25/25 [==============================] - 7s 267ms/step - total_loss: 1.1940 - illumination_smoothness_loss: 0.1087 - spatial_constancy_loss: 0.2783 - color_constancy_loss: 0.0746 - exposure_loss: 0.7324 - val_total_loss: 1.4597 - val_illumination_smoothness_loss: 0.1109 - val_spatial_constancy_loss: 0.2476 - val_color_constancy_loss: 0.0399 - val_exposure_loss: 1.0613