Re: Does Hugin have the same possibility of viewpoint correction than the new Ptgui?
- On Friday, October 12, 2007 at 10:41, Benjamin Bouville wrote:
> Few days ago, I tried the new Ptgui tool : "viewpoint correction" ->No, as far as I know. But you can work around that, at least for flat
> It's a fantastic feature to stitch panorama with a single hand-held
> Does Hugin have the same possibility of viewpoint correction than the
> new 7.3 release of Ptgui?
floors with tiles. PTGui viewpoint correction does a perspective
correction on the nadir image more or less the same like outlined in
Hence your nadir shot should be first corrected for lens distortion,
eventually remapped to rectilinear and perspective corrected. You do
this by setting vertical and horizontal line control points along the
tiles - much the same as if you wanted to perspective correct like in
the above wiki link or
Crop the result image in order to cover the whole nadir area.
This corrected image you can stitch into your ready stitched panorama
with a different lens setting (rectilinear) of course and allowing
for individual optimization of FoV, yaw, roll, pitch and eventually
This works very well with the sample images from the PTGui viewpoint
tutorial. However, the image quality for the nadir image suffers from
the two extreme remappings. PTGui does that in one step...