An Effective Technique for Hiding Image in Audio

Najiya Thasneem. E, Renjith V Ravi

Abstract: This paper introduces an improved technique to hide image in audio. The method used here is to provide more security other than the previous works. In this paper, the secret messages are embedded into the cover audio file by modifying its amplitude. Here the cover audio file is converted from time domain to frequency domain by using FFT. The security of the scheme is increased by using a key to adjust the hiding technique. The image embedded audio is inaudible and this method is suitable for hiding data in audio. If there exist any noise in the stego audio, then also the secret data can be extracted. In this technique, the secret image is embedded in its compressed form and an error correction technique also used to improve the robustness of the system. Finally the original image can be retrieved.

Keywords: Audio steganography, amplitude modification, fast fourier transform, embedding algorithm, phase, extracting algorithm, compression