25/25 [==============================] - 7s 278ms/step - total_loss: 1.0986 - illumination_smoothness_loss: 0.0190 - spatial_constancy_loss: 0.2971 - color_constancy_loss: 0.0777 - exposure_loss: 0.7048 - val_total_loss: 1.3615 - val_illumination_smoothness_loss: 0.0238 - val_spatial_constancy_loss: 0.2621 - val_color_constancy_loss: 0.0430 - val_exposure_loss: 1.0327