How to request for user input for the following code? How do I modify the matlab code below to prompt user to choose images from folder for InputImage and OutputImage?

InputImage=imread('a.jpg');

OutputImage=imread('b.jpg'); whos

n=size(InputImage);

 M=n(1);

 N=n(2);

 MSE = sum(sum((InputImage-OutputImage).^2))/(M*N);

PSNR = 10*log10(255*255/MSE);

 fprintf('\nMSE: %7.2f ', MSE);

 fprintf('\nPSNR: %9.7f dB', PSNR);

[Khaled Al-Faleh]

try this to allow user to select image from his device

[filename,path]=uigetfile('*.png','file selector');
Image=strcat(path,filename);
Img=imread(Image);

[Jan]

@Khaled Al-Faleh: Do not use the term "path" as a variable, because this is an important Matlab function. Such shadowing can cause very strange results during debugging. fullfile is smarter than strcat, because it considers the file separators.

Answer 1

[Jan]

[InFile, InPath] = uigetfile('*.jpg', 'Import image file:');
if ~ischar(InFile)
  disp('User aborted file import');
  return;
end

[OutFile, OutPath] = uigetfile('*.jpg', 'Export image file:', InPath);
if ~ischar(OutFile)
  disp('User aborted file export');
  return;
end

InFile  = fullfile(InPath, InFile);
OutFile = fullfile(OutPath, OutFile);

[jolene kuan]

[InFile, InPath] = uigetfile('*.jpg', 'Import image <file:')>; if ~ischar(InFile) disp('User aborted file import'); return; end [OutFile, OutPath] = uigetfile('*.jpg', 'Export image <file:'>, InPath); if ~ischar(OutFile) disp('User aborted file export'); return; end InFile = fullfile(InPath, InFile); OutFile = fullfile(OutPath, OutFile);

 n=size(InFile);

 M=n(1);

 N=n(2);

 MSE = sum(sum((InFile-OutFile).^2))/(M*N);

PSNR = 10*log10(255*255/MSE);

 fprintf('\nMSE: %7.2f ', MSE);

 fprintf('\nPSNR: %9.7f dB', PSNR);
@Jan Simon, could you please check my code? Cause I'm having matrix dimension not agree error