25/25 [==============================] - 7s 279ms/step - total_loss: 1.1327 - illumination_smoothness_loss: 0.0512 - spatial_constancy_loss: 0.2907 - color_constancy_loss: 0.0770 - exposure_loss: 0.7138 - val_total_loss: 1.3946 - val_illumination_smoothness_loss: 0.0515 - val_spatial_constancy_loss: 0.2546 - val_color_constancy_loss: 0.0414 - val_exposure_loss: 1.0471