MATLAB: Reading image files-batch

imageImage Processing Toolboxread

Hi,

I am trying to read image files from a folder (not Matlab working folder) but it does not work

Code: files = dir('C:\Users\ell\Desktop\segon\seg_array\Tv*.png') rgbl = imread('C:\Users\ell\Desktop\segn\seg_array\', files(1).name);

Can someone please tell me what is the problem.

Thanks

Best Answer

Please see the FAQ http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F for several ways. They'll have lines like this

folder = ''C:\Users\ell\Desktop\segon\seg_array';
filePattern = fullfile(folder, 'Tv*.png');
fileNames = dir(filePattern);

In the loop:

fullFileName = fullfile(folder, fileNames(k).name);
rgbImage = imread(fullFileName);

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directory = 'C:\Datasets\nyu\train\';
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depth_dir = fullfile(directory, 'depth');
image_rgb_info  = dir( fullfile(img_dir, '*.jpg'));
image_rgb_filenames = fullfile(img_dir, {image_rgb_info.name} );
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You can define res as matrix and fill its different columns

folder = fullfile('C:','Users','muhammad','Desktop','Velocity');
files = dir( fullfile(folder, '*.csv') );
for ii = 1:length(files)
     data = readmatrix(fullfile(files(ii).folder,files(ii).name), 'NumHeaderLines', 1)
     res(:,ii) = data(:,3); 
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Following version is more efficient but requires a bit of code

folder = fullfile('C:','Users','muhammad','Desktop','Velocity');
files = dir( fullfile(folder, '*.csv') );
res = cell(size(files));
for ii = 1:length(files)
     data = readmatrix(fullfile(files(ii).folder,files(ii).name), 'NumHeaderLines', 1)
     res{ii} = data(:,3); 
end
res = [res{:}];

Best Answer

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