One more suggestion - check here https://www.orfeo-toolbox.org//packages/OTBCookBook.pdf page 278
On Friday, 11 September 2015 15:09:15 UTC+3, Hristo Nikolov wrote: > > Dear Thayse , > > Could you please describe the way you use OTB? > My experience with OTB is as part of QGIS. > I could say that the output files generated by > training procedure are with confusion matrix and > the model file. Also in the log window of the GUI > have the conf. matrix as well. > > Good luck > Hristo > > > On Thursday, 27 August 2015 09:48:25 UTC+3, Thayse Nery wrote: >> >> Hi all, >> >> I am doing an object based Land Use changes classification and I have my >> sample training with almost 20000 pixels. I used the TrainImagesClassifier >> and selected the ratio between training and validation samples to be 70% >> training and 30% validation. >> >> As we know, this tool generates 2 files, one is the transition matrix for >> the validation set and the other one is .txt file for the training set. I >> would like to have a transition matrix also for my training set. But since >> its generates only a text file, I am not able to Compute a Confusion Matrix >> for it. I can use this text file only for the Image Classification but I do >> not know how to access the performance for the training sample based on the >> F-score, precision, recall and overall accuracy. >> >> I would like to know if it is possible to* calculate a confusion matrix >> for this training samples*. I could have used my original shapefile to >> do that, but since the TrainImagesClassifier uses some calculation such >> as the maximal size of the available validation sample list per class will >> be equal to the surface area of the smallest class multiplied by the >> validation sample ratio, I do not know exactly which samples were selected >> for the training and validation samples. >> >> Thanks for any help! >> >> Cheers, >> Thayse Nery >> > -- -- 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.
