Realization of a Reversible Data Hiding Framework using Histogram Bin Shifting for Color Images

Reversible data hiding (RDH) technique allows embedding of data inside an image and later can be retrieved with the original host image after extraction. In this paper, a RDH technique using histogram bin shifting (HBS) for color images has been proposed. In the proposed technique the color image is separated into three planes and each plane is divided into four blocks and a secret data is embedded into all four blocks of all the planes of the color image by using reversible histogram bin shifting. The same algorithm has been implemented on both the color image components separately (YCbCr/RGB). The proposed scheme attains 69396 and 34478 average embedding capacity for YCbCr and RGB color image components with minimum image distortion.