Figure 7From: An augmented Lagrangian multi-scale dictionary learning algorithmThe dictionary learning process with a random matrix as initialization. From left to right: the first row: the learned dictionaries generated by ALM-DL after 2, 6, 11, 17, 20 iterations; the second row: the learned dictionaries generated by K-SVD after 1, 3, 6, 8, 10 iterations.Back to article page