I have created rasters showing different types of vegetation (bushes, trees, open land) with help from lidar data. Now I'm looking for a method to turn these images into polygons.
I'm using a Mac and preferably QGIS, GDAL, GRASS etc. I do have the possibility to use Windows but I'd prefer staying in Mac OS X.
Here is the source image:
Blue (with some red) means trees and red is bushes. White is open land.
And this image (drawn by hand) is kind of what I'd like to achieve:
Any ideas?
I've tried r.neighbors some but I'm not satisfied.
أكثر...
I'm using a Mac and preferably QGIS, GDAL, GRASS etc. I do have the possibility to use Windows but I'd prefer staying in Mac OS X.
Here is the source image:

Blue (with some red) means trees and red is bushes. White is open land.
And this image (drawn by hand) is kind of what I'd like to achieve:

Any ideas?
I've tried r.neighbors some but I'm not satisfied.
أكثر...