25/25 [==============================] - 7s 266ms/step - total_loss: 1.2262 - illumination_smoothness_loss: 0.1400 - spatial_constancy_loss: 0.2726 - color_constancy_loss: 0.0734 - exposure_loss: 0.7402 - val_total_loss: 1.4806 - val_illumination_smoothness_loss: 0.1233 - val_spatial_constancy_loss: 0.2356 - val_color_constancy_loss: 0.0371 - val_exposure_loss: 1.0847