Advanced Audio Steganography technique based on Coefficient Comparison in DCT domain
Kanchan Chilhate, Kailash C. Patidar, Gajendra Singh Chandel · International journal of advanced research in computer science and electronics engineering · 2015
Steganography has been proposed as a new alternative technique to enforce data security. Lately, novel and versatile audio steganographic methods have been proposed. A perfect audio Steganographic technique aim at embedding data in an imperceptible, robust and secure way and then extracting it by authorized people. Hence up to date the main challenge in audio steganography is to obtain robust high capacity steganographic systems. We have presented a high capacity and high stego-signal quality audio steganography scheme based on Coefficient comparison in DCT domain where two Coefficients of a segment are compared and based on comparison bits are embedded. The strength of our algorithm is depend on the segment size and their strength are enabled the algorithm to achieve very high embedding capacity for different data type that can reach up to 25 % from the input audio file size with lest of 50 dB SNR for the output stego signal.