Hi Paulo, my answers bellow
On 06/16/2015 09:34 AM, Paulo Raposo wrote: > <https://lh3.googleusercontent.com/-KKFEl6r91KM/VX_RTs5qScI/AAAAAAAADTY/7cqYh4IQ5lM/s1600/b.PNG> > > <https://lh3.googleusercontent.com/-1j2cotSB7RQ/VX_RNfSkh6I/AAAAAAAADTQ/NVUfBSBVOoQ/s1600/a.PNG> > > Hi - and thanks for great software! > > I hope this isn't too simple a question, but I'm still unclear after > having looked at multiple pieces of OTB documentation, and through this > Group. > > What exactly are the parameters for the mean shift segmentation module, > as available through Monteverdi 2? I think I'm clear on most of them > except "Range Radius". > > I think "range radius" is the "bin" size in terms of pixel values - is > this correct? Yes > > Spatial radius is in number of pixels, right? Does that count diagonal > pixels too? This is the radius in number of pixels, it is the maximum distance between a neighbor pixel and the center of the bin. > > The convergence threshold is expressed in the same numbers as the > spatial radius (e.g. default o 0.10 pixels), right? According to otbMeanShiftSmoothingImageFilter.h, the threshold is compared to the squared norm of the mean shift vector (so units should be pixel²) > > And minimum region size is in number of pixels, right? Yes, regions that have less pixels than this limit are removed. > > And Monteverdi 1 is offering the same parameters, except not the > convergence threshold or iteration limit, right? Monteverdi1 doesn't use the same filters so you should not try to compare them. > > Sorry if this seems obvious to most folks; I'm new to the software. > > Thanks, > Paulo > > -- > -- > Check the OTB FAQ at > http://www.orfeo-toolbox.org/FAQ.html > > You received this message because you are subscribed to the Google > Groups "otb-users" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/otb-users?hl=en > --- > You received this message because you are subscribed to the Google > Groups "otb-users" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout. -- <www.c-s.fr> *Guillaume PASERO* Ingénieur d'études et développement *Business Unit E-SPACE & Geo Information* <https://thor.si.c-s.fr/blogs/cs-blogs-business/>*- Département APPLICATIONS* *CS Systèmes d'Information* Parc de la Grande Plaine - 5, Rue Brindejonc des Moulinais - BP 15872 31506 Toulouse Cedex 05 - FRANCE +33 561 17 64 21 - [email protected] -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
