Vertical partial panorama

[Bill Brody]

I have little problem stitching full 360 panoramas, or horizontal partial panoramas, however when I try to stitch four landscape mode photographs that align vertically, the automated solution from Hugin 2013 gives me a full 360 width when the correct horizontal fov is that for a 50mm lens. I know I could solve the problem by rotating all my images before I do the stitch and then rotate the result, but that seems inelegant.  I am a painter, often working on scenes in front of very high mountains, so when I want to show my work in context, I often shoot 3 or 4 horizontal images that align vertically. cpfind generates the control points correctly. 

[Terry Duell]

Hello Bill,

On Thu, 08 May 2014 00:07:20 +1000, Bill Brody <awb...@gmail.com> wrote:

> I have little problem stitching full 360 panoramas, or horizontal partial
> panoramas, however when I try to stitch four landscape mode photographs
> that align vertically, the automated solution from Hugin 2013 gives me a
> full 360 width when the correct horizontal fov is that for a 50mm lens. I
> know I could solve the problem by rotating all my images before I do the
> stitch and then rotate the result, but that seems inelegant.

Just to be sure I understand what you are experiencing, do you mean that
the preview image, after alignment, is shown as a horizontal arrangement
with the images rotated, i.e. as if it was a horizontal alignment of
portrait shots?

Cheers,
--
Regards,
Terry Duell

[Bill Brody]

Not at all. What I get is a 360 x 180 panorama with the images in the correct rotation. The problem is that the image is stretched in the horizontal progressively toward the zenith.

Sent from Bill's iPhone

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[Terry Duell]

Hello Bill,

On Thu, 08 May 2014 13:51:42 +1000, Bill Brody <awb...@gmail.com> wrote:

> Not at all. What I get is a 360 x 180 panorama with the images in the
> correct rotation. The problem is that the image is stretched in the
> horizontal progressively toward the zenith.
>

OK.
Can you send a .pto file for the project?

[Bill Brody]

Here is the best I could do using the gui, that is without manually adjusting FOV

--
Regards,
Terry Duell

--
A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ
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--
Bill

772-618-0126

http://www.billbrodyartist.com

[Terry Duell]

Hello Bill,

On Thu, 08 May 2014 15:32:20 +1000, Bill Brody <awb...@gmail.com> wrote:

> Here is the best I could do using the gui, that is without manually
> adjusting FOV
>

Attached are two screenshots from the preview window, using your .pto and
dummy images.
Image _001 shows the distortion at the top. Is this the problem you are
seeing?
Image _002 shows the alignment after dragging the image down in the
"move/drag" tab.
There are some pretty bad control points in the image 0-1 overlap which
may be contributing to the problem.
See if the preview improves after editing out the 'crook' control points
and re-aligning. You may need to manually add some new control points for
images 0-1. Access the control points editor from the "layout" tab, click
on the red link between the two lower images.

Let's know if any of this helps.