Fused image robust video watermarking technique using LWT, SVD and SWT

In today’s era medical video transactions have made healthcare better and economical. But there are concerns related to its security and a risk of misdiagnosis due to deterioration of some parameters of the video during transmission. In this scheme it is proposed to embed two watermarks into a medical video,one watermark is photo of the patient and another is the basic initial diagnosis by the doctor A unique video watermarking scheme is introduced which uses middle and low frequency bands of cover video and water mark. Two level LWT and SVD are used for embedding and extraction purpose. SWT is usedforfusion of watermarks.Several attacks have been applied to the watermarked video for extensive evaluation in terms of PSNR and correlation coefficient (CC).