gwnoisy2.m

denoising image with DWT

function Noisyim = GWNoisy2(im,sigma)
%  GWNoisy2- Addition of a 2D Gaussian White Noise
%  Usage
%    Noisyim = GWNoisy2(im,sigma)
%  Inputs
%    im        Input simage
%    sigma   s.d for additive GWN
%  Outputs
%    Noisyim    Noisy image
%

n=length(im);
Noise=GWN2(n,sigma);
Noisyim=im+Noise;

% Written by Maureen Clerc and Jerome Kalifa, 1997
% [e-mail], [e-mail]
    
    
 
 
%
%  Part of Wavelab Version 850
%  Built Tue Jan  3 13:20:39 EST 2006
%  This is Copyrighted Material
%  For Copying permissions see COPYING.m
%  Comments? e-mail [e-mail]