25/25 [==============================] - 7s 279ms/step - total_loss: 1.0895 - illumination_smoothness_loss: 0.0114 - spatial_constancy_loss: 0.2995 - color_constancy_loss: 0.0782 - exposure_loss: 0.7003 - val_total_loss: 1.3520 - val_illumination_smoothness_loss: 0.0168 - val_spatial_constancy_loss: 0.2643 - val_color_constancy_loss: 0.0438 - val_exposure_loss: 1.0270