Google Earth Engine（GEE）——reduceRegion实现感兴趣区域ndvi均值的统计

reduceRegion(reducer, geometry, scale, crs, crsTransform, bestEffort, maxPixels, tileScale)

Apply a reducer to all the pixels in a specific region.

Either the reducer must have the same number of inputs as the input image has bands, or it must have a single input and will be repeated for each band.

Returns a dictionary of the reducer's outputs.

对一个特定区域的所有像素应用一个还原器。

减速器的输入数必须与输入图像的波段数相同，或者它必须有一个输入，并对每个波段进行重复。

返回还原器的输出的字典。

Arguments:

this:image (Image):

The image to reduce.

reducer (R

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来源： https://blog.csdn.net/qq_31988139/article/details/121126267