25/25 [==============================] - 7s 278ms/step - total_loss: 1.0878 - illumination_smoothness_loss: 0.0102 - spatial_constancy_loss: 0.3005 - color_constancy_loss: 0.0782 - exposure_loss: 0.6990 - val_total_loss: 1.3485 - val_illumination_smoothness_loss: 0.0140 - val_spatial_constancy_loss: 0.2645 - val_color_constancy_loss: 0.0443 - val_exposure_loss: 1.0257