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2935Re: [PanoToolsNG] Re: Construction Project

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  • Roger D. Williams
    Oct 2, 2006
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      That's true, John. I have solved difficult ones using that technique.
      But I'm pretty careful leveling my camera/head and often find the
      simple PTgui horizontalisation function is good enough.

      Roger W.

      On Mon, 02 Oct 2006 17:05:59 +0900, John Houghton
      <j.houghton@...> wrote:

      > --- In PanoToolsNG@yahoogroups.com, "Roger D. Williams" <roger@...>
      > wrote:
      >> It is usually possible to get the horizon right when working with
      >> PTgui and it is well worth doing. Was there a problem with using
      >> the horizon leveling function? You do need to re-optimize
      >> afterwards.
      > Automatic levelling features will not usually guarantee to accurately
      > level the panorama. Their success depends upon how accurately the
      > panorama head was levelled. In a subject like this, accurate
      > levelling can be performed in no more than a couple of minutes using
      > the optimizer by adding some vertical line (t1) control points.
      > (Note that you must use the Panorama Tools optimizer, though, as
      > PTGui's optimizer doesn't support t1,t2 and tn points). You can also
      > level the finished panorama image using exactly the same technique.
      > There's no shortage of tutorials for guiding you through these
      > processes:
      > http://www.dffe.at/pano360/pano-horizont-360_en.html
      > http://wiki.panotools.org/Leveling_a_Finished_Panorama
      > http://homepage.ntlworld.com/j.houghton/levtut.htm
      > John

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