Cover selection for image steganography based on image characteristics
Yang Ren-e · Journal of Optoelectronics·laser · 2014
Steganography is an important branch of information hiding techniques.Different from other information hiding techniques,the embedder has the freedom to choose a cover images which results in the improvement of the undetectability of image steganography.This paper explores the relation between cover image characteristics(variance,complexity,entropy,histogram and function of histogram)and steganography performance(relative entropy and change of histogram)to find whether image characteristics affect or decide the steganography performance.The results provide basis for cover selection of image steganography.Experiments show that the selection of the proper cover image is a more effective way to improve the undetectbility of steganographic systems.