25/25 [==============================] - 7s 278ms/step - total_loss: 1.0876 - illumination_smoothness_loss: 0.0103 - spatial_constancy_loss: 0.3002 - color_constancy_loss: 0.0782 - exposure_loss: 0.6989 - val_total_loss: 1.3493 - val_illumination_smoothness_loss: 0.0147 - val_spatial_constancy_loss: 0.2642 - val_color_constancy_loss: 0.0441 - val_exposure_loss: 1.0263