[Qgis-user] Alternative to orfeoToolBox GRM segmentation module for big images?

[celati Laurent]

Good afternoon ,
With the orfeo GRM segmentation module
https://www.orfeo-toolbox.org/CookBook-8.1/Applications/app_GenericRegionMerging.html
i obtain interesting results for small images/area , for instance for one
input ortho image (3 bands) . Please see result below :

[image: image.png]
i would like to get this kind of results this time for a bigger area  / big
image. But with GRM, i get error memory message because this module does
not support large image. Could you advise me/direct me towards an orfeo
segmentation or another qgis tool / associated parameters & settings that
would support large input images and that would allow me to obtain this
type of segmentation results (hight size of  segments,segments that have a
high heterogeneity acceptance threshold ).Maybe module as
"LSMSSegmentation" or " LargeScaleMeanShift" would be appropriate/relevant
?


  [1]: https://i.sstatic.net/iVoHECUj.jpg

Thanks so much
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