Galton devised a method of creating composite pictures in which the features of different faces were superimposed over one another.高尔顿发明了一种把不同人的五官相互叠加在一起的制作合成照片的方法。Galton created composite pictures in which different faces were superimposed over one another.高尔顿制作的合成照片是由不同的头像叠印而成的。