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I am implementing Bag-of-Visual-Words. Part of that is SIFT, it has a task of extracting features and outputs a vector. Afterwards, the vector are clustered and made into a histogram. Histograms are then used to train for a model.

I want to train and test 100 image. Can features (vector) be saved into a separate (and what) file so that extraction steps are not repeated always?

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    $\begingroup$ An extracted features vector is just data... you can save it to a csv or any other format $\endgroup$ – Itamar Mushkin Aug 3 at 8:39

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