Robust image steganography using complex wavelet transform

In this paper, we propose a steganography technique based on complex wavelet transform, singular value decomposition and chaotic sequence. Due to its shift invariance and perfect reconstruction property complex wavelet transform improves robustness against geometrical attacks. The performance evaluation of the proposed scheme has been done in terms of structural similarity index (SSIM), peak signal to noise ratio (PSNR) value and correlation coefficients. The experimental results show that the proposed technique is more robust against common image processing and geometric attacks.