ixels)



Each column of the returned matrix is a row of log probabilities of the complete probability
transition matrix.
When non cumulative, returns self.num_classes - 1 rows because the initial latent pixel cannot be
masked.
Where:

q_n is the probability distribution for the forward process of the nth latent pixel.
C_0 is a class of a latent pixel embedding
C_k is the class of the masked latent pixel

non-cumulative result (omitting logarit