Determination of optimal parameters for detecting the existence of secret information hidden by the double random-phase encoding technique |
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| Authors: | Lu Xi Zhou Xin Yuan Sheng Li Xiao-feng Lu Pei Chen Yao-yao |
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| Institution: | 1. Department of Opto-electronics Science and Technology, Sichuan University, Chengdu 610065, PR China;2. College of Information, Shi Hezi University, Shi Heizi 832003, PR China;1. Department of Information Engineering and Computer Science, Feng Chia University, Taichung, 40724, Taiwan, ROC;2. Department of Computer Science and Information Engineering, Asia University, Taichung, 41354, Taiwan, ROC;3. Department of Computer Science, National Tsing Hua University, 30013 No. 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, ROC;4. College of Information Technology, The University of Danang, Danang University Village, Luu Quang Vu Street, Danang, Vietnam;1. State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, PR China;2. Collaboration Innovation Center of Electronic Materials and Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR China;1. Department of Information and Engineering, North China University of Water Resources and Electric Power, 36, Bei-huan Road, Zhengzhou, Henan 450011, PR China;2. Henan Musuem, 8, Nongye Road, Zhengzhou 450008, PR China;3. Department of Opto-electronics Science and Technology, Sichuan University, Chengdu 610065, PR China;1. Department of Information Engineering, North China University of Water Resources and Electric Power, 36, Bei-huan Road, Zhengzhou, Henan 450011, PR China;2. Henan Musuem, 8, Nongye Road, Zhengzhou 450008, PR China;3. Department of Opto-electronics Science and Technology, Sichuan University, Chengdu 610065, PR China;1. Department of Opto-Electronics Science and Technology, Sichuan University, Chengdu, 610065 China;2. South-West Institute of Technical Physics, Chengdu, 610041 China;3. Department of Information and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, Henan, 450011 China;1. School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China;2. Hubei Key Laboratory of Naval Architecture and Ocean Engineering Hydrodynamics (HUST), Wuhan 430074, PR China;3. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE), Shanghai 200240, PR China;4. Chevron, Area 52 Technology–ETC, Santa Fe, NM 87508, USA |
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| Abstract: | A new method based on statistical hypothesis detection for information hidden using the double random-phase encoding technique is introduced. According to this method, a series of windows are opened on the lowest bit-plane of image, and an exclusive OR (XOR) operation is performed between different pixels in every window. The results of XOR operation are then analyzed. Using this method, we can judge whether an image contains secret information encrypted by the double random-phase encoding technique. The result of the judgment may be influenced by two parameters, namely the size of the window and the threshold value. A further study is also made to determine the optimal parameters. |
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