25/25 [==============================] - 7s 270ms/step - total_loss: 1.1177 - illumination_smoothness_loss: 0.0365 - spatial_constancy_loss: 0.2932 - color_constancy_loss: 0.0772 - exposure_loss: 0.7107 - val_total_loss: 1.3784 - val_illumination_smoothness_loss: 0.0376 - val_spatial_constancy_loss: 0.2578 - val_color_constancy_loss: 0.0418 - val_exposure_loss: 1.0412