Re: [otb-users] Band Importance in Multi-band Raster Image Classification

[Guillaume Pasero]

Hi, This approach look like dimensionality reduction. The idea is to reduce the number of components based on redundant information. You can have a look at the application DimensionalityReduction. Guillaume On 01/24/2017 05:33 PM, Jake Shermeyer wrote: Hi all, I'm presently using the Gradient Boosting Tree classifier as part of the TrainImagesClassifier tool.  I have a vector training dataset and a multi-band raster that serves as my input.  I've been successfully outputting models and cal/val confusion matrices. I then use  these matrices as verification data to optimize my classifier, adjust parameters, and tweak the bands I use as inputs.   As part of this process, I've been adding and removing bands included in my input raster and I would like to see which bands are contributing or are weighted the most in the classification. For example the classifier makes decisions and groups pixels into specific classes based on each band x% of the time: Band 1- 10% Band 2- 25% Band 3- 50% Band 4- 15% Having this information will allow me to remove less valuable bands and ensure I'm using the strongest set of data that will be the most effective. Is this a possibility?  Or is there a comparable work-around if not? Thanks -- -- 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. -- Guillaume PASERO Responsable technique Business Unit ESPACE & GeoInformation - Département Payload Data & 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 - guillaume.pas...@c-s.fr -- -- 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.