25/25 [==============================] - 7s 272ms/step - total_loss: 2.9666 - illumination_smoothness_loss: 0.1531 - spatial_constancy_loss: 4.5557e-04 - color_constancy_loss: 0.0035 - exposure_loss: 2.8096 - val_total_loss: 3.0084 - val_illumination_smoothness_loss: 0.1172 - val_spatial_constancy_loss: 4.7605e-04 - val_color_constancy_loss: 5.3119e-04 - val_exposure_loss: 2.8902