Hi Martin, On Wed, Apr 1, 2009 at 9:11 AM, Martina Schäfer <[email protected]> wrote: > Hi everybody! > I'm a rather new GRASS user and encountered problems using i.rectify to > rectify aerial images taken from helicopter.
[Just a note: if you have approx. camera info and a DEM, you can even ortho-rectify them with i.ortho.photo, see M. Neteler, D. Grasso, I. Michelazzi, L. Miori, S. Merler, and C. Furlanello, 2005: An integrated toolbox for image registration, fusion and classification. International Journal of Geoinformatics, 1(1), pp. 51-61 http://ojs.info.gscc.osaka-cu.ac.jp/IJG/index.php/IJG/article/view/103/42 ] > I've followed the instructions > and everything's working fine except that the red band is not included. In > the output it says : > Rectified input file NN1_2.red will be saved as NN1_2.red 1257 I see a suspicious white space before 1257. Where does it come from? Could it be that it crept in when defining the group? > unable to find NN1_2.red1257 in permanent. > > it nevertheless continues with: > Rectify NN1_2.red....into NN1_2.red1257... > complete > > the green and blue band are rectified without problems and look fine. > Any help is greatly appreciated!! In the mapset there is a group/ directory in which the group is defined (ASCII file). The easiest way is to check there/fix if the red channel was defined properly. BTW: which GRASS version and which operating system? best Markus -- Markus Neteler Foundation Edmund Mach (FEM) - Research and Innovation Centre Environment and Natural Resources Area GIS and Remote Sensing Unit, Trento, Italy Web: http://gis.fem-environment.eu/ _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
