Read All Images in Directory

Question

Abed Nego Lubis 2018-4-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/396955-read-all-images-in-directory

编辑： Ameer Hamza 2018-4-24

Hello, i want to check noise level in image. The original code is only read 1 file and check the noise level of the image. Assume that i have more than one images and i want to execute all in one time. How to read all the image? I have tried this but it show the error below.

imagefiles = dir('Test\*.jpg');      
nfiles = length(imagefiles);    % Number of files found
for ii = 1 : nfiles
%     diary('output2.txt');
%     diary on;
    currentfilename = imagefiles(ii).name;
    currentimage = imread(currentfilename);
    images{ii} = currentimage;
    img = double(imread(currentfilename));
    nlevel = NoiseLevel(img);
    fprintf('noise level: %f \n\n', nlevel);
end
% diary off;

The error is shown like below :

Thank you...

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Matt Macaulay 2018-4-24

在 MATLAB Online 中打开

The only thing that looks off is that a file named 'IMG_3700.JPG' is returned from a search from

   dir('Test\*.jpg').

'Test' is not in the filename of 'IMG_3700.JPG'. Clear the workspace?

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Answer 1

Ameer Hamza 2018-4-24

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/396955-read-all-images-in-directory#answer_316825

编辑：Ameer Hamza 2018-4-24

在 MATLAB Online 中打开

The mistakes lies in currentimage = imread(currentfilename);. Here currentfilename just contain file name IMG_3700.JPG, not the complete path Test\IMG_3700.JPG. You need to specify the complete path as

currentimage = imread(['Test\' currentfilename]);