confusion matrix with Orfeo Toolbox

[@joshreyes60]

I would like to know more about the control file and how to create one. I noticed that it uses points. I have polygons as my control samples. Should I convert those polygons to points?

[@MrGIS]

Split dataset to learn and control samples. You can use polygon.

[@albaloven5737]

Thanks for the tutorial! However, when I create a file name for the matrix output it says "the file name is not valid". Is there any specialized file format that I have to include?

[@MrGIS]

Actually no you need to type file name without any extension.

[@albaloven5737]

@@MrGIS Okay, however now I face another problem. After I input the vector data and run the process, it says; (FATAL) ComputeConfusionMatrix: itk::ERROR: Failed to open GDALDataset file D:\1. :
Do you know how to fix this? Thanks in advance

[@MrGIS]

You have write full dataset name with extension like file.shp. Most suitable is shape file.

[@albaloven5737]

@@MrGIS I did, I made the validation point previously, however it still doesn't work?

[@albaloven5737]

@@MrGIS The type of my sample point is AutoCAD Shapefile Source meanwhile yours is DWG Trueview Shapefile. Is it the cause of the error? If so, how did you create the sample point? Thanks again!