Embedding a Signature in an Image Based on Fractal Compress Transformations
CaoHanqiang, ZhuGuangxi · 通信学报 · 1998
We present a new approach to embed a digital signature mto an image based on the fractal compress transformations for the purpose of protecting the ownership of the images.The signature is retrievable only by the means of protected information.Our studies have shown that such a signature is difficult to detect and unchangeable without the appropriate user cryptogram.