Re: [gdal-dev] gdaldem definitions

2014-09-24 Thread Dominik Schneider
Thanks Even! Dominik Schneider o 303.735.6296 | c 518.956.3978 On Wed, Sep 24, 2014 at 5:34 AM, Even Rouault wrote: > Le lundi 22 septembre 2014 01:45:16, Dominik Schneider a écrit : > > One correction, that should have said: > > TPI "the central pixel is assigned the absolute difference betwe

Re: [gdal-dev] gdaldem definitions

2014-09-24 Thread Even Rouault
Le lundi 22 septembre 2014 01:45:16, Dominik Schneider a écrit : > One correction, that should have said: > TPI "the central pixel is assigned the absolute difference between the > central pixel of a 3x3 window and mean of all pixels within the 3x3 window" Domink, here's the relevant part of the

[gdal-dev] gdaldem definitions

2014-09-21 Thread Dominik Schneider
Hi - I was reviewing the gdaldem documentation and the definitions provided seem to differ from those in the cited article (Wilson et al. 2007) For example, TRI should be "the central pixel is assigned the mean of the absolute differences between a central pixel and its surrounding cells" TPI "the

Re: [gdal-dev] gdaldem definitions

2014-09-21 Thread Dominik Schneider
One correction, that should have said: TPI "the central pixel is assigned the absolute difference between the central pixel of a 3x3 window and mean of all pixels within the 3x3 window" Dominik Schneider o 303.735.6296 | c 518.956.3978 On Sun, Sep 21, 2014 at 5:36 PM, Dominik Schneider < dominik