Later, using amplitude-based double-random-phase transform, the enciphered gray scale figure is formed .

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；

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Later, using amplitude-based double-random-phase transform, the enciphered gray scale figure is formed .

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；

youdao