A New Image Encryption Method Based on Phase and Amplitude of Fractional Domain
Liping Wang · Computer Technology and Development · 2009
The digital media has become a main way for information communication along with the wide use of network.At the same time,multimedia information security problems including copyrights piracy emerged as side effects of the popularity of digital representation and distribution over network.In this paper,the discrete fractional Fourier transfornn coefficient matrix was transformed by chaotic sequences.It points out a new method of image encryption.The test results show that the new encryption method will keep the image file in high secrecy and the key is simple.