Fragile watermarking and unkeyed hash function implementation for image authentication on CNN-UM

Image authentication and integrity have become an important issue for multimedia application since digital images may be easily modified and perfectly reproduced. This paper is addressed the protection of image authentication and integrity on CNN-UM. Watermarking and Cryptographic hash functions are the techniques for the protection. In this paper we propose two methods using each technique, which are a spatial domain fragile watermarking and a novel unkeyed hash function which is described named Cellhash2D.