I have a satellite imagery. I want to vectorize all the trees at once by color sampling. How to do it?
I used Photoshop to sample the all the various color ranges of trees [Green] to distinguish between trees and built-up area. Can I use this technique as the Photoshop converted the trees in satellite image in one colour. As you can see in this image I sampled all the trees and converted to black colour to distinguish between trees and built-up area. Now can I select this color from this image and convert it to a VECTOR for Land use and Land cover map in QGIS.