ISSN (Online) : 2456 - 0774

Email : ijasret@gmail.com

ISSN (Online) 2456 - 0774

STEGANOGRAPHY WITH IMPROVED EMDBASED METHOD AND PARAMETER VERIFICATION


Abstract

Abstract: The workpresented is based on the popular steganographic method Exploiting ModificationDirection (EMD). Data can be recovered from the Steganographic image only whenthe embedding EMD equation is known; therefore, its detectability is low. Theimproved EMD method can achieve excellent image quality due to the minimizedmodification of cover pixels. The proposed method uses (m^2+3) as the embeddingequation. It reaches the largest embedding capacity when m=1. However, theembedding capacity decreases drastically when the value of m increases. Also,some external attacks can distort the steganographic image while transmitting.Therefore, to ensure security at the decoder side, parameters of thesteganographic image are getting checked to find the originality of thereceived steganographic image and recovered data.

Keywords—Steganography,Image processing, Exploiting Modification Direction, Parameters of image


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