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ee.ImageCollection.size

  • Thesize() method returns the number of elements in a collection.

  • Usingsize() on large or complex collections can consume significant time and memory, potentially causing errors.

  • The method is used withImageCollection.size() and returns an Integer.

  • Examples are provided in both JavaScript and Python.

 Returns the number of elements in the collection.

UsageReturns
ImageCollection.size()Integer
ArgumentTypeDetails
this:collectionFeatureCollectionThe collection to count.

Examples

Code Editor (JavaScript)

// Note: ee.ImageCollection.size may take a lot of time and memory to run,// since it must generate all of the results in order to count them. Large// collections and/or complex computations can produce memory limitation// errors.// A Landsat 8 TOA image collection (1 year of images at a specific point).varcol=ee.ImageCollection('LANDSAT/LC08/C02/T1_TOA').filterBounds(ee.Geometry.Point(-90.70,34.71)).filterDate('2020-01-01','2021-01-01');// Get the number of images in the collection.print('Number of images',col.size());

Python setup

See the Python Environment page for information on the Python API and usinggeemap for interactive development.

importeeimportgeemap.coreasgeemap

Colab (Python)

# Note: ee.ImageCollection.size may take a lot of time and memory to run,# since it must generate all of the results in order to count them. Large# collections and/or complex computations can produce memory limitation# errors.# A Landsat 8 TOA image collection (1 year of images at a specific point).col=ee.ImageCollection('LANDSAT/LC08/C02/T1_TOA').filterBounds(ee.Geometry.Point(-90.70,34.71)).filterDate('2020-01-01','2021-01-01')# Get the number of images in the collection.display('Number of images',col.size())

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Last updated 2023-10-06 UTC.