Hi, I tried to perfom an unsupervised classification using Kmeans algorithm. My first question is : is this algorithm uses all the bands in case of using it on a multispectral image? or does it use only the first band of the image? I tried to use it on subset of my image extracted with gdalwarp. I decided to attribute nodata value to -9999 during the process. When I perform the kmeans classification, i can see that statistics parameters of my image used by the algorithm include no data value (so mean and stddev generated are false), and i can't avoid that. I tried to use a mask (using -vm pathotoimagemask.tif), but it doesn't change anything. Coud you help me?
Thanks Regards, Julien -- -- 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 otb-users@googlegroups.com To unsubscribe from this group, send email to otb-users+unsubscr...@googlegroups.com 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 otb-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
