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

峰值信噪比的源函数，数值越大，表示图像越清晰，反之，图像模糊。-Source function peak signal to noise ratio, the greater the value, the image is more clear, on the contrary, the image is blurred.