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nick | 21 Jun 2012 21:36

More images that make hugin freeze

Here are two images that make hugin go to a nonresponsive white screen after alignment. I'm using the latest windows 7 64 bit version from the web site version 2011.4.0.cf9be9344356

It seems like it has a problem aligning images that are similar and don't have a lot of straight lines? I'm experimenting with using this for making HDR images of clouds which seem to give it problems.

Thanks for your help,
Nick

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Terry Duell | 22 Jun 2012 00:52

Re: More images that make hugin freeze

Hello Nick,

On Fri, 22 Jun 2012 05:36:15 +1000, nick <lucidology77 <at> gmail.com> wrote:

> Here are two images that make hugin go to a nonresponsive white screen
> after alignment. I'm using the latest windows 7 64 bit version from the  
> web
> site version 2011.4.0.cf9be9344356
>
> It seems like it has a problem aligning images that are similar and don't
> have a lot of straight lines? I'm experimenting with using this for  
> making
> HDR images of clouds which seem to give it problems.

This is probably not going to be any help to you, but Hugin 2011.5.0-5865  
doesn't have any problems with these images.
I used rectilinear lens and 50 deg HFOV, and also tried 14mm and a crop  
factor of 2.
It does look like there is a bug lurking in the version you are using,  
which may still be present in my build, but I'm not triggering it, or it  
only shows up in Windows.
If you haven't already done so, I would suggest experimenting a bit more  
with the initial 'camera and lens data' when loading your images, to see  
if you can find values that are acceptable, and values that trigger the  
problem...along the lines of the last problem that you had where using  
14mm and crop factor of 2 seemed to work OK.
Instead of focal length and crop factor, you should be able to use only a  
HFOV, and almost any reasonable value should work.
What works OK and what triggers your problem may be helpful in tracking  
down what is causing this problem.

Cheers,
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Regards,
Terry Duell

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Greg 'groggy' Lehey | 22 Jun 2012 02:46

Re: More images that make hugin freeze

On Thursday, 21 June 2012 at 12:36:15 -0700, nick wrote:
> Here are two images that make hugin go to a nonresponsive white
> screen after alignment. I'm using the latest windows 7 64 bit
> version from the web site version 2011.4.0.cf9be9344356

Like Terry, I don't have any trouble aligning these images.  I'm an
older version of Hugin running on FreeBSD.

> It seems like it has a problem aligning images that are similar and
> don't have a lot of straight lines?

I can confirm that.  I frequently have problems with panoramas that in
part are very similar to these images.  In addition, these two images
are different enough (position of clouds and trees) to make control
point detection very difficult.

One thing you haven't said is which control point detector you're
using.  Whatever it is, it makes sense to try alternative detectors.
FWIW I did this with panomatic, which I find the best for this kind of
subject.

Greg
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Tduell | 22 Jun 2012 02:57

Re: More images that make hugin freeze


Greg 'groggy' Lehey wrote:
[snip]
> Like Terry, I don't have any trouble aligning these images.  I'm an
> older version of Hugin running on FreeBSD.
>
> > It seems like it has a problem aligning images that are similar and
> > don't have a lot of straight lines?
>
> I can confirm that.  I frequently have problems with panoramas that in
> part are very similar to these images.  In addition, these two images
> are different enough (position of clouds and trees) to make control
> point detection very difficult.
>
> One thing you haven't said is which control point detector you're
> using.  Whatever it is, it makes sense to try alternative detectors.
> FWIW I did this with panomatic, which I find the best for this kind of
> subject.

Nick, what happens if you switch off the vertical line detection?
(Preferences > Assistant > detect vertical lines)

I am using CPfind, which works OK here if these input images are
specified as rectilinear...but no points found when I experimented
with other input projections.

Cheers,
Terry

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nick | 23 Jun 2012 06:26

Re: More images that make hugin freeze

Thanks for your help.

It seems like the windows version is simply out of date compared to the linux version so I won't bother posting any more crash reports.

MS ICE does almost as good a job as hugin and it's never crashed on me so I think I'll just start using that until I see the windows version of hugin is up to date and possibly fixed.

Thanks,
Nick

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Terry Duell | 23 Jun 2012 06:37

Re: More images that make hugin freeze

Hell Nick,

On Sat, 23 Jun 2012 14:26:49 +1000, nick <lucidology77 <at> gmail.com> wrote:

> Thanks for your help.
>
> It seems like the windows version is simply out of date compared to the
> linux version so I won't bother posting any more crash reports.

Your Windows version looks like it is pretty close to the current release.
I run local builds from the development source, but the problem may be one  
that occurs on Windows and not Linux for some reason, and hence may be  
still lurking.

>
> MS ICE does almost as good a job as hugin and it's never crashed on me  
> so I
> think I'll just start using that until I see the windows version of hugin
> is up to date and possibly fixed.

If it is a bug that only shows up in the Windows builds, the problem may  
not get attended to if there is no bug report and info on what causes it.
If you haven't already done so, I would suggest it would be helpful if you  
posted a bug report, along with the sample images and what steps cause  
your problem, and what steps work.

Hugin bugs can be reported here <https://bugs.launchpad.net/hugin>

Cheers,
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Regards,
Terry Duell

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Greg 'groggy' Lehey | 23 Jun 2012 08:23

Re: More images that make hugin freeze

On Friday, 22 June 2012 at 21:26:49 -0700, nick wrote:
> Thanks for your help.
>
> It seems like the windows version is simply out of date compared to the
> linux version so I won't bother posting any more crash reports.

Without giving more details, you can't say that.

> MS ICE does almost as good a job as hugin and it's never crashed on
> me so I think I'll just start using that until I see the windows
> version of hugin is up to date and possibly fixed.

Hugin has never crashed on me.  As Terry says, if you're having
problems, there are people who are willing to help.  But for that you
need to give more details.

Greg
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nick | 24 Jun 2012 04:48

Re: More images that make hugin freeze

On Saturday, June 23, 2012 2:23:05 AM UTC-4, Groogle wrote:

On Friday, 22 June 2012 at 21:26:49 -0700, nick wrote:
> Thanks for your help.
>
> It seems like the windows version is simply out of date compared to the
> linux version so I won't bother posting any more crash reports.

Without giving more details, you can't say that.

Sure I can. I gave the precise files that cause the crash and the exact steps needed to reproduce the error along with the exact operating system and hugin version I'm using.

Load those images and hit align. It crashes. What more do you need?

> MS ICE does almost as good a job as hugin and it's never crashed on
> me so I think I'll just start using that until I see the windows
> version of hugin is up to date and possibly fixed.

Hugin has never crashed on me. As Terry says, if you're having
problems, there are people who are willing to help. But for that you
need to give more details.

Hugin has crashed spectacularly in a wide variety of ways on me, often when playing around with different projections. I haven't bothered posting about those because the bugs I've posted so far haven't been looked at.

Maybe in a month or two I'll check out hugin again and see if it's got a new version. If so I'll post the bugs I find to the bug tracker that was linked to in this thread since posting bugs to this group doesn't seem very fruitful.

Thanks for your help,
Nick

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Greg 'groggy' Lehey | 24 Jun 2012 06:54

Re: More images that make hugin freeze

On Saturday, 23 June 2012 at 19:48:15 -0700, nick wrote:
>
> On Saturday, June 23, 2012 2:23:05 AM UTC-4, Groogle wrote:
>>
>> On Friday, 22 June 2012 at 21:26:49 -0700, nick wrote:
>>> Thanks for your help.
>>>
>>> It seems like the windows version is simply out of date compared to the
>>> linux version so I won't bother posting any more crash reports.
>>
>> Without giving more details, you can't say that.
>
> Sure I can. I gave the precise files that cause the crash and the exact
> steps needed to reproduce the error along with the exact operating system
> and hugin version I'm using.

Your version is between mine and Terry's IIRC.

> Load those images and hit align. It crashes.

It works for me.  It works for Terry.

> What more do you need?

I asked you for the control point detector, and also to try
alternatives.  In case you're not sure how to do that, go to File ->
Preferences -> Control Point Detectors.

>>> MS ICE does almost as good a job as hugin and it's never crashed on
>>> me so I think I'll just start using that until I see the windows
>>> version of hugin is up to date and possibly fixed.
>>
>> Hugin has never crashed on me.  As Terry says, if you're having
>> problems, there are people who are willing to help.  But for that you
>> need to give more details.
>
> Hugin has crashed spectacularly in a wide variety of ways on me,
> often when playing around with different projections. I haven't
> bothered posting about those because the bugs I've posted so far
> haven't been looked at.

The bugs you have reported here are insufficiently documented.  When
people try to help you, you don't answer.

> Maybe in a month or two I'll check out hugin again and see if it's
> got a new version. If so I'll post the bugs I find to the bug
> tracker that was linked to in this thread since posting bugs to this
> group doesn't seem very fruitful.

Posting bugs to the bug tracker won't help much either unless you give
more detail.

Another observation: the images you supplied weren't the easiest for
Hugin to handle.  The clouds ones had significant parallax, and the
studio ones had both parallax and focus issues.  Clearly it's not your
intention to use these as finished photos, but it would be interesting
to know if you have the same issues with photos you really need to
process.

Greg
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