25/25 [==============================] - 7s 277ms/step - total_loss: 1.0878 - illumination_smoothness_loss: 0.0105 - spatial_constancy_loss: 0.2994 - color_constancy_loss: 0.0780 - exposure_loss: 0.6999 - val_total_loss: 1.3497 - val_illumination_smoothness_loss: 0.0150 - val_spatial_constancy_loss: 0.2643 - val_color_constancy_loss: 0.0440 - val_exposure_loss: 1.0263