25/25 [==============================] - 7s 269ms/step - total_loss: 1.0900 - illumination_smoothness_loss: 0.0120 - spatial_constancy_loss: 0.2998 - color_constancy_loss: 0.0781 - exposure_loss: 0.7001 - val_total_loss: 1.3528 - val_illumination_smoothness_loss: 0.0174 - val_spatial_constancy_loss: 0.2641 - val_color_constancy_loss: 0.0437 - val_exposure_loss: 1.0277