25/25 [==============================] - 7s 268ms/step - total_loss: 1.1529 - illumination_smoothness_loss: 0.0702 - spatial_constancy_loss: 0.2856 - color_constancy_loss: 0.0757 - exposure_loss: 0.7215 - val_total_loss: 1.4164 - val_illumination_smoothness_loss: 0.0720 - val_spatial_constancy_loss: 0.2525 - val_color_constancy_loss: 0.0403 - val_exposure_loss: 1.0515