25/25 [==============================] - 7s 267ms/step - total_loss: 1.2646 - illumination_smoothness_loss: 0.1724 - spatial_constancy_loss: 0.2605 - color_constancy_loss: 0.0720 - exposure_loss: 0.7597 - val_total_loss: 1.5153 - val_illumination_smoothness_loss: 0.1533 - val_spatial_constancy_loss: 0.2295 - val_color_constancy_loss: 0.0343 - val_exposure_loss: 1.0981