25/25 [==============================] - 7s 270ms/step - total_loss: 3.7458 - illumination_smoothness_loss: 0.8320 - spatial_constancy_loss: 2.9476e-05 - color_constancy_loss: 0.0028 - exposure_loss: 2.9110 - val_total_loss: 3.5389 - val_illumination_smoothness_loss: 0.5565 - val_spatial_constancy_loss: 4.3614e-05 - val_color_constancy_loss: 4.4507e-04 - val_exposure_loss: 2.9818