25/25 [==============================] - 7s 268ms/step - total_loss: 1.1439 - illumination_smoothness_loss: 0.0617 - spatial_constancy_loss: 0.2876 - color_constancy_loss: 0.0761 - exposure_loss: 0.7184 - val_total_loss: 1.4064 - val_illumination_smoothness_loss: 0.0628 - val_spatial_constancy_loss: 0.2538 - val_color_constancy_loss: 0.0408 - val_exposure_loss: 1.0490