The human eye can distinguish about 500 shades of gray.
人类的眼睛可以区分大约500种不同明暗程度的灰色。
The human eye can distinguish about 500 shades of gray.
人类的眼睛可以区分年夜约500 种分歧明暗水平的灰色。
According to the characteristics of the SUSAN template, the gray symmetry degree was defined to distinguish the corner from the edge.
根据SUSAN模板中角点的特性，提出了灰度对称度的概念，利用灰度对称度区别出棋盘格的角点和边缘。
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