25/25 [==============================] - 7s 266ms/step - total_loss: 1.2202 - illumination_smoothness_loss: 0.1325 - spatial_constancy_loss: 0.2739 - color_constancy_loss: 0.0734 - exposure_loss: 0.7404 - val_total_loss: 1.4765 - val_illumination_smoothness_loss: 0.1231 - val_spatial_constancy_loss: 0.2408 - val_color_constancy_loss: 0.0381 - val_exposure_loss: 1.0745