25/25 [==============================] - 7s 279ms/step - total_loss: 1.1094 - illumination_smoothness_loss: 0.0287 - spatial_constancy_loss: 0.2955 - color_constancy_loss: 0.0775 - exposure_loss: 0.7076 - val_total_loss: 1.3720 - val_illumination_smoothness_loss: 0.0329 - val_spatial_constancy_loss: 0.2605 - val_color_constancy_loss: 0.0425 - val_exposure_loss: 1.0361