25/25 [==============================] - 7s 268ms/step - total_loss: 1.0953 - illumination_smoothness_loss: 0.0159 - spatial_constancy_loss: 0.2992 - color_constancy_loss: 0.0782 - exposure_loss: 0.7020 - val_total_loss: 1.3579 - val_illumination_smoothness_loss: 0.0213 - val_spatial_constancy_loss: 0.2637 - val_color_constancy_loss: 0.0436 - val_exposure_loss: 1.0293