Robust image steganography technique based on redundant discrete wavelet transform

In this paper, a robust image steganography technique based on redundant discrete wavelet transforms has been proposed. Steganography is the process of hiding one medium of communication like text, audio and image within another. The proposed steganography algorithm uses blind recovery approach. We have tested the proposed method on different cover and payload images. Simulated results are analyzed using PSNR (Peak to Signal Noise Ratio) and BER (Bit Error Rate). Analysis of the proposed method shows its robustness against various signal processing and geometric attacks.