因此，两个值以20像素的间距绘制，全部数组的计算结果为。

So each value is plotted at 20-pixel intervals, hence working through the array.

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在边界提取时选取有一定间距的像素分别计算三原色梯度，把其中绝对值最大的梯度作为边界存在的判据之一，同时根据二阶导数符号变化提取边界。

Third, the gradient between two pixels that have certain distance was calculated in three color components respectively, and then the maximum of gradients of the three was attained.

youdao

因此，如果两个相邻段落的边距分别为20像素和40像素，那么两个段落之间的最终间距为40像素，即两个边距值中较大的一个。

So, if two adjacent paragraphs have margins of 20 pixels and 40 pixels respectively, the resulting space between the paragraphs is 40 pixels, the larger of the two margin values.

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