var sample = img.addBands(lc).stratifiedSample({ numPoints: 1000, classBand: label, region: table, scale: 10, geometries: true });将以上代买从针对单张图像改写成针对图像集
时间: 2024-02-11 07:09:30 浏览: 22
可以使用`map()`函数来对图像集中的每张图像运行相同的操作。下面是将以上代码修改为针对图像集的示例代码:
```
var images = ee.ImageCollection("YOUR_IMAGE_COLLECTION_ID");
var addSample = function(img) {
var lc = img.select("YOUR_LC_BANDS");
var label = img.select("YOUR_LABEL_BAND");
var table = ee.FeatureCollection("YOUR_REGION_TABLE_ID");
var sample = img.addBands(lc).stratifiedSample({
numPoints: 1000,
classBand: label,
region: table,
scale: 10,
geometries: true
});
return sample;
};
var samples = images.map(addSample);
```
需要将`YOUR_IMAGE_COLLECTION_ID`替换为你自己的图像集合ID,`YOUR_LC_BANDS`替换为你自己的地表覆盖分类数据所在的波段,`YOUR_LABEL_BAND`替换为你自己的标签数据所在的波段,`YOUR_REGION_TABLE_ID`替换为你自己的区域表格ID。
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