Re: [otb-users] traitement d'image avec OTB 5.10

[Guillaume Pasero]

Hi Jérôme, This mailing list is in english so my answer will be in english as well. I guess every one has its own recipes to select training areas. Your goal is to have training areas that are pure (only 1 class per region), and that show enough diversity to characterize your classes all over the scene. After doing the training step, you can validate the model with a  ground truth and compute the confusion matrix. See OTB applications like TrainImagesClassifier and ComputeConfusionMatrix. Also more information here : https://www.orfeo-toolbox.org/CookBook/recipes/pbclassif.html#validating-the-classification-model Regards, Guillaume On 04/19/2017 12:55 PM, Jérôme Loukou wrote: Bonjour a tous je voudrais avoir des orientations sur comment choisir les sites d'entrainement et avoir les différents statistiques (séparabilité, matrice de confusion) -- -- 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.