计算机技术与发展2011，Vol.21Issue(3)：174-177,4.
基于SIFT的抗几何攻击水印研究与实现
Watermark Research and Implementation Against Geometric Distortion Based on SIFT
摘要
Abstract
When digital watermark meets geometric attack, generally the synchronization between the embedding and extraction of the watermark is lost, which means the watermark algorithm is useless. The algorithm based image features can better resist geometric distortion, especially the algorithm based on SIFT. SIFT is not only can resist PST, but also can resist the change of the illumination and viewpoint. Based on the principle analysis of SIFT, introduce the key reasons that SIFT can endure RST distortion, then give out the implementation using Matlab program, and propose a digital watermark scheme which can endure PST attack based on SIFT, by the way,propose a general definition for image special points, and discuss the general and idle requirement for digital watermark special points.关键词
SIFT/几何攻击/数字水印分类
信息技术与安全科学引用本文复制引用
张斌,王嘉祯,文家福,常雷..基于SIFT的抗几何攻击水印研究与实现[J].计算机技术与发展,2011,21(3):174-177,4.基金项目
河北省科技基金资助项目(05213579) （05213579）
