Pengumuman: Semua project nonkomersial yang terdaftar untuk menggunakan Earth Engine sebelum
15 April 2025 harus
memverifikasi kelayakan nonkomersial untuk mempertahankan akses Earth Engine.
ee.Kernel.inverse
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Menampilkan kernel yang setiap bobotnya dibalik secara multiplikatif. Bobot dengan nilai nol tidak dibalik dan tetap nol.
| Penggunaan | Hasil |
|---|
Kernel.inverse() | Kernel |
| Argumen | Jenis | Detail |
|---|
ini: kernel | Kernel | Kernel yang entri-nya akan dibalik. |
Contoh
Code Editor (JavaScript)
var sobelKernel = ee.Kernel.sobel();
print(sobelKernel);
/**
* Output weights matrix
*
* [-1, 0, 1]
* [-2, 0, 2]
* [-1, 0, 1]
*/
print('Inverse of Sobel kernel weights', sobelKernel.inverse());
/**
* [-1.0, 0.0, 1.0]
* [-0.5, 0.0, 0.5]
* [-1.0, 0.0, 1.0]
*/
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)
from pprint import pprint
sobel_kernel = ee.Kernel.sobel()
pprint(sobel_kernel.getInfo())
# Output weights matrix
# [-1, 0, 1]
# [-2, 0, 2]
# [-1, 0, 1]
print('Inverse of Sobel kernel weights:')
pprint(sobel_kernel.inverse().getInfo())
# [-1.0, 0.0, 1.0]
# [-0.5, 0.0, 0.5]
# [-1.0, 0.0, 1.0]
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 2025-07-27 UTC.
[null,null,["Terakhir diperbarui pada 2025-07-27 UTC."],[[["\u003cp\u003eReturns a new kernel with the multiplicative inverse of the original kernel's weights.\u003c/p\u003e\n"],["\u003cp\u003eWeights with a value of zero in the original kernel remain zero in the inverted kernel.\u003c/p\u003e\n"],["\u003cp\u003eUseful for reversing the effect of a previously applied kernel, if mathematically possible.\u003c/p\u003e\n"],["\u003cp\u003eDemonstrated using the Sobel kernel as an example, showing the original and inverted weights.\u003c/p\u003e\n"]]],[],null,["# ee.Kernel.inverse\n\nReturns a kernel which has each of its weights multiplicatively inverted. Weights with a value of zero are not inverted and remain zero.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|--------------------|---------|\n| Kernel.inverse`()` | Kernel |\n\n| Argument | Type | Details |\n|----------------|--------|------------------------------------------|\n| this: `kernel` | Kernel | The kernel to have its entries inverted. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nvar sobelKernel = ee.Kernel.sobel();\nprint(sobelKernel);\n\n/**\n * Output weights matrix\n *\n * [-1, 0, 1]\n * [-2, 0, 2]\n * [-1, 0, 1]\n */\n\nprint('Inverse of Sobel kernel weights', sobelKernel.inverse());\n\n/**\n * [-1.0, 0.0, 1.0]\n * [-0.5, 0.0, 0.5]\n * [-1.0, 0.0, 1.0]\n */\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\nfrom pprint import pprint\n\nsobel_kernel = ee.Kernel.sobel()\npprint(sobel_kernel.getInfo())\n\n# Output weights matrix\n\n# [-1, 0, 1]\n# [-2, 0, 2]\n# [-1, 0, 1]\n\nprint('Inverse of Sobel kernel weights:')\npprint(sobel_kernel.inverse().getInfo())\n\n# [-1.0, 0.0, 1.0]\n# [-0.5, 0.0, 0.5]\n# [-1.0, 0.0, 1.0]\n```"]]
