TO PROVIDE IMAGE DATA SECURITY USING EFFICIENT ENCRYPTION THEN COMPRESSION TECHNIQUE

The image encryption has to be happened before the compression of image it shown after performing number of practical approaches. But there is a problem that how to design an image encryption and then compression algorithms so that the encrypted image can be efficiently compress. The encryption - then - compression (ETC) systems of image are des igned in this paper and in that there a re considered both lossless and lossy compression. There use an AES algorithm in proposed system in that image encryption scheme operated which is to be able to provide high level of security. And with the AES, for be tter compression of encrypted images arithmetic approach is more efficient. The Huffman algorithm based approach is somewhat inconvenient In terms of compression efficiency, than the advanced lossless/lossy coders of image, which take intrinsic or unencryp ted images as inputs. Maximum of the existing ETC results dispose affect penalty on the compression efficiency in comparison