Fwd: Hugin is driving me bonkers

[Stanley Green]

Hugin (Mac 2019.2.0.b690aa0334b5 built by Niklas Mischkulnig) is driving me crazy.

I am trying to make a simple linear panorama out of three images and I am getting the error messages

The commonality between the images are obvious, yet Hugin is unable to find them. 

Incidentally, other than a discontinuity artifact in the center of the pano (on the horizon) Affinity photo is not having any problems creating the panorama.

[Klaus Foehl]

Hello,

Are you familiar with the concept of CP - Control Points? Did you provide Control Points? I case you are new to panoramics and hugin, please familiarise yourself with the concepts (RTFM in a friendly way) first.

Best regards

Klaus

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[Stanley Green]

Thank you for your suggestion.

In case you did not notice, the same three images were used successfully to stitch a panorama in Affinity without manually adding control points.

On Jul 14, 2021, at 9:25 AM, Klaus Foehl <klaus...@gmail.com> wrote:

Hello,

Are you familiar with the concept of CP - Control Points? Did you provide Control Points? I case you are new to panoramics and hugin, please familiarise yourself with the concepts (RTFM in a friendly way) first.

Best regards

Klaus

On 14.07.21 12:11, 'Stanley Green' via hugin and other free panoramic software wrote:

Hugin (Mac 2019.2.0.b690aa0334b5 built by Niklas Mischkulnig) is driving me crazy.

I am trying to make a simple linear panorama out of three images and I am getting the error messages

<Screen Shot 2021-07-14 at 4.33.48 AM.png>

<Screen Shot 2021-07-14 at 4.11.08 AM.png>

The commonality between the images are obvious, yet Hugin is unable to find them. 

<Screen Shot 2021-07-14 at 4.26.15 AM.png>

Incidentally, other than a discontinuity artifact in the center of the pano (on the horizon) Affinity photo is not having any problems creating the panorama.

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[Lukas Jirkovsky]

On Wed, 14 Jul 2021 at 15:39, 'Stanley Green' via hugin and other free
panoramic software <hugi...@googlegroups.com> wrote:
>
> Thank you for your suggestion.
> In case you did not notice, the same three images were used successfully to stitch a panorama in Affinity without manually adding control points.

In case you did not notice, Hugin is not Affinity. Which I'm pretty
sure has something similar to Hugin's control points in the
background.

Did you try to create the control points using "Align"? If yes, what
was the error?

Lukas

[Stanley Green]

Thank you. Yes, Affinity uses control points very similar to Hugin.
I did not bother to insert CPs because I was only trying to point out that Hugin was having trouble finding the cPs, but Affinity had no such problem.
Being able to use Hugin is still my choice (when it works) because it has fewer artifacts.

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[Greg 'groggy' Lehey]

On Wednesday, 14 July 2021 at 16:35:03 -0400, Hugin developers list wrote:
> Thank you. Yes, Affinity uses control points very similar to Hugin.
> I did not bother to insert CPs because I was only trying to point out that Hugin was having trouble finding the cPs, but Affinity had no such problem.
> Being able to use Hugin is still my choice (when it works) because it has fewer artifacts.

As Klaus Foehl says, you might like to read the instructions. If you
don't bother to use the product the way it is intended, you can't
complain about it not doing what you want. My guess is that Affinity
automatically does what it thinks you want, while Hugin gives you a
choice. It even tells you what to do in the first of your images. If
you don't make the choice, it won't do what you hope.

Please try to use it as intended and report your results.

Greg
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[Stanley Green]

Thanks for all your help

Sent from my iPhone

> On Jul 14, 2021, at 7:35 PM, Greg 'groggy' Lehey <groo...@gmail.com> wrote:

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[Robb Campbell]

So . . . does anyone have any information on this? I have very much the same problem. Hugin (2019, Mac) can't load images into a preview the way it could before (2012, Mac). The individual images are scrambled like a Fifteen Puzzle and the Layout has a bunch of wrong links. Apparently a failure of automatic control point detection, even though they look super obvious. My only "solution" was to pull out my old Mac and yeah, Hugin 2012 made the pano with no problem. 

Maybe the problem was the two varieties of Preview: Fast Preview and Preview? The Fast Preview flaked out after a while (mostly blank gray), so maybe the Mac / OpenGL / something is incompatible? I know about control points and I've read lots of Hugin documentation. It's hard chasing down possible problems in Hugin because the whole project is pretty Jeremy Bearimy (plate of spaghetti).   

If anyone sees anything in here you can suggest about, thanks. If not, silence is fine. Thanks, Robb

[David W. Jones]

Hmm, 2019? I don't have a Mac, but current version of Hugin is 2020:

http://hugin.sourceforge.net/releases/2020.0.0/en.shtml

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[Robb Campbell]

Thanks, I didn't notice that mine is actually the 2019. I can find a source code / tarball for the 2020 version (I'm probably using the wrong words), but not a binary / executable.

[David W. Jones]

I seem to recall that the Hugin team doesn't have anyone with a Mac
build environment?

[Robb Campbell]

I don't know.

[David W. Jones]

Does this sound like your issue?

"Fixes fast preview on HiDPI screens under GTK+3 and MacOS."

From the list of changes since v2019.2.0

[Robb Campbell]

I saw that. That could be part of it. I get weird failure to see what are apparently obvious potential control points. I also get final panoramas with black panes.

[David W. Jones]

I compiled Hugin 2020 on Debian Linux here and use it now. Comments
interspersed below.

On 8/26/21 8:03 AM, Robb Campbell wrote:

> I saw that. That could be part of it.

It sounded like a part of the problem.

> I get weird failure to see what are apparently obvious potential
> control points.

I'm working on a couple of sea horizon panoramas, shot from shore. There
are clouds, with anchored boats and anchored buoys in the water. Hugin
2020's cpfind doesn't seem to find control points on the boats or buoys,
but happily finds them on clouds.

> I also get final panoramas with black panes.

Possibly a colorspace conversion issue? Or alignment? I think it also
shows up if a combination of masks excludes that part from every image.

Or do you mean an entire black frame?

[Robb Campbell]

Sorry if I explained poorly, and pardon my delay. 

I believe I do mean an entire black rectangular (or, you know, warped rectangular) frame-- as if one of the 38 JPEGs I shot (to make one sphere) was replaced with an all-black JPEG just before Hugin made the final pano. In the final pano the black is shaded (I think blended is the term) into the surrounding panes/frames. And when I re-run the final pano-making I get different panes/frames turning back, which I know sounds weird.

I believe that I know what masks are and I feel sure I have never used one. Unless it's something that can happen automatically, without me knowing it, which I doubt.

And I continue to use my old 2012 installation, and it keeps working just fine. Not sure what to tell you.

[Bruno Postle]

This is a long-standing bug in enblend that appears when the seam lines get more complex.

Workarounds are to change some aspect of the panorama a small amount, for me, just rearranging the order of the input photos generally works ok. Alternatively, the internal Hugin blender doesn't have as many features, but also doesn't have this problem.

--
Bruno

[Robb Campbell]

Thanks. To my kids I call this jiggling the handle. I will try that.