25/25 [==============================] - 7s 271ms/step - total_loss: 3.4913 - illumination_smoothness_loss: 0.5945 - spatial_constancy_loss: 7.2733e-05 - color_constancy_loss: 0.0029 - exposure_loss: 2.8939 - val_total_loss: 3.3690 - val_illumination_smoothness_loss: 0.4014 - val_spatial_constancy_loss: 8.7945e-05 - val_color_constancy_loss: 4.3541e-04 - val_exposure_loss: 2.9671