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论文类型：期刊论文

发表时间：2015-01-01

发表刊物：Journal of Information Hiding and Multimedia Signal Processing

收录刊物：EI、Scopus

卷号：6

期号：4

页面范围：674-685

ISSN号：20734212

摘要：In the last few years, hiding information on grayscale images has been drawing more attention in many applications. In this paper we propose a novel hiding algorithm on grayscale images by using line segments. We generate an initial set of line segments and use Sobel operator, which is an edge detection method, to detect the complex area. We then embed more secret data into the line segments located in the complex area. On the other hand, we reduce the number of embedded data in the smooth area. The experimental results demonstrate the superiority of our proposed scheme in terms of high capacity. The hiding capacity can be 2 bpp for all test images with imperceptible image distortion. ? 2015 ISSN.