how do i read a folder database into matlab

i have a database as a folder and in that folder there are sub folders each with a number of photos of a person walking photographed from different angles, to be used for gait recognition.

how do i read that folder into matlab?

im new a matlab and i have this code to read an image but i want it to be used for reading a folder, is there anyway to do that ?

[fname, path]=uigetfile('.png','Open an Image as input for training');
fname=strcat(path, fname);
im=imread(fname);
im=im2bw(im);
imshow(im);
title('Input Image');
c=input('Enter the Class(Number from 1-12)');

Answer 1

[Rik]

Use uigetdir to ask the user for a folder, then use dir to get the list of files inside that folder, then use a for loop to load the images in a loop.

[basma alshaibah]

i used uigetdir and it worked but dir didn't. am i using it correctly?

selpath = uigetdir('C:\Users\Basma\Desktop','open a file for input')
dir selpath

and can you please show me how to iterate over the images in each subfolder?

because i tried a nested for loop but it didn't work

files = uigetdir('C:\Users\Basma\Desktop','open a file for input')
for i = 1 : 1: numel(files)
    for j = 1 : 1 : numel(files(i))
        x = imread(i,j);
    end   
end

thank you in advance

[Rik]

Read the documentation for the two functions. Matlab documentation is very good and contains several examples.

Answer 2

[TED jenson]

hey have you checked your problem on youtube?

https://www.google.com/search?q=how+do+i+read+a+folder+database+into+matlab&source=lnms&tbm=vid&sa=X&ved=0ahUKEwi85-2mjLnhAhWW4HMBHf0sBlwQ_AUIDigB&biw=1280&bih=610&dpr=1.5

refer the above link. hope it clears all your doubt.