25/25 [==============================] - 7s 279ms/step - total_loss: 1.0977 - illumination_smoothness_loss: 0.0182 - spatial_constancy_loss: 0.2987 - color_constancy_loss: 0.0780 - exposure_loss: 0.7028 - val_total_loss: 1.3601 - val_illumination_smoothness_loss: 0.0226 - val_spatial_constancy_loss: 0.2623 - val_color_constancy_loss: 0.0431 - val_exposure_loss: 1.0321