25/25 [==============================] - 7s 269ms/step - total_loss: 1.1020 - illumination_smoothness_loss: 0.0220 - spatial_constancy_loss: 0.2979 - color_constancy_loss: 0.0779 - exposure_loss: 0.7042 - val_total_loss: 1.3635 - val_illumination_smoothness_loss: 0.0234 - val_spatial_constancy_loss: 0.2579 - val_color_constancy_loss: 0.0422 - val_exposure_loss: 1.0400