0001
0002
0003
0004
0005
0006
0007 figure;
0008
0009 clc;
0010 echo off;
0011
0012 if (isempty(who('Id')))
0013 disp('To run this script there should be an image named Id in the workspace.');
0014 disp('Id must contain the noise image.');
0015 disp('apply_degradation.m can be used to simulate several degradations');
0016 disp('For instace:');
0017 disp(' load barbara256');
0018 disp(' [Id,PSF]=apply_degradetion(Im,''gn'',400);');
0019 return;
0020 end
0021
0022 PSF = zeros(11);
0023 PSF(6,6)=1;
0024
0025 Nlambdas = 60;
0026
0027 lambdas = logspace(-4,3,Nlambdas);
0028
0029 disp(['Restoring image using L2 (' num2str(Nlambdas) ' values of lambda)']);
0030
0031 imrl2=restore(Id,'L2',PSF,lambdas);
0032
0033 imshow(imrl2/255);
0034 title('Restored (L2)');
0035
0036 disp('Press any key...');
0037 pause;
0038
0039 disp(['Restoring image using CSF (' num2str(Nlambdas) ' values of lambda)']);
0040
0041 imrcsf=restore(Id,'CSF',PSF,lambdas);
0042
0043 figure;
0044 imshow(imrcsf/255);
0045 title('Restored (CSF)');
0046
0047 disp('Press any key...');
0048 pause;
0049
0050 disp(['Restoring image using AR4 (' num2str(Nlambdas) ' values of lambda)']);
0051
0052 imrar4=restore(Id,'AR4',PSF,lambdas);
0053
0054 figure;
0055 imshow(imrar4/255);
0056 title('Restored (AR4)');
0057
0058 disp('Press any key...');
0059 pause;
0060
0061 disp(['Restoring image using AR8 (' num2str(Nlambdas) ' values of lambda)']);
0062
0063 imrar8=restore(Id,'AR8',PSF,lambdas);
0064
0065 figure;
0066 imshow(imrar8/255);
0067 title('Restored (AR8)');
0068
0069 disp('Press any key...');
0070 pause;
0071
0072 disp(['Restoring image using AR12 (' num2str(Nlambdas) ' values of lambda)']);
0073
0074 imrar12=restore(Id,'AR12',PSF,lambdas);
0075
0076 figure;
0077 imshow(imrar12/255);
0078 title('Restored (AR12)');
0079
0080 disp('Press any key...');
0081 pause;
0082
0083 disp(['Restoring image using PERCEPTUAL (' num2str(Nlambdas) ' values of lambda)']);
0084
0085 imrper=restore(Id,'PER',PSF,lambdas);
0086
0087 figure;
0088 imshow(imrper/255);
0089 title('Restored (PERCEPTUAL)');
0090
0091