公告：所有在
2025 年 4 月 15 日之前注册使用 Earth Engine 的非商业项目都必须
验证是否符合非商业性质的资格条件，才能继续使用 Earth Engine。
ee.Kernel.diamond
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
生成菱形布尔值内核。
| 用法 | 返回 |
|---|
ee.Kernel.diamond(radius, units, normalize, magnitude) | 内核 |
| 参数 | 类型 | 详细信息 |
|---|
radius | 浮点数 | 要生成的内核的半径。 |
units | 字符串，默认值：“pixels” | 内核的测量系统（“像素”或“米”）。如果以米为单位指定了内核，则当缩放级别发生变化时，内核会调整大小。 |
normalize | 布尔值，默认值：true | 将内核值归一化为总和为 1。 |
magnitude | 浮点数，默认值：1 | 按此量缩放每个值。 |
示例
代码编辑器 (JavaScript)
print('A diamond kernel', ee.Kernel.diamond({radius: 3}));
/**
* Output weights matrix (up to 1/100 precision for brevity)
*
* [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]
* [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]
* [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]
* [0.04, 0.04, 0.04, 0.04, 0.04, 0.04, 0.04]
* [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]
* [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]
* [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]
*/
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)
from pprint import pprint
print('A diamond kernel:')
pprint(ee.Kernel.diamond(**{'radius': 3}).getInfo())
# Output weights matrix (up to 1/100 precision for brevity)
# [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]
# [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]
# [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]
# [0.04, 0.04, 0.04, 0.04, 0.04, 0.04, 0.04]
# [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]
# [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]
# [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-26。
[null,null,["最后更新时间 (UTC)：2025-07-26。"],[[["\u003cp\u003eGenerates a diamond-shaped kernel for use in image processing operations.\u003c/p\u003e\n"],["\u003cp\u003eThe kernel weights are by default normalized to sum to 1, creating a smoothing effect.\u003c/p\u003e\n"],["\u003cp\u003eYou can control the radius of the diamond kernel and specify its units in pixels or meters.\u003c/p\u003e\n"],["\u003cp\u003eAn optional magnitude argument allows scaling the kernel weights for custom effects.\u003c/p\u003e\n"],["\u003cp\u003eThe diamond kernel is useful for operations that require equal consideration of pixels in all diagonal and orthogonal directions.\u003c/p\u003e\n"]]],["The `ee.Kernel.diamond` function generates a diamond-shaped boolean kernel. Key parameters include `radius`, defining the kernel's size; `units` (pixels or meters), specifying the measurement system; `normalize` (boolean), controlling if values sum to 1; and `magnitude`, used to scale values. The function returns a Kernel object. An example demonstrates creating a radius-3 kernel with a matrix showing the diamond pattern and its weighted values.\n"],null,["# ee.Kernel.diamond\n\nGenerates a diamond-shaped boolean kernel.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------------------------------------------------------|---------|\n| `ee.Kernel.diamond(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 diamond kernel', ee.Kernel.diamond({radius: 3}));\n\n/**\n * Output weights matrix (up to 1/100 precision for brevity)\n *\n * [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]\n * [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]\n * [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]\n * [0.04, 0.04, 0.04, 0.04, 0.04, 0.04, 0.04]\n * [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]\n * [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]\n * [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]\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 diamond kernel:')\npprint(ee.Kernel.diamond(**{'radius': 3}).getInfo())\n\n# Output weights matrix (up to 1/100 precision for brevity)\n\n# [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]\n# [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]\n# [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]\n# [0.04, 0.04, 0.04, 0.04, 0.04, 0.04, 0.04]\n# [0.00, 0.04, 0.04, 0.04, 0.04, 0.04, 0.00]\n# [0.00, 0.00, 0.04, 0.04, 0.04, 0.00, 0.00]\n# [0.00, 0.00, 0.00, 0.04, 0.00, 0.00, 0.00]\n```"]]
