25/25 [==============================] - 7s 269ms/step - total_loss: 1.1056 - illumination_smoothness_loss: 0.0252 - spatial_constancy_loss: 0.2967 - color_constancy_loss: 0.0777 - exposure_loss: 0.7061 - val_total_loss: 1.3672 - val_illumination_smoothness_loss: 0.0277 - val_spatial_constancy_loss: 0.2597 - val_color_constancy_loss: 0.0426 - val_exposure_loss: 1.0372