25/25 [==============================] - 7s 270ms/step - total_loss: 1.1360 - illumination_smoothness_loss: 0.0539 - spatial_constancy_loss: 0.2891 - color_constancy_loss: 0.0763 - exposure_loss: 0.7166 - val_total_loss: 1.3975 - val_illumination_smoothness_loss: 0.0545 - val_spatial_constancy_loss: 0.2547 - val_color_constancy_loss: 0.0410 - val_exposure_loss: 1.0473