25/25 [==============================] - 7s 269ms/step - total_loss: 1.0895 - illumination_smoothness_loss: 0.0116 - spatial_constancy_loss: 0.3002 - color_constancy_loss: 0.0783 - exposure_loss: 0.6995 - val_total_loss: 1.3520 - val_illumination_smoothness_loss: 0.0170 - val_spatial_constancy_loss: 0.2645 - val_color_constancy_loss: 0.0439 - val_exposure_loss: 1.0267