Reversible steganography techniques: A survey

Abstract Steganography is the technique of embedding secret data to another multimedia type. A reversible steganography scheme (RSS) uses image features to hide the secret data into the host image. In the extraction procedure the concealed information is extracted from the stego-image, which can subsequently be restored to its original status. This chapter presents a detailed survey of different types of RSS, including the difference expansion scheme (DE), the histogram shifting scheme (HS), the pixel-value ordering scheme (PVO), the dual-image-based scheme, and the interpolation-based scheme.