I'm trying to evaluate fragmentation of an ecosystem. While It is easy to calculate in ArcGIS 10.1 values such as Area, perimeter or minimum distance between fragments, I'm having problems calculating other parameters that are used in software such as Fragstats. I tried to use this software but I have problems with the memory, as my raster have a very high resolution.
I wanted to calculate first the "edge effect" also called Core Area in Fragstats. I mean, if I subtract for example the first 100 m from the border of those fragments, how much area do remain? I tried to make this with buffers but it is very difficult to calculate polygon by polygon.
Is there any way to calculate this more automatically? Maybe another options to calculate similar parameters to those of Fragstats in ArcGIS?