Robust block and gray-level histogram based watermarking scheme

Chi Man Pun, Xiaochen Yuan

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

As one of the crucial problems in watermarking, robustness against geometric distortion and JPEG compression becomes more than challenging and problematic. In this paper, a robust watermarking scheme based on block histogram and gray-level histogram is proposed for gray images. For embedding, the scheme orders the pixel gray-levels and groups the pixels into blocks of dynamic size, each of which has the same number of gray-levels, thus generates the block histogram. According to the block histogram, the Number-KEY and Value-KEY generate. Then the gray-level histogram is modified to form a specially distributed, indicating the embedding bits. For extraction, the watermarked image, the Number-KEY, and the Value-KEY are adopted together to get the watermark bits. Experimental results show that the scheme is highly robust against not only JPEG compression, but also geometric attacks and common signal processing such as median filtering. The comparison results between the proposed scheme and the existing methods indicate its advantages.

原文English
主出版物標題Advances in Multimedia Information Processing - PCM 2009 - 10th Pacific Rim Conference on Multimedia, Proceedings
頁面590-601
頁數12
DOIs
出版狀態Published - 2009
對外發佈
事件10th Pacific Rim Conference on Multimedia, PCM 2009 - Bangkok, Thailand
持續時間: 15 12月 200918 12月 2009

出版系列

名字Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
5879 LNCS
ISSN(列印)0302-9743
ISSN(電子)1611-3349

Conference

Conference10th Pacific Rim Conference on Multimedia, PCM 2009
國家/地區Thailand
城市Bangkok
期間15/12/0918/12/09

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