보간법과 개선된 JPEG 예측을 통한 스테가노그래픽 기법 연구

The previous steganographic methods by using the interpolation were difficult to estimate exactly because the size of cover images are extended by interpolation algorithms. In this paper, we propose the improved steganographic method based on the pixel replacement algorithms. In our method, we cannot extend a cover image, but also can estimate exactly the image quality of the stego-images. In the experimental results, the estimated quality and embedding capacity of stego-image are shown on three pixel replacement methods.

 

한국군사과학기술학회지, 제16권 제2호(2013년4월) pp. 185-190