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Tikrit Journal of Engineering Sciences (2018) 25(1) 1- 7
High Capacity Audio Steganography Based on Contourlet Transform
|Abbas Salman Hameed|
|Department Electronic Eng., Diyala University, Iraq|
The science of hiding information behind other cover media file is known steganography. Audio steganography means that a secret message is hidden by embedding it in an audio file. This paper presents a new audio steganography approach that is used the contourlet transform to hide a speech and image in an audio signal. The cover audio signal is modified to be suitable as input to contourlet transform and then secret data embed to the subbands of contourlet transform. The results showed high hiding capacity of data up to 90% of cover audio file size. In addition, performance analysis by measures factors: Normalized Correlation (NC), Signal to Noise Ratio (SNR) and Peak Signal to Noise Ratio (PSNR) appears good quality results for both stego and secret data.
Keywords: Steganography, Audio steganography, Contourlet transform.
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