a stylized image in various shades of gray can be seen in the central viewing position. when the sample is tilted left and right, hte shades of gray are seen to vary and appear to change dramatically.
别具风格的影像在正常的观赏角度可以看到不同深浅的灰阶效果,如果左右摆动图案,各种层次的灰阶会产生不同的明暗深浅变化。