25/25 [==============================] - 7s 272ms/step - total_loss: 3.0244 - illumination_smoothness_loss: 0.1915 - spatial_constancy_loss: 3.4287e-04 - color_constancy_loss: 0.0033 - exposure_loss: 2.8293 - val_total_loss: 3.0512 - val_illumination_smoothness_loss: 0.1415 - val_spatial_constancy_loss: 3.5449e-04 - val_color_constancy_loss: 5.0079e-04 - val_exposure_loss: 2.9088