25/25 [==============================] - 7s 269ms/step - total_loss: 1.1079 - illumination_smoothness_loss: 0.0276 - spatial_constancy_loss: 0.2955 - color_constancy_loss: 0.0777 - exposure_loss: 0.7072 - val_total_loss: 1.3707 - val_illumination_smoothness_loss: 0.0316 - val_spatial_constancy_loss: 0.2606 - val_color_constancy_loss: 0.0426 - val_exposure_loss: 1.0359