title: Why does my SVM using HOG features always predict the same class?
body: <p>I am trying to train SVM to predict the traffic sign, but I always get the same predict result for difference input image.</p>
  
  <p>Can anyone explain why for me?</p>
  
  <p>Here is my code:</p>
  
  <p><a href="http://pastebin.com/6y2MgTb8" rel="nofollow">http://pastebin.com/6y2MgTb8</a></p>
  
  <p>I also print and compare the HOG value of test image and training image, it is the same, but why the predict result always are the same value.</p>