Non-linear method of medical image digital watermarking
Zhou Hui-zhong · Jisuanji gongcheng yu sheji · 2006
Medical image doesn't be allowed to do transform of destroyed compression when it is stored and transmitted.Hospitals are responsible for its medical images.Medical image should be prohibited from being modified,especially in focus.In order to achieve this purpose,a medical image digital watermarking method based on symbolic dynamics is proposed.When the watermarking is embed-ded,the key area of medical image needs not to be modified by using this method.Once medical image is modified,this situation may be found in order to make medical image intact by checking watermarking.