基于混沌理论和Arnold变换的X射线数字图像加密算法

X-ray Digital Image Encryption Algorithm Based on Chaos Theory and Arnold Transformation

图像经单一的混沌算法加密后,还留有原图像轮廓,存在加密强度不足的问题。文章提出应用二维Arnold矩阵变换和混沌理论混合加密X射线图像的算法,利用Arnold扰乱图像位置的特点,结合混沌加密理论,有效地解决了单一混沌加密算法对图像加密强度不够的问题。最后,通过实验验证了该算法的有效性。实验结果表明,该算法的加密安全性很高。

After a single chaotic algorithm encryption, the image also left the outline of the original image, but there is a problem of insufficient strength of the encryption. This paper presents the algorithm of combining two-dimensional Arnold matrix transformation and Chaos Theory for the eneryption of X-ray image, uses the features of Arnold disturbing the image position, combines with the theory of chaos encryption to effectively solve the problem of inaufficient atrength of the single chaotic image encryption algorithm, and finally shows the effectiveness of the algorithm through experiment. Experimental results show that the encryption of this algorithm is very safe.