I am working on digitizing the Agriculture land cover in a certain region. I did something very similar before and couldn't find a good alternative method beside manually digitizing, which is utterly time-consuming.
I have tried several methods. but none seems to work perfectly.
- Image Classification This is part of the original map
What I got from the Image Classfication Result:
And here is the legend:
The big problem here is that the tool seems to confuse some of the personal yards with Ag Land, which is totally understandable as some of the Ag land is like this:
But I think this can still be a foundation to base my further work on.
- I tried to extract certain classes from a landcover raster and then erase tree canopy off it. The results are not quite optimal as you can see here:
Too many "noises" and the boundary are too coarse and edgy.
Is there any solution?