app->SetParameterDescription(oss.str(),"The zone number ranges from 1 to 60 and allows to define the transverse mercator projection (along with the hemisphere)");
app->SetParameterDescription(oss.str(),"The transverse mercator projections are defined by their zone number as well as the hemisphere. Activate this parameter if your image is in the northern hemisphere.");
"This code is a generic way of identifying map projections, and allows to specify a large amount of them. See www.spatialreference.org to find which EPSG code is associated to your projection;");