ee.Kernel.octagon

Menghasilkan kernel boolean berbentuk segi delapan.

Penggunaan	Hasil
ee.Kernel.octagon(radius, units, normalize, magnitude)	Kernel

Argumen	Jenis	Detail
radius	Float	Radius kernel yang akan dibuat.
units	String, default: "pixels"	Sistem pengukuran untuk kernel ('piksel' atau 'meter'). Jika kernel ditentukan dalam meter, kernel akan diubah ukurannya saat level zoom diubah.
normalize	Boolean, default: benar (true)	Menormalisasi nilai kernel agar berjumlah 1.
magnitude	Float, default: 1	Menskalakan setiap nilai dengan jumlah ini.

Contoh

Code Editor (JavaScript)

print('An octagon kernel', ee.Kernel.octagon({radius: 3}));

/**
 * Output weights matrix (up to 1/1000 precision for brevity)
 *
 * [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]
 * [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
 * [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
 * [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
 * [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
 * [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
 * [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]
 */

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

print('An octagon kernel:')
pprint(ee.Kernel.octagon(**{'radius': 3}).getInfo())

#  Output weights matrix (up to 1/1000 precision for brevity)

#  [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]
#  [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
#  [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
#  [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
#  [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
#  [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
#  [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]