Hello Jan Kay is right. There is no way software, just looking at an image, can tell which way is up. That requires outside information, either from a person, who can judge such things, or even better, from a sensor in the camera. Many recent cameras contain good level sensors, that can determine the vertical direction to better than one degree. Unfortunately they don't record that information in the EXIF. If they did, automatic leveling would be pretty easy.
I've already written Canon several times asking for real level sensor output; you should too -- if they hear from enough people maybe they will do it. Meanwhile, put a level sensor in your array camera. Regards, Tom On Dec 18, 7:51 am, Jan Martin <janmar...@diy-streetview.org> wrote: > Where to find the tool? > How to reach Tim? > > Jan > > On Sat, Dec 18, 2010 at 11:28 AM, Bruno Postle > <brunopos...@googlemail.com>wrote: > > > > > At one point, during the automatic lens correction summer of code project, > > Tim had a working tool for detecting vertical lines and creating a .pto > > script for levelling. > > > It didn't work for all projections, but I think the ideal command-line tool > > would just work with single equirectangular files and calculate the > > roll,pitch,yaw rotation for correction. > > > -- > > Bruno > > > -- > > You received this message because you are subscribed to the Google Groups > > "Hugin and other free panoramic software" group. > > A list of frequently asked questions is available at: > >http://wiki.panotools.org/Hugin_FAQ > > To post to this group, send email to hugin-ptx@googlegroups.com > > To unsubscribe from this group, send email to > > hugin-ptx+unsubscr...@googlegroups.com<hugin-ptx%2bunsubscr...@googlegroups.com> > > For more options, visit this group at > >http://groups.google.com/group/hugin-ptx > > --http://www.DIY-streetview.org -- You received this message because you are subscribed to the Google Groups "Hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx