Mandar, How are you getting your patches? If you are doing it on a pixel by pixel basis, then you can simply count the number of pixels in a patch to estimate the area and you can count the number of pixels in an outline of the patch to estimate the perimeter.
On Fri, Nov 28, 2008 at 12:55 PM, Roy H. Han < [EMAIL PROTECTED]> wrote: > How are you getting your patches? > If you are doing it on a pixel by pixel basis, then you can simply count > the number of pixels in a patch to estimate the area and you can count the > number of pixels in an outline of the patch to estimate the perimeter. > > 2008/11/28 Mandar Sarlashkar <[EMAIL PROTECTED]> > >> >> Dear all, >> >> I am planning to use PIL in my assignment. >> >> One of the tasks is to calculate index such as 'Patch Density' for a >> classified Land-use Land Cover Image. >> >> I am not getting how to handle different class patches in an image. >> >> How can I retrieve information for each patch such as area and perimeter? >> >> I can use FRAGSTAS for getting such indices but a python script >> or guidance how it can be done using python and PIL will be more helpful. >> >> Thanking you for your time and consideration in advance. >> >> Regards, >> >> Maddy >> >> ------------------------------ >> What's on the ramp today could be on the streets tomorrow. Keep up with >> trends on MSN Lifestyle Try it! <http://lifestyle.in.msn.com/> >> >> _______________________________________________ >> Image-SIG maillist - Image-SIG@python.org >> http://mail.python.org/mailman/listinfo/image-sig >> >> >
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