25/25 [==============================] - 7s 267ms/step - total_loss: 1.2439 - illumination_smoothness_loss: 0.1559 - spatial_constancy_loss: 0.2706 - color_constancy_loss: 0.0730 - exposure_loss: 0.7443 - val_total_loss: 1.4994 - val_illumination_smoothness_loss: 0.1423 - val_spatial_constancy_loss: 0.2359 - val_color_constancy_loss: 0.0363 - val_exposure_loss: 1.0850