一种水印数码相机的设计方案

为了认证数码照片的真实性,论文采用了基于小波变换的数字水印技术,根据数码照相机的工作原理,提出了在数码相机拍摄的过程中自动嵌入数字水印的算法,鉴别照片真伪时,从中提取出数字水印。研究结果表明:观察数字水印有无变化,可有效地鉴别照片的真伪,并且还可以进一步指出照片被篡改的位置。

A Project on Designing Watermark-Digital-Camera

In this paper, digital watermark technique based on wavelet transform is used for the sake of authenticating the authentication of digital photograph.According to the operation principle of the digital camera, a arithmetic is be proposed by which digital watermark is embed automatically when the digital camera is getting shots.Digital watermarking is extracted when the photograph is being authenticated.The result of research point out, the photograph not only can be authenticated availably by observing chan...