25/25 [==============================] - 7s 279ms/step - total_loss: 1.1283 - illumination_smoothness_loss: 0.0465 - spatial_constancy_loss: 0.2916 - color_constancy_loss: 0.0768 - exposure_loss: 0.7133 - val_total_loss: 1.3906 - val_illumination_smoothness_loss: 0.0473 - val_spatial_constancy_loss: 0.2538 - val_color_constancy_loss: 0.0411 - val_exposure_loss: 1.0485