25/25 [==============================] - 7s 278ms/step - total_loss: 1.0930 - illumination_smoothness_loss: 0.0141 - spatial_constancy_loss: 0.2992 - color_constancy_loss: 0.0781 - exposure_loss: 0.7016 - val_total_loss: 1.3565 - val_illumination_smoothness_loss: 0.0208 - val_spatial_constancy_loss: 0.2652 - val_color_constancy_loss: 0.0441 - val_exposure_loss: 1.0265