Hybrid Successive CFA Image Encryption-Watermarking Algorithm Based on the Quaternionic Wavelet Transform (QWT)

In this paper, we present a new robust hybrid algorithm combining successively chaotic encryption and blind watermarking of images based on the quaternionic wavelet transform (QWT) to ensure secure transfer digital data. The calculations different evaluation parameters have been performed in order determine robustness our certain attacks. application CFA (Color Filter Array) images, allowed us guarantee integrity data propose an autonomous transmission system. results obtained after simulation successive then are appreciated through values which peak signal-to-noise ratio (PSNR) correlation coefficient (CC), by visual observation extracted watermarks before these show that is against some conventional