title: What is the difference between object detection and object classification?
body: <p>These two tasks are popular applications of convolutional neural networks. However, I don't understand the difference. According to one Caffe tutorial, it seems that the task of object detection is harder. </p>
  
  <p>Does object detection define where the object is located in an image, or reveal how many of the object is in the picture...? </p>