25/25 [==============================] - 7s 277ms/step - total_loss: 1.0879 - illumination_smoothness_loss: 0.0104 - spatial_constancy_loss: 0.3005 - color_constancy_loss: 0.0782 - exposure_loss: 0.6988 - val_total_loss: 1.3486 - val_illumination_smoothness_loss: 0.0140 - val_spatial_constancy_loss: 0.2642 - val_color_constancy_loss: 0.0443 - val_exposure_loss: 1.0260