25/25 [==============================] - 7s 278ms/step - total_loss: 1.0875 - illumination_smoothness_loss: 0.0104 - spatial_constancy_loss: 0.3003 - color_constancy_loss: 0.0781 - exposure_loss: 0.6987 - val_total_loss: 1.3485 - val_illumination_smoothness_loss: 0.0140 - val_spatial_constancy_loss: 0.2641 - val_color_constancy_loss: 0.0440 - val_exposure_loss: 1.0264