This method starts from relative position of stars and avoids from removing stars by gray difference.

该方法从恒星之间的相对位置入手，避开通过灰度差分消减恒星的过程。

youdao

After that take even gray difference to evaluate the similarity of target sub-zones and adjustable templates.

并采用帧间差值的统计指标，来衡量模板与目标子图的相似性。

youdao

We present a new method, which combines the method of gray transform and gray difference replacement to hide secret image.

提出了应用灰度变换差分替代方式进行图像隐藏的方法。

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Mister Gray says one major difference is the way people react to the hormone testosterone.

VOA: special.2009.03.24

But if Alexander Graham Bell had fallen into the Grand River and drowned that day back in Brantford, the world would still have had the telephone, the only difference being that the telephone company would have been nicknamed Ma Gray, not Ma Bell.

NEWYORKER: In the Air