Color image hiding in cover speech signal by using multi-resolution discrete wavelet transform

Abstract EN

Data hiding, a form of steganography, embeds data into digital media for the purpose of identification, annotation, security, and copyright.

The goal of steganography is to avoid drawing suspicion to the transmission of a hidden message.

Digital audio provides a suitable cover for high-throughput steganography.

At 16 bits per sample and sampled at a rate of 44100 Hz, digital audio has the bit-rate to support large color image messages.

In addition, audio is often transient and unpredictable, facilitating the hiding of messages.

In this paper a high robustness system against the attackers in hiding of color images is presented.

We used the multi-resolution discrete wavelet transform in hiding process.

The JPEG format type for color images and WAV format for speech cover signal that used in test of system.

Programs and graphics are executed by using MATLAB version 6.5 programs.