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Re: Trouble with PTgui and wide angle lens

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  • John Houghton
    ... Jordan, one way to deal with this is to make use of the fact that all the images have the same pitch and roll values - assuming you used a tripod and pano
    Message 1 of 6 , Dec 31, 2006
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      --- In PanoToolsNG@yahoogroups.com, "Jephotog" <jephotog@...> wrote:
      >
      > I have one pano that has 2 images that do not quite overlap. Is it
      > possible to manipulate these images even though there is no overlap?
      > It is not a 360 image anyways,

      Jordan, one way to deal with this is to make use of the fact that all
      the images have the same pitch and roll values - assuming you used a
      tripod and pano head. You should start by aligning the images
      roughly by hand using the panorama editor window. Pay particular
      attention to the two that don't quite overlap, and align those as
      accurately as you can.

      Assign control points, and for the initial optimization, check the
      link pitch and roll boxes in the advanced features of the optimizer
      tab. Optimize y,r,p on all images except uncheck yaw on the two non
      overlapping images. (Also include lens parameter b for
      optimization). Then uncheck the link pitch and roll boxes. Uncheck
      y,p,r for the two non overlapping images to anchor them both, and
      optimize y,p,r on all the other images.

      After, optimization and generating the final panorama image, you can
      if necessary fine tune the alignment of the two halves of the
      panorama in Photoshop and clone over the gap. If you take care not
      to crop the image, you can input the edited image to PTGui with lens
      parameters set to the projection and fov of the panorama image to
      correct verticals and a wavy horizon. This might be necessary if the
      vertical rotation axis of the panorama head was not quite vertical.

      John
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