25/25 [==============================] - 7s 278ms/step - total_loss: 1.1486 - illumination_smoothness_loss: 0.0659 - spatial_constancy_loss: 0.2871 - color_constancy_loss: 0.0762 - exposure_loss: 0.7195 - val_total_loss: 1.4120 - val_illumination_smoothness_loss: 0.0675 - val_spatial_constancy_loss: 0.2528 - val_color_constancy_loss: 0.0410 - val_exposure_loss: 1.0507