25/25 [==============================] - 7s 264ms/step - total_loss: 2.8823 - illumination_smoothness_loss: 0.1141 - spatial_constancy_loss: 8.0172e-04 - color_constancy_loss: 0.0039 - exposure_loss: 2.7635 - val_total_loss: 2.9422 - val_illumination_smoothness_loss: 0.0951 - val_spatial_constancy_loss: 8.5813e-04 - val_color_constancy_loss: 6.1538e-04 - val_exposure_loss: 2.8456