25/25 [==============================] - 7s 278ms/step - total_loss: 1.0876 - illumination_smoothness_loss: 0.0098 - spatial_constancy_loss: 0.3005 - color_constancy_loss: 0.0781 - exposure_loss: 0.6992 - val_total_loss: 1.3471 - val_illumination_smoothness_loss: 0.0120 - val_spatial_constancy_loss: 0.2633 - val_color_constancy_loss: 0.0439 - val_exposure_loss: 1.0279