MATLAB: How to convert SURFpoints to Double

Question

I would like to extract the surf features and train it using a Neural Network. The extracted features are in the type of "SURFpoints" and the Neural Network accepts the data type of "Double. Is there anyway to convert SURFpoints to double? or Is there anyway to input SURFpoints to neural network?

Answer 1

Extract the Location property of the SURFpoints

http://www.mathworks.com/help/vision/ref/surfpoints-class.html