Undefined function 'imageDataStore' for input arguments of type 'cell'.

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Hazel Sialongo
Hazel Sialongo 2016-9-28
评论： Walter Roberson 2018-10-16
Code:
outputFolder = fullfile('C:\Users\JIARA\Documents\MainGUI');
rootFolder = fullfile(outputFolder, 'Eye_Images');
categories = {'Normal','Diabetes Detected'};
imds = imageDataStore(fullfile(rootFolder, categories), 'LabelSource', 'foldernames');
tbl = countEachLabel(imds);
[trainingSet,testSet] = splitEachLabel(imds,0.3,'randomize');
bag = bagOfFeatures(trainingSet);
categoryClassifier = trainImageCategoryClassifier(trainingSet,bag);
confMatrix = evaluate(categoryClassifier,testSet)

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mizuki
mizuki 2016-10-2
imageDataStore is introduced in R2016a. If you are using R2015b or before, you cannot use it and you get the result like "undefined function." If you are using R2014b or later version, use datastore function instead with setting Type option as 'image.'
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Thulasi Krishna
Thulasi Krishna 2018-4-3
编辑：Walter Roberson 2018-10-16
imds = datastore(fullfile(rootFolder, categories), 'LabelSource', 'foldernames');
Undefined function 'datastore' for input arguments of type 'cell'.
What to do with this?
Walter Roberson
Walter Roberson 2018-10-16
The class imageDataStore was introduced in R2015b, but the function required R2016a.

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