25/25 [==============================] - 7s 268ms/step - total_loss: 1.0935 - illumination_smoothness_loss: 0.0146 - spatial_constancy_loss: 0.2994 - color_constancy_loss: 0.0782 - exposure_loss: 0.7014 - val_total_loss: 1.3565 - val_illumination_smoothness_loss: 0.0200 - val_spatial_constancy_loss: 0.2632 - val_color_constancy_loss: 0.0433 - val_exposure_loss: 1.0300