25/25 [==============================] - 7s 278ms/step - total_loss: 1.0918 - illumination_smoothness_loss: 0.0128 - spatial_constancy_loss: 0.2985 - color_constancy_loss: 0.0778 - exposure_loss: 0.7028 - val_total_loss: 1.3550 - val_illumination_smoothness_loss: 0.0194 - val_spatial_constancy_loss: 0.2645 - val_color_constancy_loss: 0.0439 - val_exposure_loss: 1.0273