how do i read a folder database into matlab

Question

basma alshaibah 2019-4-5

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/454636-how-do-i-read-a-folder-database-into-matlab

编辑： Rik 2019-4-9

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)');

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Answer 1

Rik 2019-4-5

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https://ww2.mathworks.cn/matlabcentral/answers/454636-how-do-i-read-a-folder-database-into-matlab#answer_369239

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.

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basma alshaibah 2019-4-5

编辑：Rik 2019-4-9

在 MATLAB Online 中打开

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