求翻译：对于暗区域的反差拉伸处理，如果采取分段处理的方式，会导致过渡区域存在明显分割痕迹，为了不产生这种痕迹，选取平滑函数进行拉伸处理是什么意思？

Dark areas of contrast stretching treatment, if taken multipart handling will result in the transition region there are signs of obvious segmentation in order not to produce such traces, select the smoothing function to stretch processing

For the contrast between dark areas stretch, if you take a segment of the way, it can result in significant transition area, in order to split marks did not produce such a smooth function, check marks for tensile processing

Regarding dark region contrast stretch processing, if adopts the staging treating the way, can cause the transition region existence obvious division trace, in order to does not produce this kind of trace, the selection smooth function carries on stretch processing

For dark areas of contrast stretch, if a segmented approach, will lead the transition region there are obvious signs of segmentation, in order not to produce such marks, select stretch with a smooth function

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