25/25 [==============================] - 7s 278ms/step - total_loss: 1.0889 - illumination_smoothness_loss: 0.0110 - spatial_constancy_loss: 0.3004 - color_constancy_loss: 0.0782 - exposure_loss: 0.6993 - val_total_loss: 1.3513 - val_illumination_smoothness_loss: 0.0166 - val_spatial_constancy_loss: 0.2649 - val_color_constancy_loss: 0.0442 - val_exposure_loss: 1.0257