【摘要】 该文针对由于几何变换攻击所导致的水印丧失同步信息的问题,提出了一个基于图像归一化(ImageNormal-ization)的水印嵌入方案和实现方法,讨论了对经过几何变换攻击(平移变换,旋转变换,翻转变换,比例变换)的对象进行归一化,并在此基础上探讨了水印的嵌入及检测的原理和实现,还用具体实例验证了该文的算法。更多还原

【Abstract】 Geometric transformations are main obstacles to image /video watermarking systems currently.The main prob-lem caused by geometric distortions is that watermark information embedded in those medias will lose sync between embedder and detecter.This paper proposes a watermarking scheme which is based on the concept of image normaliza-tion.It discusses normalizations toward different geometric attacks(translations,rotation,flipping and scale),then presents a watermarking method applied to normalized images.In the end,the paper uses some samples to test the algorithm.更多还原