how can i store file path in string?

like this

f=strcat('E:\OneDrive\matlab\FYP\MMU Iris Database\MMU Iris Database\',num2str(c1),num2str(c2),num2str(c3),'\1\*.bmp')
img=dir(f);

img is not reading path

thanks in advance

[Akira Agata]

What is the size of img after running your code? If .bmp files are stored in your directory, img will be N-by-1 struct array (N is a total number of .bmp files in your directory).

[Jan]

A nicer version of your code:

f = ['E:\OneDrive\matlab\FYP\MMU Iris Database\', ...
     'MMU Iris Database\', sprintf('%d%d%d', c1, c2, c3), ...
     '\1\*.bmp')
img = dir(f);

Now please explain, what "img is not reading path" means. What happens, if you run the code and what do you want instead?

[Walter Roberson]

I notice you are using OneDrive. Are you using Windows 10? Because OneDrive on Windows 10 has some glitch in interacting with MATLAB so that "on-demand" files are not available.