Norm pole pixels were segmented by the character of red weight and the ratio of red weight to blue weight. The characters of area and perimeter were used to make norm pole pixels nonzero value.
利用蓝色和红色分量比及红色分量特征将标杆像素分割出来，利用面积和周长等形状特征使图像中仅标杆像素有非零值。
Norm pole pixels were segmented by the character of red weight and the ratio of red weight to blue weight. The characters of area and perimeter were used to make norm pole pixels nonzero value.
利用蓝色和红色分量比及红色分量特征将标杆像素分割出来，利用面积和周长等形状特征使图像中仅标杆像素有非零值。
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