Hi Jordi, 


In my opinion the tool that you have proposed would be a really valuable 
addition to OTB. Such a tool's ability to 

also calculate percentiles would be relevant for the analysis of LiDAR 
derived products for forestry applications. 


The GDAL based pktools [1] provides a tool (pkextractogr [2]), which to a 
large extent, provides much of the functionality 

that you have outlined in your email and maybe useful for 
review/comparison. While GRASS-GIS provides v.rast.stats [3], 

with extended statistics being calculated by specifying the -e flag. 


best regards,

Daniel. 


[1]: http://pktools.nongnu.org/html/index.html

[2]: http://pktools.nongnu.org/html/pkextractogr.html

[3]: https://grass.osgeo.org/grass74/manuals/v.rast.stats.html

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