对该图形进行振幅型双随机相位加密变换，得到原信息的加密灰度图；
Later, using amplitude-based double-random-phase transform, the enciphered gray scale figure is formed .
论证表明新方案的加密变换几乎是不可被破译的，整个系统的工作不会因部分秘密密钥的泄露而受到任何破坏。
Even though some secret keys of the system may be known, the security of this system is unlikely to be broken and thus secure communication may continue even in this event.
该方法在一定的量化标准下利用小渡变换提取图象的特征信息，通过混沌序列对其加密生成数字水印。
In this method, the original image 's feature is extracted by using wavelet transform and quantization. The feature information is changed into watermark by the chaotic sequence encryption.
应用推荐