(西北大学 信息科学技术学院 西安 710127)
关键词:信息隐藏; 图像置乱; 新的Arnold反变换; 离散余弦变换
Image information hiding scheme based on new anti-Arnold transformation
ZHU Ling-fang WANG Bing
(College of Information Science & Technology Northwest University Xi’an 710127 China)
Abstract:This paper proposed a new algorithm of public image transformation for information hiding based on a new anti-Arnold. Firstly transformed a public image by traditional Arnold transformation. Then a public image was divided up some blocks and transferred by DCT hided the secret image into coefficient of lower frequency. Last recovered the public image by the new anti-Arnold transformation. So reduced the time of calculating what’s more the security was enhanced greatly. At the end tested its the robustness with many attack experiments. The results show that the method is available and efficiency. Advantage and feasibility of a new anti-Arnold are proved. ......