25/25 [==============================] - 7s 278ms/step - total_loss: 1.1660 - illumination_smoothness_loss: 0.0825 - spatial_constancy_loss: 0.2841 - color_constancy_loss: 0.0757 - exposure_loss: 0.7238 - val_total_loss: 1.4307 - val_illumination_smoothness_loss: 0.0840 - val_spatial_constancy_loss: 0.2500 - val_color_constancy_loss: 0.0406 - val_exposure_loss: 1.0561