PSNR

peak signal-noise ratio

Contents

DESCRIPTION

  P = PSNR(X,XC);
  compute the PSNR of an noisy image with respect to its original image.
        PSNR = 10*log10(max(X)^2/MSE(X-XC));
  INPUT
      X - original image
     XC - noisy image
  OUPUT
      P - PSNR

EXAMPLE

    X = imread('barbara.gif');
    X = double(X);
   nX = randn(size(X))*30;
    Y = X+nX;
    P = PSNR(X,Y)

P =

   18.5792

See also

DENOISING

Copyright

 Copyright (C) 2011. Xiaosheng Zhuang, University of Osnabrueck

Published with MATLAB® 7.10