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Yea tried from there too but no luck. That too has less amount of polygons. ThanksHi,
Which part of the world are you looking for? Openstreetmap can be a good source.
Asian countries specifically Pakistan? ThanksSo which area you need data for?
hi! can u look out if got any? Autogen Data for Pakistan?So which area you need data for?

And how can i use detection method from imagery?Hi,
A country like Pakistan will be hard indeed. Such countries are less well covered in OpenStreetMap and I also doubt that the government provides a lot of open GIS data, like many countries do nowadays.
Are you mainly looking for buildings or for vegetation data for the autogen? For the vegetation you might be able to detect it from the imagery you use.
Yea that i know but which software should i use to do that? QgIS?Green = forest
Brown = desert
Gray = city
Oh wow yea made at Zoom 18. Is there any scripts for that?scenProc can do this, but the quality of your imagery determines how good the results are. It works better for vegetation than for buildings.

ah thanks will take a look at thatCheck chapter 6 of the manual, it contains example configurations.
It's not really the zoom level of your imagery that matters. More the season they are taken, how clear the images are, etc. And if you have access to imagery with a near infrared band that also helps.