HOG features for Image Data store

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sara khaled
sara khaled 2018-2-25
I typed the same code of digit classification i change the datastore only by another images but their sizes are not equal, Is that problem ? numImages = numel(trainingSet.Files); trainingFeatures = zeros(numImages, hogFeatureSize, 'single');
for i = 1:numImages img = readimage(trainingSet, i);
img = rgb2gray(img);
% Apply pre-processing steps
img = imbinarize(img);
trainingFeatures(i, :) = extractHOGFeatures(img, 'CellSize', cellSize);
end
% Get labels for each image. trainingLabels = trainingSet.Labels;
Subscripted assignment dimension mismatch.
Error in Untitled3 (line 119) trainingFeatures(i, :) = extractHOGFeatures(img, 'CellSize', cellSize);

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