25/25 [==============================] - 7s 278ms/step - total_loss: 1.1038 - illumination_smoothness_loss: 0.0237 - spatial_constancy_loss: 0.2968 - color_constancy_loss: 0.0778 - exposure_loss: 0.7054 - val_total_loss: 1.3657 - val_illumination_smoothness_loss: 0.0273 - val_spatial_constancy_loss: 0.2617 - val_color_constancy_loss: 0.0431 - val_exposure_loss: 1.0335