Cannot find files or folders matching: 'recycle10​1\project\​aluminiumc​an'.

clc
clear all; close all;
outputFolder=fullfile('recycle101');
rootFolder=fullfile(outputFolder,'project');
categories={'aluminiumcan','petbottles','drinkcartonbox'};
imds=imageDatastore(fullfile(rootFolder,categories),'LabelSource','foldernames');
tbl=countEachLabel(imds)

Error:

>> imds=imageDatastore(fullfile(rootFolder,categories),'LabelSource','foldernames');

tbl=countEachLabel(imds)

Error using imageDatastore

Cannot find files or folders matching: 'recycle101\project\aluminiumcan'.

[Walter Roberson]

As outside observers, we have no reason to expect that there is a folder recycle101 in your current directory; or that if it exists that it has a folder named project; or if that folder exists that it has a folder named aluminiumcan

For example perhaps the folder name is aluminumcan (US spelling)

[Tan]

i save my dataset as below structure:

recycle101

-project

-aluminiumcan

-petbottle

-drinkcartonbox

[Tan]

but my MATLAB install at hard-disk and the dataset is saved at local disk.

Does it will affect and get the error as below?

Error using imageDatastore

Cannot find files or folders matching: 'recycle101\project\aluminiumcan'.

[Walter Roberson]

what does this report?

parts = {'recycle101', 'project', 'aluminiumcan'};
if exist(parts{1}, 'dir')
    fprintf('folder "%s" exists!\n', parts{1});
    if exists(fullfile(parts{1:2}), 'dir')
        fprintf('folder "%s" exists!\n', fullfile(parts{1:2}));
        if exists(fulfile(parts{1:3}), 'dir')
            fprintf('folder "%s" exists!\n', fullfile(parts{1:3}));
        else
            fprintf('but could not find subfolder "%s"\n', parts{3});
        end
    else
        fprintf('but could not find subfolder "%s"\n', parts{2});
    end
else
    fprintf('folder "%s" does not exist in current directory!\n', parts{1});
end

Answer 1

[Neeraj]

Hello,

The error clearly states that 'imageDatastore' is unable to find the files/folders located at location 'recycle101\project\aluminiumcan'

Please ensure that the relative path: 'recycle101\project\aluminiumcan' exists.

If it does exist, then try to pass the absolute path to the 'imageDatastore' which might look similar to: 'C:\Users\OneDrive\Desktop\recycle101\project\aluminiumcan'

If the absolute path works without any error, then you only need to modify the 'outputFolder' variable as shown below:

clc
clear all; close all;
outputFolder=fullfile('C:\Users\OneDrive\Desktop\recycle101');
rootFolder=fullfile(outputFolder,'project');
categories={'aluminiumcan','petbottles','drinkcartonbox'};
imds=imageDatastore(fullfile(rootFolder,categories),'LabelSource','foldernames');
tbl=countEachLabel(imds)