1

I made new layer for NDVI. Now, I have to get coordinates for some range of NDVI.

Let's say I have to get coordinates for NDVI from 0.1 to 0.3. How I can do it? I saw several YouTube tutorials - but there was nothing about NDVI coordinates.

Should I create new layer for coordinates or some grid?

nmtoken
  • 13,355
  • 5
  • 38
  • 87
captain-yossarian
  • 113
  • 4

1 Answers1

1

Your question entails two steps:

  1. filter/mask the NDVI for pixels within required range.
  2. get pixel coordinates.

For step 1, run a raster calculator expression like so

(("ndvi">= 0.1 AND "ndvi" <=0.3 )*"ndvi") / (("ndvi">= 0.1 AND "ndvi" <=0.3)*1 + ("x""ndvi"< 0.1 OR "ndvi" > 0.3)*0)

The result being a raster that retains the ndvi value for pixels within required range. method described here

For step 2, use you can use the Raster pixels to points tool, to sample each pixel center.

HDunn
  • 8,626
  • 3
  • 40
  • 71