计算机应用研究2012，Vol.29Issue(12)：4631-4634,4643,5.DOI:10.3969/j.issn.1001-3695.2012.12.058
一种用于认证二值文本图像窜改定位的数字水印算法
Digital watermarking method for binary text images authentication and tamper localization
摘要
Abstract
Numerous algorithms of binary text image watermarking in embedding watermark depend on shuffling the black pixels, which would easily lead to image distortion. To solve this problem, this paper proposed a novel watermarking method that relied on the imperceptibility of yellow dots on white paper. This method counted the black pixels information of binary text image in the form of rows and columns to generate the watermarks, and then binding these watermarks with the error control code. Meanwhile, it divided the original binary text into blocks, the watermarks described as imperceptible yellow dots were then embedded into the selected white pixel of each block. Experimental results show that the watermarked binary text images have fine quality and the watermarks can be extracted blindly, which can authenticate the binary text images and accurately localise the tampered areas.关键词
二值文本图像/数字水印/窜改定位/不可视黄点/编码Key words
binary text image/ data watermarking/ temper location/ imperceptible yellow dots/ encoding分类
信息技术与安全科学引用本文复制引用
胡精易,毛建旭,赵希..一种用于认证二值文本图像窜改定位的数字水印算法[J].计算机应用研究,2012,29(12):4631-4634,4643,5.基金项目
国家自然科学基金资助项目(61072121,60835004,61271382) （61072121,60835004,61271382）
湖南省自然科学基金资助项目(12JJ2035) （12JJ2035）
湖南大学中央高校基本科研业务费资助项目 （）
