my problem is apparently quite simple, but I cannot really find an easy answer: in QGIS I've created a raster layer by merging different GeoTiff images from the ASTER 30m DEM dataset.
The merging is ok: by moving the cursor I can see that the coordinates make sense and so the elevation.
What I'd like now is to extract the longitude and latitude informations from each pixel (generating a matrix the size of the layer with Lat values and one with Lon values), but I really don't know how to do it.
I also tried to import the image in MATLAB using the geotiffread function, but I cannot extract such information...
Thanks to all!