Security Building at the Line of Control for Image Stego

Abstract

Security has virtually become an indispensable non-functional requirement for any technology that deals with data. Traditional methods of imparting security using encryption have given away themselves long ago to cryptanalytic ventures. A different method of secure data transfer without revealing the mere existence of secret, called Steganography is a promising technique to ensure security. This technique camouflages secret data into a casual cover image, without affecting its visually perceived quality. This paper proposes a novel technique, which is a hybrid of cryptography, edge detection and steganography. By differentially embedding secret data into edges and smooth pixels of cover image, so that edge pixels and smooth pixels have data with different encryptions, the cryptic effect can be boosted to a greater limit, making the unauthorized extraction of secret data impossible.

New Information Hiding Technique using Features of Image

“…In the above given equation I max is the maximum the maximum intensity in the cover image. On the basis of these parameters we are comparing our method with the hybrid edged approach explained in [24] and with the performance of other basic edge detectors based steganography using 6 bits of edge pixel and 2 bits of smooth pixel. The following table shows the results of applying different edge detectors used in these techniques.…”

“…This technique combined the results of all basic edge detectors. After getting the final edge matrix 6 bits of edge pixel and 2 bits of smooth area pixel are used for embedding the secret message bits [24].…”