Greetings I'm a ORFEO TOolbox user and I realized, through a few messages from Antonio and Hamish, that GRASS has an addon module, called i.pr, that performs a few classification methodologies.
The i.pr.training uses a interactive (based on Xterminals) and a non-interactive based on (citing Description) The second option for generating the training sample file can be done non-interactively. This is done by specifying a GRASS sites file. This file should represent the locations of training samples and ought to have been previously generated either by digitising (*v.digit<file:///C:/Data/GISDataBase/i.pr/i.pr_training/v.digit> *) or else by *v.in.ascii<file:///C:/Data/GISDataBase/i.pr/i.pr_training/v.in.ascii> *. Features will be extracted for these locations in a similar fashion as previously described. The class will be assigned to the examples based on the information stored in the sites file. What is a GRASS sites file? How can I obtain this? Thanks best regards, Luisa
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