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Question on imageDataStore syntax and parameters

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Kingsley Chan
Kingsley Chan 2017 年 7 月 18 日
コメント済み: Sarhan 2020 年 4 月 11 日
Hi all, I face some problems with imageDataStore function. Can anyone please explain the syntax or parameter involved?
First example:
imds = imageDatastore(fullfile(matlabroot,'toolbox','matlab'),...
'IncludeSubfolders',true,'FileExtensions','.tif','LabelSource','foldernames')
What means by 'true', what's the effect of 'File Extensions' selected, and what's 'LabelSources' and 'foldernames' refer to?
Second example:
outputFolder = fullfile(tempdir, 'caltech101');
rootFolder = fullfile(outputFolder, '101_ObjectCategories');
categories = {'airplanes', 'ferry', 'laptop'};
imds = imageDatastore(fullfile(rootFolder, categories), 'LabelSource', 'foldernames');
Is there any relationships between 'LabelSources' and 'foldernames' with 'rootFolder' and 'categories'?
Thank you in advanced.
  1 件のコメント
Sarhan
Sarhan 2020 年 4 月 11 日
Hi Every body: ImageDatastore does not read all the subfolders in the root directory 'junk', it only reads the first subdirectory in 'junk' Using the statement
>> imdsx=imageDatastore(fullfile('C:\Users', 'sarhan', 'Desktop', 'junk'),'IncludeSubfolders' , 1, 'LabelSource','foldernames')
Any answers would be appreciated.

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採用された回答

Grzegorz Knor
Grzegorz Knor 2017 年 7 月 18 日
編集済み: Grzegorz Knor 2017 年 7 月 18 日
All 'Name-Value Pair' arguments are described in the documentation: https://uk.mathworks.com/help/matlab/ref/imagedatastore.html#namevaluepairarguments
For example: 'IncludeSubfolders' - Subfolder inclusion flag, specified as the comma-separated pair consisting of 'IncludeSubfolders' and true, false.
  2 件のコメント
Kingsley Chan
Kingsley Chan 2017 年 7 月 18 日
Thank you! Didnt't see it just now, haha
Rik
Rik 2019 年 6 月 18 日

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