25/25 [==============================] - 7s 267ms/step - total_loss: 1.3387 - illumination_smoothness_loss: 0.2350 - spatial_constancy_loss: 0.2752 - color_constancy_loss: 0.0814 - exposure_loss: 0.7471 - val_total_loss: 1.5451 - val_illumination_smoothness_loss: 0.1862 - val_spatial_constancy_loss: 0.2320 - val_color_constancy_loss: 0.0331 - val_exposure_loss: 1.0938