title: How to reshape a blob in Caffe?
body: <p>How to reshape a blob of the shape <code>N x C x H x W</code> to <code>N x 1 x (C*H) x W</code> in Caffe?</p>
  
  <p>I want to make a convolution layer the weights of which are identical between channels.</p>
  
  <p>One way I come up with is to reshape the bottom blob of the shape <code>N x C x H x W</code> to <code>N x 1 x (C*H) x W</code> and place a convolution layer upon it. But I just don't know how to reshape a blob.</p>
  
  <p>Please help me out, thank you.</p>