25/25 [==============================] - 13s 271ms/step - total_loss: 4.8773 - illumination_smoothness_loss: 1.9298 - spatial_constancy_loss: 4.2610e-06 - color_constancy_loss: 0.0027 - exposure_loss: 2.9448 - val_total_loss: 4.3163 - val_illumination_smoothness_loss: 1.3040 - val_spatial_constancy_loss: 1.4072e-06 - val_color_constancy_loss: 5.3277e-04 - val_exposure_loss: 3.0117