25/25 [==============================] - 7s 274ms/step - total_loss: 2.7997 - illumination_smoothness_loss: 0.1031 - spatial_constancy_loss: 0.0016 - color_constancy_loss: 0.0047 - exposure_loss: 2.6903 - val_total_loss: 2.8666 - val_illumination_smoothness_loss: 0.1034 - val_spatial_constancy_loss: 0.0019 - val_color_constancy_loss: 8.0413e-04 - val_exposure_loss: 2.7604