25/25 [==============================] - 7s 278ms/step - total_loss: 1.1257 - illumination_smoothness_loss: 0.0441 - spatial_constancy_loss: 0.2907 - color_constancy_loss: 0.0768 - exposure_loss: 0.7141 - val_total_loss: 1.3889 - val_illumination_smoothness_loss: 0.0477 - val_spatial_constancy_loss: 0.2577 - val_color_constancy_loss: 0.0419 - val_exposure_loss: 1.0416