25/25 [==============================] - 7s 269ms/step - total_loss: 1.1047 - illumination_smoothness_loss: 0.0243 - spatial_constancy_loss: 0.2962 - color_constancy_loss: 0.0776 - exposure_loss: 0.7066 - val_total_loss: 1.3653 - val_illumination_smoothness_loss: 0.0256 - val_spatial_constancy_loss: 0.2590 - val_color_constancy_loss: 0.0423 - val_exposure_loss: 1.0383