A New Robust and Secure Steganographic System for Greyscale Images

: The research work in this paper shows that the currently available stenographic methods might be quite easily detected by using sufficiently careful analysis of the transmitted data. In order to minimize the error introduced due to hiding foreign message carrier into the cover image, a robust and secure algorithm will be introduced, which might be used efficiently to protect the embedded message against attacks. The idea in the new approach depends on spreading the secret message over the cover image using both a pseudo random number generator and a hash function that drive one bit from each block of pixels in a random sequence manner. The intensity of each random pixel is predicted based on the average weighted sum value of the surrounding pixels. The difference between each random pixel is calculated causing a deviation error to be introduced. An error correction function will then be used to minimize the error introduced due to hiding foreign message carrier into the cover image a...

• Type: Conference
• Year: 2006
• Where: CSREASAM
• Authors: Hesham Elzouka
• Keywords: Cover Image, CSREASAM 2006, CSREASAM 2007, Foreign Message Carrier, Random Pixel