Re: Enblend bundled with Hugin no longer supports -m

There should be a file called "enblend_noopenmp.exe" in the Hugin bin
directory that has OpenMP disabled and therefore has image cache. You
can either rename it "enblend.exe" or set your Hugin preferences to
use an alternative Enblend program and select that file.

Matthew

On Jan 30, 5:38 am, Stratty <unitgen...@gmail.com> wrote:
> Hi guys,
>
> I'm not sure when this might have started, if indeed it was
> intentional, but it seems the current hugin Windows x32 bundle comes
> with a version of enblend that is compiled without image cache,
>
> "enblend: warning: option "-m" has no effect in this version of
> enblend"
>
>  so those of us with with only a few gig of ram can run into out of
> memory errors.
>
> I was wondering if this was intentional i.e. enblend has moved on from
> when this functionality was required? I know with x64 that larger
> amounts of ram are less of an issue and more people are moving to x64.
> I do realise I can still get enblend from the enblend site, and that
> still supports -m, but I would assume the latest enblend bundled with
> hugin has various bug fixes etc in it, which would make it more
> desireable to have if possible.
>
> Regards,
> Stratty ;)

Re: Horizontal lines in large panoramas

On 01/30/2012 10:18 PM, Rogier Wolff wrote:
> On Mon, Jan 30, 2012 at 06:21:53PM -0200, Carlos Eduardo G. Carvalho (Cartola) wrote:
>
>> Is it possible to increase the system swap area (virtual memory) and
>> tell enblend to use more memory? This way you will use your disk
>> managed by the system and enblend will think he has plenty of
>> memory.
>
> This trick will work, but it will run out of address space at around
> 3G of memory required for the process. So even if you have an PAE
> enabled 32-bit system with 16G RAM and 32G swap, you'll only be able
> to use 32-bit addressing, which gives you max 3G of adressing space in
> your userspace process.

With 64-bit processors so cheap, why bother with a 32-bit processor 
(with or without PAE)?

-- 
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gnomenomad <at> gmail.com
wandering the landscape of god
http://www.cafepress.com/otherend/

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Re: Re: More Help needed with Enfuse within Hugin

On 01/31/2012 12:39 AM, kfj wrote:

> On 31 Jan., 09:01, Gnome Nomad wrote:
>
>> Hmmm, on my Minolta, I can set the bracketing to shoot the median
>> exposure in the middle: -2, 0, +2. Maybe your Canon can do the same?
>
> no it cannot.

Bummer.

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wandering the landscape of god
http://www.cafepress.com/otherend/

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Can Hugin be configured to stitch together a high number of of overlapping 360x192 images?

I am trying to stitch together screenshots from a game to form a map.
Each image is of pretty low resolution (360x192) and they're taken in
chronological succession and would, bar a small amount of visual noise
and lightness difference, form 1:1 matches. There is a huge number of
images (400+).

An example of doing this manually in GIMP is available here:
http://dl.dropbox.com/u/10190786/map3.xcf

I'm trying to get Hugin to do this, but so far have only met limited
success. The main issues are:
- failure to actually get any sort of arrangement
- getting stuck at the cropping step (which i don't want anyhow)
- long time spent in photometric optimization

The only success i've had was with ~10 images, where the result was
farly good, with the only downside being it being downscaled to ~50%.

Are there known good settings for such a situation?

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Re: Horizontal lines in large panoramas

Thanks Roger for the mini howto on multiblend.


2012/1/31 Harry van der Wolf <hvdwolf <at> gmail.com>

What Roger already stated for enblend hitting the 3GB memeory limit on 32bit, is the same for multiblend but worse.

And I did indeed hit a memory limit trying to use multiblend to stitch the same panorama:

App. five minutes into the process: "Error: Couldn't allocate enough memory to load image"

So I guess I'm at the point where I should install a 64 bit OS instead of my 32 bit OS

Thomas

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Re: Can Hugin be configured to stitch together a high number of of overlapping 360x192 images?

Ok, after playing around with it for a night, i found my biggest
problem: It keeps trying to rotate the images, while they should
actually stay exactly as they are. Can i force hugin to skip the steps
that attempt rotation? Maybe by futzing with the EXIF values to give
them all the same alignment?

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Re: Re: Can Hugin be configured to stitch together a high number of of overlapping 360x192 images?

Re: Can Hugin be configured to stitch together a high number of of overlapping 360x192 images?

On 1 Feb., 01:04, Christian Walde <walde.christ...@googlemail.com>
wrote:
> I am trying to stitch together screenshots from a game to form a map.
> Each image is of pretty low resolution (360x192) and they're taken in
> chronological succession and would, bar a small amount of visual noise
> and lightness difference, form 1:1 matches. There is a huge number of
> images (400+).

If you know the position of the images, you can write a PTstitcher
script for the stitching, and stitch it with nona (hugin's replacement
for PTstitcher).

http://wiki.panotools.org/Nona
http://wiki.panotools.org/PTStitcher

I've used this technique for stitching together tiles forming a map.
This is probably easier than doing it in hugin (you'd spend a long
time putting all your 400 tiles in place)

But you may be better off with VIPS: Have a look at

http://www.vips.ecs.soton.ac.uk/index.php?title=VIPS

VIPS is like a speadsheet for images, with formulas and all, and it's
just the tool you want to automatically assemble large numbers of
tiles of something into a bigger picture. And you really don't want
any 'photo'-like stuff on your screenshots.

If you insist on doing it in hugin, do it as a mosaic and don't use
the assistant.

Kay

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Re: Re: More Help needed with Enfuse within Hugin

On 01/02/12 07:31, Gnome Nomad wrote:
> On 01/31/2012 12:39 AM, kfj wrote:
>
>> On 31 Jan., 09:01, Gnome Nomad wrote:
>>
>>> Hmmm, on my Minolta, I can set the bracketing to shoot
>>> the median
>>> exposure in the middle: -2, 0, +2. Maybe your Canon can
>>> do the same?
>>
>> no it cannot.
>
> Bummer.
>
I guess it depends on the Canon model.
You can set the bracketing sequence to 0, -, + or -, 0, + 
with Custom Function I-5 on the Canon 7D.

Doug

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Re: Re: Can Hugin be configured to stitch together a high number of of overlapping 360x192 images?

On Wed, 01 Feb 2012 12:16:12 +0100, kfj <_kfj <at> yahoo.com> wrote:

> If you know the position of the images, you can write a PTstitcher
> script for the stitching, and stitch it with nona (hugin's replacement
> for PTstitcher).

Sadly i don't know the positions. The images are gained by recording a video, walking over a map and then
extracting frames from the video in regular intervals. The intervals are chosen so there is always
overlap between the images and it is not feasible to capture the images in an edge to edge manner.

So the issue is that, to assemble the images, i need to do some analysis to find overlap points and from those
match their positions up. VIPS can't do that, right?

-- 
With regards,
Christian Walde

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