25/25 [==============================] - 7s 268ms/step - total_loss: 1.0886 - illumination_smoothness_loss: 0.0110 - spatial_constancy_loss: 0.3000 - color_constancy_loss: 0.0781 - exposure_loss: 0.6994 - val_total_loss: 1.3511 - val_illumination_smoothness_loss: 0.0163 - val_spatial_constancy_loss: 0.2644 - val_color_constancy_loss: 0.0438 - val_exposure_loss: 1.0266