25/25 [==============================] - 7s 279ms/step - total_loss: 1.0904 - illumination_smoothness_loss: 0.0122 - spatial_constancy_loss: 0.2999 - color_constancy_loss: 0.0782 - exposure_loss: 0.7001 - val_total_loss: 1.3528 - val_illumination_smoothness_loss: 0.0178 - val_spatial_constancy_loss: 0.2647 - val_color_constancy_loss: 0.0439 - val_exposure_loss: 1.0264