Secure Image Transmission using Visual Steganography

Abstract

In today’s information age, information sharing and transfer has increased exponentially. The threat of an intruder accessing secret information has been an ever existing concern for all. Cryptography and Steganography are the most widely used techniques to overcome these threats. Steganography is a branch of security technique which involves the art of hiding the existence of the message between sender and the intended recipient. Here, steganography has been used to hide digital images. Cryptography involves converting the message text into an unreadable cipher. To overcome this predictability, we propose the concept of visual cryptographic steganography where slices of original secret image upon encryption are embedded within a cover image. The resultant stego image is then decrypted to recover the original image.