25/25 [==============================] - 7s 270ms/step - total_loss: 1.1202 - illumination_smoothness_loss: 0.0391 - spatial_constancy_loss: 0.2929 - color_constancy_loss: 0.0771 - exposure_loss: 0.7110 - val_total_loss: 1.3831 - val_illumination_smoothness_loss: 0.0425 - val_spatial_constancy_loss: 0.2583 - val_color_constancy_loss: 0.0420 - val_exposure_loss: 1.0403