ee.Image.not

如果输入不为零，则返回 0；否则返回 1。

用法	返回
Image.not()	图片

参数	类型	详细信息
此：value	图片	应用操作的图片。

示例

代码编辑器 (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');

Python 设置

如需了解 Python API 和如何使用 geemap 进行交互式开发，请参阅 Python 环境页面。

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.
"""
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.

display('zeros:', zeros)
display('ones:', ones)

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