Ап Efficient data hiding Scheme Using Discrete Wavelet Transform

Abstract

Information hiding based on digital images is still the mainstream now. This article represents a new hiding method based on propability of block in frequency domain, we apply discrete wavelet transform through lifting scheme on cover image then divided subband LH to nun overloaping blocks. Each bit of secret message embedded in cover image with modified entensity value of each block. Experimental results demonstrate that the proposed scheme is robust to common image processing attack like filtering, image compression attack and addaptive noise .