public CIMRasterColorizer GetColorizer()

await QueuedTask.Run(() =>
{
  // Get the colorizer from the raster layer.
  CIMRasterColorizer rasterColorizer = rasterLayer.GetColorizer();
  // Update raster colorizer properties.
  rasterColorizer.Brightness = 10;
  rasterColorizer.Contrast = -5;
  rasterColorizer.ResamplingType = RasterResamplingType.NearestNeighbor;
  // Update the raster layer with the changed colorizer.
  rasterLayer.SetColorizer(rasterColorizer);
});

await QueuedTask.Run(() =>
{
  // Get the colorizer from the raster layer.
  CIMRasterColorizer rColorizer = rasterLayer.GetColorizer();
  // Check if the colorizer is an RGB colorizer.
  if (rColorizer is CIMRasterRGBColorizer rasterRGBColorizer)
  {
    // Update RGB colorizer properties.
    rasterRGBColorizer.StretchType = RasterStretchType.ESRI;
    // Update the raster layer with the changed colorizer.
    rasterLayer.SetColorizer(rasterRGBColorizer);
  }
});

await QueuedTask.Run(() =>
{
  // Get the image sub-layer from the mosaic layer.
  ImageMosaicSubLayer mosaicImageSubLayer = mosaicLayer.GetImageLayer();
  // Get the colorizer from the image sub-layer.
  CIMRasterColorizer rasterColorizer = mosaicImageSubLayer.GetColorizer();
  // Update raster colorizer properties.
  rasterColorizer.Brightness = 10;
  rasterColorizer.Contrast = -5;
  rasterColorizer.ResamplingType = RasterResamplingType.NearestNeighbor;
  // Update the image sub-layer with the changed colorizer.
  mosaicImageSubLayer.SetColorizer(rasterColorizer);
});

await QueuedTask.Run(() =>
{
  // Get the image sub-layer from the mosaic layer.
  ImageMosaicSubLayer mosaicImageSubLayer = mosaicLayer.GetImageLayer();
  // Get the colorizer from the image sub-layer.
  CIMRasterColorizer rColorizer = mosaicImageSubLayer.GetColorizer();
  // Check if the colorizer is an RGB colorizer.
  if (rColorizer is CIMRasterRGBColorizer rasterRGBColorizer)
  {
    // Update RGB colorizer properties.
    rasterRGBColorizer.StretchType = RasterStretchType.ESRI;
    // Update the image sub-layer with the changed colorizer.
    mosaicImageSubLayer.SetColorizer(rasterRGBColorizer);
  }
});

await QueuedTask.Run(() =>
{
  // Get the colorizer from the image service layer.
  CIMRasterColorizer rasterColorizer = isLayer.GetColorizer();
  // Update the colorizer properties.
  rasterColorizer.Brightness = 10;
  rasterColorizer.Contrast = -5;
  rasterColorizer.ResamplingType = RasterResamplingType.NearestNeighbor;
  // Update the image service layer with the changed colorizer.
  isLayer.SetColorizer(rasterColorizer);
});

await QueuedTask.Run(() =>
{
  // Get the colorizer from the image service layer.
  CIMRasterColorizer rColorizer = isLayer.GetColorizer();
  // Check if the colorizer is an RGB colorizer.
  if (rColorizer is CIMRasterRGBColorizer rasterRGBColorizer)
  {
    // Update RGB colorizer properties.
    rasterRGBColorizer.StretchType = RasterStretchType.ESRI;
    // Update the image service layer with the changed colorizer.
    isLayer.SetColorizer((CIMRasterColorizer)rasterRGBColorizer);
  }
});

//If a raster dataset has statistics, you can create a raster layer and get these statistics by accessing the colorizer.
await QueuedTask.Run(() =>
{
  //Accessing the raster layer
  var lyr = MapView.Active.Map.GetLayersAsFlattenedList().OfType<BasicRasterLayer>().FirstOrDefault();
  //Getting the colorizer
  var colorizer = lyr.GetColorizer() as CIMRasterStretchColorizer;
  //Accessing the statistics
  var stats = colorizer.StretchStats;
  var max = stats.max;
  var min = stats.min;
});