scores of the turning pixels is presented. An image block containing the turning pixel can be viewed as a cover block containing the hidden data after the threshold of choosing the turning point is set up. The binary image is divided into blocks, and the STC(Syndrome-trellis Codes) encoding is used to choose the optimal path in the sequence of cover blocks for hiding message. Experimental results show that the proposed algorithm can reduce the distortion of the cover image, and the stego image has good visual effect, while the statistical properties of the variance of L-type in a binary image can be maintained. Therefore, it can be effective against the related steganalysis.关键词
二值图像/信息隐藏/隐写编码/图像失真/可修改得分Key words
binary image/ information hiding/ steganographic coding/ image distortion/ flippable score分类
信息技术与安全科学引用本文复制引用
刘九芬,付磊,张卫明..基于二值图像的信息隐藏算法[J].计算机工程,2011,37(18):121-123,126,4.基金项目
国家自然科学基金资助项日(60803155) （60803155）
