I want to use a folder of images in matlab ..I tried but it comes to error..pls help me to point out error

This is the program that I have tested:

% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile('C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg'); 
imagefile = dir(filePattern);
nfiles=length(imagefile)
for k = 1 : nfiles
  imageName = imagefile(k).name;
  fullFileName = fullfile('C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg', imageName);
  fprintf(1, 'Now reading %s\n', fullFileName)
  % Now do whatever you want with this file name,
  % such as reading it in as an image array with imread()
  imageArray = imread('C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg');
  imshow(imageArray);  % Display image.
  drawnow; % Force display to update immediately.
end

and error comes as following:

nfiles =

      70

Now reading C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg\im.jpg
??? Error using ==> imread at 357
Can't open file "C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg"
for reading;
you may not have read permission.

Error in ==> see at 11
  imageArray = imread('C:\Program
  Files\MATLAB\R2009a\bin\fundus\*.jpg');

[Brendan Hamm]

Please format your code using the Code{} button.

[Rik]

Why don't you use the debugger to go through your code to execute it line by line. The code you have in your post is very difficult to read with this lay-out, but I expect there is something wrong with how you generate the files names to be feed to imread, which is why it surprises me it doesn't error at n=1.

Answer 1

[Tim Berk]

% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile('*.eps');
imagefile = dir(filePattern);
nfiles=length(imagefile);
for k = 1 : nfiles
    imageName = imagefile(k).name;
    fullFileName = fullfile('C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg', imageName);
    fprintf(1, 'Now reading %s\n', fullFileName)
    % Now do whatever you want with this file name,
    % such as reading it in as an image array with imread()
    imageArray = imread('C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg');
    imshow(imageArray);    % Display image.
    drawnow;     % Force display to update immediately.
end

If you would go through it line-by-line, you would see that

fullFileName = 'C:\Program Files\MATLAB\R2009a\bin\fundus\*.jpg\im.jpg'

This is because you already have the file name in imageName and are combining this with the ...\*.jpg

Just change this line to

fullFileName = fullfile('C:\Program Files\MATLAB\R2009a\bin\fundus\', imageName);

To get the proper file name.

Now you need to actually use this name, i.e.

imageArray = imread(fullFileName);

[seema dhotre]

Thank you sir..!It is working ..