How can I get features by extracthogfeatures function?

2017 6 4
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更新时间：2017 6 9
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I used following code to extract HOG feature from an image, but it returns nothing.
[featureVector,hogVisualization] = extractHOGFeatures(I,'BlockSize',[16 16],'BlockOverlap',[8 8]);
The image size is 32*32 and the featureVector is an empty matrix.
The image takes from mouth region. </matlabcentral/answers/uploaded_files/79686/122.jpg>

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jenny
jenny 2017-6-9

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If I understand what you writed the Number of overlapping cells between adjacent blocks is the half (50%) and the blolck size is [16,16] and this parametrs are the default parametrs so you can delete this parametrs from the syntax.

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