Hi Moritz, On Tue, Mar 21, 2017 at 1:49 PM, Moritz Lennert <[email protected]> wrote: > Hi all, > > FYI, I uploaded a simple new addon, i.variance [1], which calculates local > variance in an image for successively degraded resolution in order to detect > whether there are certain scales corresponding to specific, well-represented > objects in that image. It is based on [2].
Very interesting! Would you mind to add a note on how to interprete the "peak values of variance" in the examples? Say, what to deduce from it in terms of the size of detectable objects? thanks Markus > Enjoy ! > > Moritz > > [1] https://grass.osgeo.org/grass72/manuals/addons/i.variance.html > [2] Curtis E. Woodcock, Alan H. Strahler, The factor of scale in remote > sensing, Remote Sensing of Environment, Volume 21, Issue 3, April 1987, > Pages 311-332, ISSN 0034-4257, > http://dx.doi.org/10.1016/0034-4257(87)90015-0. > > > _______________________________________________ > grass-dev mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/grass-dev -- Markus Neteler, PhD http://www.mundialis.de - free data with free software http://grass.osgeo.org http://courses.neteler.org/blog _______________________________________________ grass-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-dev
