25/25 [==============================] - 7s 279ms/step - total_loss: 1.1393 - illumination_smoothness_loss: 0.0575 - spatial_constancy_loss: 0.2891 - color_constancy_loss: 0.0766 - exposure_loss: 0.7161 - val_total_loss: 1.4016 - val_illumination_smoothness_loss: 0.0574 - val_spatial_constancy_loss: 0.2529 - val_color_constancy_loss: 0.0408 - val_exposure_loss: 1.0505