How to select a folder at runtime?

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I have five folder. Each folder contains nearly 30 images. My programme is capable to read and execute all the images simultaneously from a specific folder by executing following code
srcFiles = dir('F:\Input_image\*.jpg');
for i = 1 : length(srcFiles)
filename = strcat('F:\Input_image\',srcFiles(i).name);
I{i} = imread(filename);
end
Each time when I execute all the folder I have to change the path, manually. Is it possible to change the path by executing the programme.

Accepted Answer

Image Analyst
Image Analyst on 2 Sep 2015
Try uigetdir().
  2 Comments
Jhilam Mukherjee
Jhilam Mukherjee on 2 Sep 2015
Thanks. I can select the folder at runtime. I replace the filepath in dir() command but when for loop is executed it shows length(srcFiles) is zero. Is any additional command has to be added in programme.
Image Analyst
Image Analyst on 2 Sep 2015
Try this:
% Have user browse for a file, from a specified "starting folder."
% For convenience in browsing, set a starting folder from which to browse.
startingFolder = 'C:\Program Files\MATLAB';
if ~exist(startingFolder, 'dir')
% If that folder doesn't exist, just start in the current folder.
startingFolder = pwd;
end
% Get the name of the folder that the user wants to use.
folder = uigetdir(startingFolder, 'Select a folder');
if folder == 0
% User clicked the Cancel button.
return;
end
filePattern = fullfile(folder, '*.jpg')
jpegFiles = dir(filePattern);
for k = 1:length(jpegFiles)
baseFileName = jpegFiles(k).name;
fullFileName = fullfile(folder, baseFileName);
fprintf(1, 'Now reading %s\n', fullFileName);
% Read in image and display it.
imageArray = imread(fullFileName);
imshow(imageArray); % Display image.
drawnow; % Force display to update immediately.
end

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