How to randomize image display?

Hello,

I was trying to load images from a folder and display them randomly. I did my best to write the codes but when I run the program it only prints "166" on the screen for non-stop 5 minutes. This is my first programming and I need your help.

The function code I wrote for loading images was: I appreciate any comments. Thank you.

function words = words_load(N)

    D=dir('.../matlab/BMP/*.bmp');
    a={D.name};
    b=numel(a);
    c=[randperm(b)];

    for i=1:b
        filenumber=c(:,b)
        file=sprintf('w_%02d.bmp',filenumber)
        img=imread(file)
    end

Answer 1

[Image Analyst]

Try it like this instead:

allFiles = dir('*.bmp');
baseFileNames = {allFiles.name}
numberOfFiles = length(baseFileNames)
randomOrder=[randperm(numberOfFiles)]

for k = 1 : numberOfFiles
  filenumber = randomOrder(k)
  fullFileName = fullfile(pwd, baseFileNames{filenumber})
  % Display the image in the current axes.
%   img = imread(fullFileName)
%   imshow(img);
  
  % Prompt user to continue or quit.
  message = sprintf('Now showing %s', fullFileName);
  promptMessage = sprintf('%s\nDo you want to Continue processing,\nor Cancel to abort processing?', message);
  titleBarCaption = 'Continue?';
  button = questdlg(promptMessage, titleBarCaption, 'Continue', 'Cancel', 'Continue');
  if strcmpi(button, 'Cancel')
    break;
  end
end

Answer 2

[Jan]

D = dir('.../matlab/BMP/*.bmp');
FileList = {D.name};
Index    = randperm(length(a));

for ii = Index
   img = imread(FileList{ii});
   % what should happen with the image now?
   image(img);
   pause(0.5);
end

Answer 3

[Thorsten]

myimagedir = '.../matlab/BMP/*.bmp';

d = dir(myimagedir);

for i = randperm(numel(d)) % show all images in random order

    imshow(d(i).name) 

    pause(2) % wait for 2 s until the next image is shown

end