Thanks for the tips I tried with 20, 50 and 100 and it seems that between 20 and 50 there is not so much differences in slope area contrary to 100m that seems to show more difference.
In addition it's really fast with 50 !!! I will compare with snap just to know differences (results and time) but for now it's realy very good to have this tools for S1. In addition on the test dataset (even if I set 128mo of ram) it use at maximum near 1.7 Go of ram so it's also very nice. At the end of my test, probably this week, I will give my feedback. Did you now if it's planned to add new feature related to S1 orthorectification like an output raster that contain local incidence angle that should be usefull to mask very or very low slope ? Thanks again for the OTB work !!! On Tuesday, August 9, 2016 at 8:48:40 AM UTC+2, Julien Michel wrote: > > Hi Cedric, > > One more tip : you should change default value of -opt.gridspacing > parameter (see last warning of the logs) : the default is 4 meters, it > will generate a deformation grid that is finer than the input image grid > which is overkill (default value has been set when OTB was mainly > focused on optical VHR). You can use something like 4 time the output > spacing (40) or even set it to the spacing of the input DEM. > > Regards, > > Julien > > Le 09/08/2016 à 01:45, CedricL a écrit : > > I reply to me and don't erase my question even if it was easy to solve. > > > > Indeed I thought that original output of otbcli_DownloadSRTMTiles > > could be used for orthorectification. > > > > However, the solution is easy, just unzip the dem files. > > > > I will search how to unzip it in python script whatever linux or > > windows but if you know how to do it for both OS, I am interested. > > > > Best > > -- > > -- > > 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] > <javascript:> > > To unsubscribe from this group, send email to > > [email protected] <javascript:> > > 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] <javascript:> > > <mailto:[email protected] <javascript:>>. > > For more options, visit https://groups.google.com/d/optout. > > > -- > Julien MICHEL > CNES - DCT/SI/AP - BPI 1219 > 18, avenue Edouard Belin > 31401 Toulouse Cedex 09 - France > Tel: +33 561 282 894 - Fax: +33 561 283 109 > > -- -- 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.
