IMAGE PROCESSING BASED SECURITY ANALYSIS

Abstract

Using image stitching and image steganography security can be provided to any
image which has to be sent over the network or transferred using any electronic mode.
There is a message and a secret image that has to be sent. The secret image is divided into
parts. The first phase is the Encrypting Phase, which deals with the process of converting
the actual secret message into cipher text using the AES algorithm. In the second phase
which is the Embedding Phase, the cipher text is embedded into any part of the secret
image that is to be sent. Third phase is the Hiding Phase, where steganography is
performed on the output image of Embedding Phase and other parts of the image where the
parts are camouflaged by another image using least significant bit replacement. These
individual parts are sent to the concerned receiver. At the receivers end decryption of Hiding
phase and Embedding Phase takes place respectively. The parts obtained are stitched
together using k nearest method. Using SIFT features the quality of the image is improved.