25/25 [==============================] - 7s 279ms/step - total_loss: 1.1155 - illumination_smoothness_loss: 0.0349 - spatial_constancy_loss: 0.2953 - color_constancy_loss: 0.0777 - exposure_loss: 0.7077 - val_total_loss: 1.3767 - val_illumination_smoothness_loss: 0.0341 - val_spatial_constancy_loss: 0.2545 - val_color_constancy_loss: 0.0413 - val_exposure_loss: 1.0467