image processing - Error in helperExtractHOGFeaturesFromImageSet (line 10) -

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hi working on hog.

this code:

   % labels each image.  traininglabels = trainingset.labels;  % fitcecoc uses svm learners , 'one-vs-one' encoding scheme.  classifier = fitcecoc(trainingfeatures, traininglabels);  % extract hog features test set.  procedure similar % shown earlier , encapsulated helper function brevity.  [testfeatures, testlabels] = helperextracthogfeaturesfromimageset(testset, hogfeaturesize, cellsize);  % make class predictions using test features.  predictedlabels = predict(classifier, testfeatures);

the error occur on helperextracthogfeaturesfromimageset function please give me solution. thanks





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