文章提出了一种新的基于混沌的魔方置乱算法，并将其应用于图像加密。
A new magic cube permutation algorithm based on chaos is presented in this paper for image encryption.
本文在DES加密的基础上，研究数字图像的置乱问题。
Based on DES in cryptography, image scrambling is studied in this paper.
利用参数扰动产生的有限精度混沌序列产生加密矩阵和置乱矩阵，对灰度图像进行加密。
Encryption matrixes and replacement matrixes are being generated by using the chaotic mapping via parameter perturbation, and then the gray-scale image is encrypted.
而且对于不同的图像，该评价方法能在一定程度上反映了所用的置乱变换在各个加密阶段的效果。
For different images, when some transformation is used, this appraisal method can reflect to some extent the scrambling effects in each encryption stage.
图像隐藏系统由置乱模块、加密模块和嵌入模块组成。
The image hiding system contains three modules : the chaotic module, the encryption module and the embedded module.
数字图像的灰度置乱能够改变原图像的直方图分布，在图像加密中扮演着比较重要的角色。
Digital image scrambling can change histogram distribution of original image, it plays an important role in the image encryption.
为此，本文应用一种改进的水印预处理技术，将混沌序列和图像置乱技术结合起来对灰度水印图像进行加密。
Therefore, this paper applied an improved watermark preprocessing technologies, the chaos theory and image scrambling technology combine encrypt of watermark image.
图像置乱是实现图像加密的重要手段之一。
Image scrambling is an available means for image encryption.
图像置乱是实现图像加密的重要手段之一。
Image scrambling is an available means for image encryption.
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