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ee.Kernel.circle
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Genera un kernel booleano con forma de círculo.
| Uso | Muestra |
|---|
ee.Kernel.circle(radius, units, normalize, magnitude) | Kernel |
| Argumento | Tipo | Detalles |
|---|
radius | Número de punto flotante | Es el radio del kernel que se generará. |
units | Cadena, valor predeterminado: "pixels" | Es el sistema de medición del kernel ("píxeles" o "metros"). Si el kernel se especifica en metros, cambiará de tamaño cuando se modifique el nivel de zoom. |
normalize | Booleano, valor predeterminado: verdadero | Normaliza los valores del kernel para que sumen 1. |
magnitude | Número de punto flotante, valor predeterminado: 1 | Cada valor se multiplica por esta cantidad. |
Ejemplos
Editor de código (JavaScript)
print('A circle kernel', ee.Kernel.circle({radius: 3}));
/**
* Output weights matrix (up to 1/1000 precision for brevity)
*
* [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]
* [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
* [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
* [0.034, 0.034, 0.034, 0.034, 0.034, 0.034, 0.034]
* [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
* [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
* [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]
*/
Configuración de Python
Consulta la página
Entorno de Python para obtener información sobre la API de Python y el uso de geemap para el desarrollo interactivo.
import ee
import geemap.core as geemap
Colab (Python)
from pprint import pprint
print('A circle kernel:')
pprint(ee.Kernel.circle(**{'radius': 3}).getInfo())
# Output weights matrix (up to 1/1000 precision for brevity)
# [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]
# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
# [0.034, 0.034, 0.034, 0.034, 0.034, 0.034, 0.034]
# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]
# [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]
Salvo que se indique lo contrario, el contenido de esta página está sujeto a la licencia Atribución 4.0 de Creative Commons, y los ejemplos de código están sujetos a la licencia Apache 2.0. Para obtener más información, consulta las políticas del sitio de Google Developers. Java es una marca registrada de Oracle o sus afiliados.
Última actualización: 2025-07-26 (UTC)
[null,null,["Última actualización: 2025-07-26 (UTC)"],[[["\u003cp\u003eGenerates a circle-shaped kernel for use in image processing.\u003c/p\u003e\n"],["\u003cp\u003eThe kernel's radius can be specified in pixels or meters.\u003c/p\u003e\n"],["\u003cp\u003eKernel values can be normalized to sum to 1 and scaled by a magnitude factor.\u003c/p\u003e\n"],["\u003cp\u003eUseful for operations like blurring or smoothing where a circular neighborhood is desired.\u003c/p\u003e\n"]]],["`ee.Kernel.circle()` generates a circle-shaped boolean kernel, which is returned as a Kernel object. The function takes `radius` (float) to set the kernel's size. `units` (string, 'pixels' or 'meters') defines the measurement system, with meters resizing at different zoom levels. `normalize` (boolean) determines if kernel values sum to 1. `magnitude` (float) scales each value. Example code provided demonstrate kernel creation in both JavaScript and Python, with resulting matrix outputs.\n"],null,["# ee.Kernel.circle\n\nGenerates a circle-shaped boolean kernel.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------------------------------------------------|---------|\n| `ee.Kernel.circle(radius, `*units* `, `*normalize* `, `*magnitude*`)` | Kernel |\n\n| Argument | Type | Details |\n|-------------|---------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `radius` | Float | The radius of the kernel to generate. |\n| `units` | String, default: \"pixels\" | The system of measurement for the kernel ('pixels' or 'meters'). If the kernel is specified in meters, it will resize when the zoom-level is changed. |\n| `normalize` | Boolean, default: true | Normalize the kernel values to sum to 1. |\n| `magnitude` | Float, default: 1 | Scale each value by this amount. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nprint('A circle kernel', ee.Kernel.circle({radius: 3}));\n\n/**\n * Output weights matrix (up to 1/1000 precision for brevity)\n *\n * [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]\n * [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n * [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n * [0.034, 0.034, 0.034, 0.034, 0.034, 0.034, 0.034]\n * [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n * [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n * [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]\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\nprint('A circle kernel:')\npprint(ee.Kernel.circle(**{'radius': 3}).getInfo())\n\n# Output weights matrix (up to 1/1000 precision for brevity)\n\n# [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]\n# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n# [0.034, 0.034, 0.034, 0.034, 0.034, 0.034, 0.034]\n# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n# [0.000, 0.034, 0.034, 0.034, 0.034, 0.034, 0.000]\n# [0.000, 0.000, 0.000, 0.034, 0.000, 0.000, 0.000]\n```"]]
