GEE——影像重采样分辨率92米提高到10米

//加载一个矩形框作为研究区
var PolySelection = ee.Geometry.Rectangle(13.236, 42.581, 13.336, 42.681);
//设定可视化参数1
var visualization = {
  bands: ['population'],
  min: 0.0,
  max: 50.0,
  palette: ['24126c', '1fff4f', 'd4ff50']
};

//设定可视化参数2
var visualization2 = {
  min: 0.0,
  max: 1,
  palette: ['white', 'black']
};
//设定可视化参数3
var visualization3 = {
  min: 0.0,
  max: 10,
  palette: ['white', 'red']
};

//加载一个上传的影像
var ImageAll = ee.Image.load("projects/ee-alfredoalessa/assets/OPEN_ACCESS/ImageSigma");
//裁剪所选区域
var ImageAll = ImageAll.clip(PolySelection);
//加载世界人口数据集
var WP = ee.Image.load("WorldPop/GP/100m/pop/ITA_2020")
        .clip(PolySelection);

//获取原始投影
var WP_POP_Projection = WP.projection();

var WP_POP_Scale = WP.projection().nominalScale();
//重投影
var ImageAllSUM = ImageAll.gt(0).reduceResolution({
      reducer: ee.Reducer.sum().unweighted(),
      maxPixels: 1024}).reproject({
      crs: WP_POP_Projection
    });

Map.setCenter(13.292, 42.628, 14);

Map.addLayer(WP.select('population').updateMask(WP.select('population').gt(1)), visualization, 'Population', false);

Map.addLayer(ImageAll, visualization2, 'Image');
Map.addLayer(ImageAllSUM, visualization3, 'ImageSUM');

//导出不同的影像结果
Export.image.toDrive({
   image: WP.select('population'),
   description:'WP',
   folder: 'GEE',
   region: PolySelection,
   scale: WP_POP_Scale
});

Export.image.toDrive({
   image: ImageAll,
   description:'ImageAll',
   folder: 'GEE',
   region: PolySelection,
   scale: 10
});

Export.image.toDrive({
   image: ImageAllSUM.toDouble(),
   description:'ImageAllSUM',
   folder: 'GEE',
   region: PolySelection,
   scale: WP_POP_Scale
});