25/25 [==============================] - 7s 270ms/step - total_loss: 1.1012 - illumination_smoothness_loss: 0.0208 - spatial_constancy_loss: 0.2967 - color_constancy_loss: 0.0775 - exposure_loss: 0.7064 - val_total_loss: 1.3636 - val_illumination_smoothness_loss: 0.0250 - val_spatial_constancy_loss: 0.2607 - val_color_constancy_loss: 0.0428 - val_exposure_loss: 1.0352