Earth Engine is introducing
noncommercial quota tiers to safeguard shared compute resources and ensure reliable performance for everyone. All noncommercial projects will need to select a quota tier by
April 27, 2026 or will use the Community Tier by default. Tier quotas will take effect for all projects (regardless of tier selection date) on
April 27, 2026.
Learn more.
ee.Image.reduceConnectedComponents
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Applies a reducer to all of the pixels inside of each 'object'. Pixels are considered to belong to an object if they are connected (8-way) and have the same value in the 'label' band. The label band is only used to identify the connectedness; the rest are provided as inputs to the reducer.
| Usage | Returns | Image.reduceConnectedComponents(reducer, labelBand, maxSize) | Image |
| Argument | Type | Details | this: image | Image | The input image. |
reducer | Reducer | The reducer to apply to pixels within the connected component. |
labelBand | String, default: null | The name of the band to use to detect connectedness. If unspecified, the first band is used. |
maxSize | Integer, default: 256 | Size of the neighborhood to consider when aggregating values. Any objects larger than maxSize in either the horizontal or vertical dimension will be masked, since portions of the object might be outside of the neighborhood. |
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Last updated 2024-07-13 UTC.
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