探讨了灰色关联度计算方法在边缘检测中的适用情况，提出并实现了基于灰色加权绝对关联度的灰度图边缘检测算法。
Discuss applicability of gray correlation degree in image edge detection and puts forward and fulfils an algorithm of image edge detection based on gray weighted absolute correlation degree.
因此，如果需要打印黑色或灰色的阶调效果时，只能使用青色、黄色、品红色等三种颜色来调制灰度。
Therefore, if need to print black or gray of effect, can use blue, yellow, red, three colors to modulation gray.
鉴于交不亲和灰度指数在深基坑支护方案的优化，灰色物元分析的基础上提出的优化模型。
In view of the incompatibility and grayness of indices in optimization of supporting scheme for deep foundation pit, an optimization model based on grey matter element analysis is presented.
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