Position-Aware Guided Hiding Data Scheme with Reversibility and Adaptivity for Dual Images

Reversible data hiding (RDH) in dual images is a technique that shares secret messages into two similar shadow images, while the and cover image can be restored only when those shadows are gathered simultaneously. In this paper, novel turtle shell-based RDH scheme based on symmetric property presented order to increase embedding capacity maintain good visual quality under guidance of position-aware. First, we classify each pixel pair one four types according their locations then determine sunflower area centered around it construct combination positions table. Using table, concealed by generating images. At decoder’s side, complete restoration accomplished identifying position relationship between stego-pixel pairs. The experimental results confirmed proposed position-aware guided superior some relevant works aspects or quality. addition, provides secure communication effectively resist attacks value difference histogram, relative entropy, regular singular analysis.