一种数字图像外部加载水印信息算法

An Algorithm of Loading Watermark Outside Digital Image

在传统数字水印的基础上,从水印的几何特征出发,提出了一种在数字图像外部加载水印的方法,并详细地阐述了算法的整个过程.此种方法具有对原始图像无损失、保留水印的明显几何特征等特点.

Basing on the geometry character of the digital watermark, this paper give a method to load the watermark outside digital image and expound the whole process of the algorithm. The method has a few character such as no lose to the origin image and retaining the clear geometry character,and so on.