Hello im doing my project in offline signature verification system, plz tell me how to store extracted SURF features?

function Feature_Extraction2

%Extract surf features:

%Read image. 
I = imread('C:\Users\LENOVO\Desktop\MATLAB\Database2\Preprocessed\forged\1\1.1.png');
 
 %Find and extract features.
 points = detectSURFFeatures(I); 
 
  %Display and plot ten strongest SURF features.
 
    strongest = points.selectStrongest(100);
    imshow(I); hold on;
    plot(strongest);
  %Display [x y] coordinates for the strongest points on command line.
  strongest.Location
  
end