Hi Gdal experts,

First of all, happy holiday to all of you. Gdal-dev is really a wonderful learning platform (at least for me).

I'm wondering if someone has done something like this and would like to share the experience. Say, I have an image, e.g. NDVI, and a shapefile define one or more areas (polygons) with the image. How to calculate the statistics for each area, for example, the mean value of NDVI within each polygon.

Thanks
Xiaodong

--
Xiaodong Zhang, Ph. D
Associate Professor
Earth System Science and Policy
University of North Dakota
Tel: (701) 777-6087
http://www.und.edu/instruct/zhang
http://www.und.edu/instruct/zhang

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