Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Image Steganalysis with Binary Similarity Measures ˙smail Avcıbas I | EURASIP Journal on Applied Signal Processing 2005 17 2749-2757 2005 Hindawi Publishing Corporation Image Steganalysis with Binary Similarity Measures Ismail Avcibas Department of Electronics Engineering Uludag University 16059 Bursa Turkey Email avcibas@ Mehdi Kharrazi Department of Electrical and Computer Engineering Polytechnic University Brooklyn NY 11201 USA Email mehdi@ Nasir Memon Department of Computer and Information Science Polytechnic University Brooklyn NY 11201 USA Email memon@ Bulent Sankur Department of Electrical and Electronics Engineering Bogazici University 34342 Istanbul Turkey Email Received 14 March 2004 Revised 10 May 2005 Recommended for Publication by Mauro Barni We present a novel technique for steganalysis of images that have been subjected to embedding by steganographic algorithms. The seventh and eighth bit planes in an image are used for the computation of several binary similarity measures. The basic idea is that the correlation between the bit planes as well as the binary texture characteristics within the bit planes will differ between a stego image and a cover image. These telltale marks are used to construct a classifier that can distinguish between stego and cover images. We also provide experimental results using some of the latest steganographic algorithms. The proposed scheme is found to have complementary performance vis-a-vis Farid s scheme in that they outperform each other in alternate embedding techniques. Keywords and phrases steganography steganalysis universal steganalysis. 1. INTRODUCTION Steganography refers to the science of invisible communication where communication between two parties is undetectable by an eavesdropper. This is quite different from cryptography where the goal is to make the content of the communications inaccessible to an eavesdropper. In contrast steganographic techniques strive to hide the very presence of the message or .
