25/25 [==============================] - 7s 278ms/step - total_loss: 1.0897 - illumination_smoothness_loss: 0.0116 - spatial_constancy_loss: 0.3002 - color_constancy_loss: 0.0783 - exposure_loss: 0.6996 - val_total_loss: 1.3516 - val_illumination_smoothness_loss: 0.0159 - val_spatial_constancy_loss: 0.2635 - val_color_constancy_loss: 0.0436 - val_exposure_loss: 1.0286