Data hiding in spatial domain image using chaotic map

Steganography is the science of dissimulation or data hiding. Its goal is to communicate in the secret i.e. The message is transferred via a media support without being visible. The purpose of this paper is to propose a new approach of data hiding. On the one hand, this method is based on the use of chaotic map to ensure security in the embedding phase. The chaos is characterized by many properties as ergodicity, sensitivity to initial conditions and parameters, random appearance. These properties make chaotic systems a favorable candidate for their use in secure applications as data hiding, watermarking and cryptography. Besides, we protect secret information by maximizing the number of embedded bits in each embedding zone.