ee.Image.not

Menampilkan 0 jika input bukan nol, dan 1 jika input nol.

Penggunaan	Hasil
Image.not()	Gambar

Argumen	Jenis	Detail
ini: value	Gambar	Gambar yang akan diterapkan operasi.

Contoh

Code Editor (JavaScript)

/**
 * Demonstrates the ee.Image.Not method.
 *
 * This example uses positive integers; non-integer and negative
 * values are allowed.
 */

var notZeros = ee.Image(3);  // Define an image where all pixels are not zero.
var zeros = notZeros.not();  // Pixels are not zeros, return zeros.
var ones = zeros.not();  // Pixels are zeros, return ones.

print('zeros:', zeros);
print('ones:', ones);

// Display images to the map; explore values using the Inspector.
var visParams = {min: 0, max: 1};
Map.addLayer(notZeros, visParams, 'notZeros');
Map.addLayer(zeros, visParams, 'zeros');
Map.addLayer(ones, visParams, 'ones');

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)

"""Demonstrates the ee.Image.Not method.

This example uses positive integers; non-integer and negative
values are allowed.
"""

import pprint
import ee
ee.Authenticate()
ee.Initialize()

not_zeros = ee.Image(3)  # Define an image where all pixels are not zero.
zeros = not_zeros.Not()  # Pixels are not zeros, return zeros.
ones = zeros.Not()  # Pixels are zeros, return ones.

print('zeros:')
pprint.pprint(zeros.getInfo())
print('\nones:')
pprint.pprint(ones.getInfo())

# Sample images at a location and print the results.
loc = ee.Geometry.Point(0, 0)  # Location to sample image values.
print('not_zeros:', not_zeros.sample(loc, 1).first().get('constant').getInfo())
print('zeros:', zeros.sample(loc, 1).first().get('constant').getInfo())
print('ones:', ones.sample(loc, 1).first().get('constant').getInfo())