Abstract: In the current scenario image tampering remains as a challenging issue. In this paper water marking algorithm for the protection of images against tampering is used. The method can detect and localize alterations of the original image. A secure key and a random number generator are used to hide the information in a secret, undetectable and unambiguous way. Here Set Partitioning in Hierarchical Trees (SPIHT) is the source channel coding algorithm for image recovery and Reed Solomon code for channel coding. The encoded image is decoded at the receiver end for the recovery. The recovery of tampering efficiently without any distortion is accomplished here.
Keywords: Watermarking, SPIHT, Reed-Solomon, Permutation, Hash detection.