184 / 2015-12-03 13:01:17

Novel Efficient & Secured Approach For Communication Using Image Steganography

data security,image steganograsphy,spatial domain image steganography

Steganography is a technique in which a secret message hides in cover image in such the way that nobody can detect the existence and/or contents of the concealed message. Before embedding, message bits are encrypted using advance encryption algorithm to increase security of message. In addition to that, stego-keys provide addition security layer. The stego-image quality is improved by using the pixel swapping and parity based embedding technique. In this practice, parity of the pixel is changed depending upon the message bits and also message bits are embedded on the basis of equality of pixel in selected 2*2 pixels block of cover image. The proposed algorithm for image steganography is highly efficient and secure. Also stego image has good perceptual invisibility