ee.Image.clip

Recorta una imagen según una geometría o una función.

Las bandas de salida corresponden exactamente a las bandas de entrada, excepto que los datos no cubiertos por la geometría se enmascaran. La imagen de salida conserva los metadatos de la imagen de entrada.

Usa clipToCollection para recortar una imagen en un FeatureCollection.

Devuelve la imagen recortada.

UsoMuestra
Image.clip(geometry)Imagen
ArgumentoTipoDetalles
esta: imageImagenEs la instancia de Image.
geometryFeature|Geometry|ObjectEs la geometría o el componente para el que se realizará el recorte.

Ejemplos

Editor de código (JavaScript)

// A digital elevation model.
var dem = ee.Image('NASA/NASADEM_HGT/001');
var demVis = {bands: 'elevation', min: 0, max: 1500};

// Clip the DEM by a polygon geometry.
var geomPoly = ee.Geometry.BBox(-121.55, 39.01, -120.57, 39.38);
var demClip = dem.clip(geomPoly);
print('Clipped image retains metadata and band names', demClip);
Map.setCenter(-121.12, 38.13, 8);
Map.addLayer(demClip, demVis, 'Polygon clip');
Map.addLayer(geomPoly, {color: 'green'}, 'Polygon geometry', false);

// Clip the DEM by a line geometry.
var geomLine = ee.Geometry.LinearRing(
    [[-121.19, 38.10], [-120.53, 38.54], [-120.22, 37.83], [-121.19, 38.10]]);
Map.addLayer(dem.clip(geomLine), demVis, 'Line clip');
Map.addLayer(geomLine, {color: 'orange'}, 'Line geometry', false);

// Images have geometry; clip the dem image by the geometry of an S2 image.
var s2Img = ee.Image('COPERNICUS/S2_SR/20210109T185751_20210109T185931_T10SEG');
var geomS2Img = s2Img.geometry();
Map.addLayer(dem.clip(geomS2Img), demVis, 'Image geometry clip');
Map.addLayer(geomS2Img, {color: 'blue'}, 'Image geometry', false);

// Don't use ee.Image.clip prior to ee.Image.regionReduction, the "geometry"
// parameter handles it more efficiently.
var zonalMax = dem.select('elevation').reduceRegion({
  reducer: ee.Reducer.max(),
  geometry: geomPoly
});
print('Max elevation (m)', zonalMax.get('elevation'));

// Don't use ee.Image.clip to clip an image by a FeatureCollection, use
// ee.Image.clipToCollection(collection).
var watersheds = ee.FeatureCollection('USGS/WBD/2017/HUC10')
    .filterBounds(ee.Geometry.Point(-122.754, 38.606).buffer(2e4));
Map.addLayer(dem.clipToCollection(watersheds), demVis, 'Watersheds clip');
Map.addLayer(watersheds, {color: 'red'}, 'Watersheds', false);

Configuración de Python

Consulta la página Entorno de Python para obtener información sobre la API de Python y el uso de geemap para el desarrollo interactivo.

import ee
import geemap.core as geemap

Colab (Python)

# A digital elevation model.
dem = ee.Image('NASA/NASADEM_HGT/001')
dem_vis = {'bands': 'elevation', 'min': 0, 'max': 1500}

# Clip the DEM by a polygon geometry.
geom_poly = ee.Geometry.BBox(-121.55, 39.01, -120.57, 39.38)
dem_clip = dem.clip(geom_poly)
display('Clipped image retains metadata and band names', dem_clip)
m = geemap.Map()
m.set_center(-121.12, 38.13, 8)
m.add_layer(dem_clip, dem_vis, 'Polygon clip')
m.add_layer(geom_poly, {'color': 'green'}, 'Polygon geometry', False)

# Clip the DEM by a line geometry.
geom_line = ee.Geometry.LinearRing(
    [[-121.19, 38.10], [-120.53, 38.54], [-120.22, 37.83], [-121.19, 38.10]]
)
m.add_layer(dem.clip(geom_line), dem_vis, 'Line clip')
m.add_layer(geom_line, {'color': 'orange'}, 'Line geometry', False)

# Images have geometry clip the dem image by the geometry of an S2 image.
s_2_img = ee.Image('COPERNICUS/S2_SR/20210109T185751_20210109T185931_T10SEG')
geom_s_2_img = s_2_img.geometry()
m.add_layer(dem.clip(geom_s_2_img), dem_vis, 'Image geometry clip')
m.add_layer(geom_s_2_img, {'color': 'blue'}, 'Image geometry', False)

# Don't use ee.Image.clip prior to ee.Image.regionReduction, the "geometry"
# parameter handles it more efficiently.
zonal_max = dem.select('elevation').reduceRegion(
    reducer=ee.Reducer.max(), geometry=geom_poly
)
display('Max elevation (m)', zonal_max.get('elevation'))

# Don't use ee.Image.clip to clip an image by a FeatureCollection, use
# ee.Image.clipToCollection(collection).
watersheds = ee.FeatureCollection('USGS/WBD/2017/HUC10').filterBounds(
    ee.Geometry.Point(-122.754, 38.606).buffer(2e4)
)
m.add_layer(dem.clipToCollection(watersheds), dem_vis, 'Watersheds clip')
m.add_layer(watersheds, {'color': 'red'}, 'Watersheds', False)
m