25/25 [==============================] - 7s 269ms/step - total_loss: 1.0909 - illumination_smoothness_loss: 0.0126 - spatial_constancy_loss: 0.2998 - color_constancy_loss: 0.0782 - exposure_loss: 0.7004 - val_total_loss: 1.3544 - val_illumination_smoothness_loss: 0.0194 - val_spatial_constancy_loss: 0.2655 - val_color_constancy_loss: 0.0442 - val_exposure_loss: 1.0253