On the Use of Gabor Filters in Designing Steganographic Distortion
With recent advances in steganography the most integral part left to steganographer is designing the distortion function. In this paper we propose a new adaptive scheme in defining the distortion function using Gabor filters in spatial domain. Compared to other embedding algorithms, our proposed method, using fine directional grid of Gabor filters, put higher emphasis on cluttered and textured areas in the image than on the edges. Our test results using the state-of-the-art steganalysis algorithms show the superiority of our approach.