A Secure fragile Watermarking Algorithm for medical Image Authentication in the DCT Domain

The ease and extensive use of digital imaging systems raise serious questions about integrity and authenticity of digital images particularly in medical applications. A medical image requires great integrity of content since any change in the image might affect the diagnosis even if it is of small amount. Fragile watermark could be the best technique to provide efficient image authentication tool for medical images. In this paper we present different methods developed in image watermarking used in order to verify integrity and authenticity of images. We present after that our proposed method and validated the embedding and extracting procedures