Arnold图像置乱Matlab代码 ％％ -------------------------------------------------------------------- ％％ ％ Function: Arnold图像置乱 ％ Arnold: x =(x+y) mod N, y =(x+2y) mod N ％ 变换周期(N,M): (128,96),(256,192),(512,384) ％ Argument: dPSNR: 置乱后PSNR ％ outIm

包含了傅里叶变换的幅频特性和相频特性，其中包括8点、16点、32点的程序代码，运行后可直接产生图形。-Includes Fourier transform amplitude-frequency characteristics and phase-frequency characteristics, including 8:00, 16:00, 32 points of the program code can be run directly the graphics.