ee.Image.reduceResolution

AI-generated Key Takeaways

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• Enables reprojection using a specified reducer to combine input pixels into output pixels.

• Reducer output names determine the names of the output bands based on the reducer type and number of inputs/outputs.

• Reducer input weights are calculated as the product of the input mask and the fraction of the output pixel covered by the input pixel.

• The reduceResolution method takes an image, a reducer, and optional bestEffort and maxPixels arguments.

• The reduceResolution method returns an Image.

Enables reprojection using the given reducer to combine all input pixels corresponding to each output pixel. If the reducer has a single input, it will be applied separately to each band of the collection; otherwise it must have the same number of inputs as the input image has bands.

The reducer output names determine the names of the output bands: reducers with multiple inputs will use the output names directly, reducers with a single input and single output will preserve the input band names, and reducers with a single input and multiple outputs will prefix the output name with the input band name (e.g., '10_mean', '10_stdDev', '20_mean', '20_stdDev').

Reducer input weights will be the product of the input mask and the fraction of the output pixel covered by the input pixel.

Usage	Returns
Image. reduceResolution (reducer, bestEffort , maxPixels )	Image

Argument	Type	Details
this: image	Image	The input image.
reducer	Reducer	The reducer to apply to be used for combining pixels.
bestEffort	Boolean, default: false	If using the input at its default resolution would require too many pixels, start with already-reduced input pixels from a pyramid level that allows the operation to succeed.
maxPixels	Integer, default: 64	The maximum number of input pixels to combine for each output pixel. Setting this too large will cause out-of-memory problems.