Hi, I am using theano to define a loss function for the training of CNN, like Loss = T.sqrt(Gx**2+Gy**2). My prediction G is a M*N matrix and Gx/Gy are a horizontal/vertical gradient of the matrix prediction G, they have the same size M*N. Gx[i,j] = G[i+1,j]-G[i,j], Gy[i,j] = G[i,j+1]-G[i,j], I quite new to theano, how can I solve this fastly, thanks!
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