25/25 [==============================] - 7s 278ms/step - total_loss: 1.0884 - illumination_smoothness_loss: 0.0108 - spatial_constancy_loss: 0.3007 - color_constancy_loss: 0.0782 - exposure_loss: 0.6987 - val_total_loss: 1.3496 - val_illumination_smoothness_loss: 0.0148 - val_spatial_constancy_loss: 0.2642 - val_color_constancy_loss: 0.0441 - val_exposure_loss: 1.0265