Pengumuman: Semua project nonkomersial yang terdaftar untuk menggunakan Earth Engine sebelum
15 April 2025 harus
memverifikasi kelayakan nonkomersial untuk mempertahankan akses Earth Engine.
ee.ImageCollection.size
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Menampilkan jumlah elemen dalam koleksi.
| Penggunaan | Hasil |
|---|
ImageCollection.size() | Bilangan Bulat |
| Argumen | Jenis | Detail |
|---|
ini: collection | FeatureCollection | Koleksi yang akan dihitung. |
Contoh
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).
var 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.
print('Number of images', col.size());
Penyiapan Python
Lihat halaman
Lingkungan Python untuk mengetahui informasi tentang Python API dan penggunaan
geemap untuk pengembangan interaktif.
import ee
import geemap.core as geemap
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.
print('Number of images', col.size().getInfo())
Kecuali dinyatakan lain, konten di halaman ini dilisensikan berdasarkan Lisensi Creative Commons Attribution 4.0, sedangkan contoh kode dilisensikan berdasarkan Lisensi Apache 2.0. Untuk mengetahui informasi selengkapnya, lihat Kebijakan Situs Google Developers. Java adalah merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-26 UTC.
[null,null,["Terakhir diperbarui pada 2025-07-26 UTC."],[[["\u003cp\u003eThe \u003ccode\u003esize()\u003c/code\u003e function returns the number of elements (e.g., images) in an Earth Engine ImageCollection.\u003c/p\u003e\n"],["\u003cp\u003eIt takes one argument, the collection to count, and returns an integer representing the number of elements.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eee.ImageCollection.size()\u003c/code\u003e can be computationally intensive for large collections, potentially causing memory errors due to the need to generate all results for counting.\u003c/p\u003e\n"]]],[],null,["# ee.ImageCollection.size\n\nReturns the number of elements in the collection.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|--------------------------|---------|\n| ImageCollection.size`()` | Integer |\n\n| Argument | Type | Details |\n|--------------------|-------------------|--------------------------|\n| this: `collection` | FeatureCollection | The collection to count. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Note: ee.ImageCollection.size may take a lot of time and memory to run,\n// since it must generate all of the results in order to count them. Large\n// collections and/or complex computations can produce memory limitation\n// errors.\n\n// A Landsat 8 TOA image collection (1 year of images at a specific point).\nvar col = ee.ImageCollection('LANDSAT/LC08/C02/T1_TOA')\n .filterBounds(ee.Geometry.Point(-90.70, 34.71))\n .filterDate('2020-01-01', '2021-01-01');\n\n// Get the number of images in the collection.\nprint('Number of images', col.size());\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# Note: ee.ImageCollection.size may take a lot of time and memory to run,\n# since it must generate all of the results in order to count them. Large\n# collections and/or complex computations can produce memory limitation\n# errors.\n\n# A Landsat 8 TOA image collection (1 year of images at a specific point).\ncol = ee.ImageCollection('LANDSAT/LC08/C02/T1_TOA').filterBounds(\n ee.Geometry.Point(-90.70, 34.71)\n ).filterDate('2020-01-01', '2021-01-01')\n\n# Get the number of images in the collection.\nprint('Number of images', col.size().getInfo())\n```"]]
