ee.ImageCollection.select
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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())
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Last updated 2023-10-06 UTC.
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