How to extract pixel neighborhood statistics for a region?
A function to extract image pixel neighborhood statistics for a given region. bufferPoints is a function generator that returns a function for adding a buffer to points and optionally transforming to rectangular bounds. Buffer radius (m). An optional flag indicating whether to transform buffered point (circle) to rectangular bounds or not.
How to use Gee to extract pixel values?
GEE has many functions and some times they are a bit tricky to use. This would be my way: @Rodrigo, thank you for your prompt reply. The point extraction code worked perfectly for that example.
What’s the difference between a map and a function?
Don’t confuse map () with the Map object. The former is a method on a collection, and uses map in the parallel computing sense of applying a function to every element in a collection. The function defines the operations that will be applied to every element in the collection.
How to extract reflectance values from Google Earth?
I am undertaking a project that is relating field measurements of fire severity to band values and spectral indices derived from Landsat imagery before and after the fire. I am currently using Google Earth Engine to extract surface reflectance values from a collection of Landsat images.
How to extract raster values in Google Earth Engine?
This tutorial uses the Earth Engine Code Editor JavaScript API. Extracting raster values for points or plots is essential for many types of projects. This tutorial will show you how to use Earth Engine to get a full time series of image values for points or plots in your dataset.
When to use circles instead of squares in Google Earth Engine?
The radius is set to 45 m to correspond to the 90 m pixel resolution of the DEM. In this case, circles are used instead of squares (set the second argument as false i.e., do not use bounds). Two important things to note about the zonalStats function that this example addresses: