Hybrid Edge Detection-Based Image Steganography Technique for Color Images

Abstract

Steganography, Greek meaning covered writing, is a branch of information security which hides the existence of important information in order to prevent any unauthorized access. The number of image steganography techniques has been proposed so far to achieve the goals of steganography, i.e., high payload, less imperceptibility, and more robustness. In this paper, we are proposing a new steganography technique for colored image (i.e., RGB images). The proposed scheme has taken into consideration the property that more information can be hidden into the contrast areas rather than in the bright areas. This scheme makes the use of hybrid edge detector, i.e., combination of fuzzy and canny edge detector. After detecting edges, embedding is done accordingly. The proposed scheme achieves all the three goals of steganography appropriately.