Chris_B Posted June 11, 2013 Report Share Posted June 11, 2013 I have a question if anyone can answer, it'd be greatly appreciated! I have Erdas Imagine 10, Arcmap 10 and ENVI 5. I am interested in limiting classes to specific areas of the image during a supervised classification. For example, if I know that wetlands only occur in the south-west area of my image, is there a way to limit that class to only measure pixels in the south-west portion of my image? This way I am ensuring the wetlands class only appears where I know wetlands actually exist on the ground and the class can't appear anywhere else - only in the area of the image that I delineate, and so prevents class confusion in other parts of the map. I there a way to do this, is it possible with the software mentioned above? 1 Quote Link to comment Share on other sites More sharing options...
3dbu Posted June 12, 2013 Report Share Posted June 12, 2013 if make a desicion tree i thnk may be possible but remember that we ever use a sign for each use land .... Quote Link to comment Share on other sites More sharing options...
franklin rose Posted June 13, 2013 Report Share Posted June 13, 2013 If you are using envi you can build a mask to filter out areas you dont want to use in the classification. Or you can click on the spatial subset button which gives you some other options... Quote Link to comment Share on other sites More sharing options...
Chris_B Posted June 13, 2013 Author Report Share Posted June 13, 2013 Franklin - I would still like to classify other parts of the image, but without certain classes being used there. Captain - I'm not sure I understand your comment about signs for land use? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.