ee.ImageCollection.select
Select bands from each image in a collection.
Returns the image collection with selected bands.
Usage | Returns | ImageCollection.select(selectors, names) | ImageCollection |
Argument | Type | Details | this: imagecollection | ImageCollection | The ImageCollection instance. |
selectors | List | A list of names, regexes or numeric indices specifying the bands to select. |
names | List, optional | A list of new names for the output bands. Must match the number of bands selected. |
Examples
Code Editor (JavaScript)
// A Sentinel-2 surface reflectance image collection.
var col = ee.ImageCollection('COPERNICUS/S2_SR')
.filterBounds(ee.Geometry.Point(-122.152, 37.336))
.filterDate('2021-01-01', '2021-02-01');
print('All band names', col.first().bandNames());
print('Select a band by name',
col.select('B11').first().bandNames());
print('Select a band by index',
col.select(10).first().bandNames());
print('Select bands using a list',
col.select(['B11', 'B8', 'B3']).first().bandNames());
print('Select bands by an argument series',
col.select('B11', 'B8', 'B3').first().bandNames());
print('Mixing string and integer selectors is valid',
col.select(10, 'B8', 2).first().bandNames());
print('Rename selected bands using two corresponding lists',
col.select(['B11', 'B8', 'B3'], ['SWIR1', 'NIR', 'Green'])
.first().bandNames());
// Use regular expressions to select bands.
print('Match "QA" followed by any two characters',
col.select('QA..').first().bandNames());
print('Match "B" followed by any character, any number of times',
col.select('B.*').first().bandNames());
print('Match "B" followed by any character, and any optional third character',
col.select('B..?').first().bandNames());
print('Match "B" followed by a character in the range 6-8',
col.select('B[6-8]').first().bandNames());
print('Match "B" followed by a character in the range 1-9 and then 1-2',
col.select('B[1-9][1-2]').first().bandNames());
print('Match "B" or "QA" each followed by any character, any number of times.',
col.select('B.*|QA.*').first().bandNames());
Python setup
See the
Python Environment page for information on the Python API and using
geemap
for interactive development.
import ee
import geemap.core as geemap
Colab (Python)
# A Sentinel-2 surface reflectance image collection.
col = ee.ImageCollection('COPERNICUS/S2_SR').filterBounds(
ee.Geometry.Point(-122.152, 37.336)
).filterDate('2021-01-01', '2021-02-01')
print('All band names', col.first().bandNames().getInfo())
print('Select a band by name:',
col.select('B11').first().bandNames().getInfo())
print('Select a band by index:',
col.select(10).first().bandNames().getInfo())
print('Select bands using a list:',
col.select(['B11', 'B8', 'B3']).first().bandNames().getInfo())
print('Select bands by an argument series:',
col.select('B11', 'B8', 'B3').first().bandNames().getInfo())
print('Mixing string and integer selectors is valid:',
col.select(10, 'B8', 2).first().bandNames().getInfo())
print('Rename selected bands using two corresponding lists:',
col.select(['B11', 'B8', 'B3'], ['SWIR1', 'NIR', 'Green'])
.first().bandNames().getInfo())
# Use regular expressions to select bands.
print('Match "QA" followed by any two characters:',
col.select('QA..').first().bandNames().getInfo())
print('Match "B" followed by any character, any number of times:',
col.select('B.*').first().bandNames().getInfo())
print('Match "B" followed by any character, and any optional third character:',
col.select('B..?').first().bandNames().getInfo())
print('Match "B" followed by a character in the range 6-8:',
col.select('B[6-8]').first().bandNames().getInfo())
print('Match "B" followed by a character in the range 1-9 and then 1-2:',
col.select('B[1-9][1-2]').first().bandNames().getInfo())
print('Match "B" or "QA" each followed by any character, any number of times:',
col.select('B.*|QA.*').first().bandNames().getInfo())
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["The `select()` method returns an ImageCollection with specified bands selected from each image within the collection."],["Band selection can be achieved using band names, numeric indices, or regular expressions."],["Selected bands can be renamed by providing a corresponding list of new names."],["The method accepts a flexible combination of selectors, including strings, integers, and lists."],["Regular expressions enable versatile pattern matching for selecting multiple bands simultaneously."]]],[]]