于傅里叶变换的图像加密技术研究



具体是将一幅图像用 fft 变换到频域



在频域中进行加密 我考虑的是通过随机相位来加密的方法，请问用matlab怎样实现



加密后在通过 ifft 得到加密后的图象

-Fourier transform in the image encryption technology to study the details of an image is to use fft transformed to the frequency domain in the frequency domain I consider encryption is through random-phase approach to encryption, Will the use of Matlab how to achieve the adoption of encryption ifft be encrypted images