Strange lines

[Gérald Brosseau]

On a fresh install of version 2011.4.0.cf9be9344356 under Kubuntu .

I have strange lines on the final output

Exemple :

http://www.gb-photodujour.com/PRIVE/2013-01-05-02-ERROR.jpg

[Greg 'groggy' Lehey]

This looks very much like something I had 6 months ago. I describe
them at http://wwww.lemis.com/grog/diary-jun2012.php#striped-panorama
and http://wwww.lemis.com/grog/diary-jul2012.php#enblend-revisited .
I didn't really find a reason for them, but with a newer version of
enblend (also 64 bit instead of 32 bit) they were gone. At the time I
wondered if it was related to memory pressure.

This isn't a solution for you, of course, but maybe it will give you
some ideas about what the problem is.

Greg
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[Thomas Pryds]

This looks like a problem that others have run into, too. Have a look at e.g.
https://groups.google.com/forum/m/?fromgroups#!topic/hugin-ptx/mVpE3yaEj8Q

I had the problem, too, which I solved by switching from a 32 bit operating system to a 64 bit.

Thomas

[Gnome Nomad]

On 01/06/2013 06:40 PM, Greg 'groggy' Lehey wrote:

> On Sunday, 6 January 2013 at 22:33:09 -0500, G�rald Brosseau wrote:
>> On a fresh install of version 2011.4.0.cf9be9344356 under Kubuntu .
>>
>> I have strange lines on the final output
>>
>> Exemple :
>>
>> http://www.gb-photodujour.com/PRIVE/2013-01-05-02-ERROR.jpg
>
> This looks very much like something I had 6 months ago. I describe
> them at http://wwww.lemis.com/grog/diary-jun2012.php#striped-panorama
> and http://wwww.lemis.com/grog/diary-jul2012.php#enblend-revisited .
> I didn't really find a reason for them, but with a newer version of
> enblend (also 64 bit instead of 32 bit) they were gone. At the time I
> wondered if it was related to memory pressure.
>
> This isn't a solution for you, of course, but maybe it will give you
> some ideas about what the problem is.
>
> Greg

IIRC, the problem was traced to the amount of memory available to
enblend, or being used by enblend, (or something like that). I thought
there was some setting in either Hugin or enblend that would increase
that amount of memory?

I use Hugin (same version) on both 32-bit (w/2GB memory) and 64-bit
(w/12GB memory) Linux, and haven't encountered the problem. But maybe my
panos aren't big enough to be pushing the memory limits here.

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[Gérald Brosseau]

I'm now trying with more memory alocated to enblend, I have a quite big
system so I'm giving to enblend 20gb of memory just to see if it solve
my problem ....

I'll post the result ...

Thanks to all ...


Le 2013-01-07 03:12, Gnome Nomad a �crit :

[Andreas Metzler]

Gnome Nomad <gnome...@gmail.com> wrote:
[...]

> IIRC, the problem was traced to the amount of memory available to
> enblend, or being used by enblend, (or something like that). I thought
> there was some setting in either Hugin or enblend that would increase
> that amount of memory?

If enblend is built with image-cache it should be able to handle big
images even with huge panos. If not, then the available amount of
memory on 32bit system can be a limiting factor.

Afaik Windows and Mac binaries often do not use image-cache, as it can
only be enabled if OpenMP (multi processor support) is disabled.

> I use Hugin (same version) on both 32-bit (w/2GB memory) and 64-bit
> (w/12GB memory) Linux, and haven't encountered the problem. But maybe my
> panos aren't big enough to be pushing the memory limits here.

At least on Debian/Ubuntu /usr/bin/enblend has image-cache enabled. (The
multi-processor aware /usr/bin/enblend-mp has not.)

cu andreas
--
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so grateful to you.'
`I sew his ears on from time to time, sure'

[Andreas Metzler]

Andreas Metzler <amet...@downhill.at.eu.org> wrote:
[...]

> If enblend is built with image-cache it should be able to handle big
> images even with huge panos

This should have read "... panos even with little memory"

[Gérald Brosseau]

Should I use the

enblend-mp

or the plain

enblend

on my Kubuntu 64bit with 32gb of ram ?


Le 2013-01-07 10:48, Andreas Metzler a �crit :

[Andreas Metzler]

Gérald Brosseau <ger...@gb-photodujour.com> wrote:
> Le 2013-01-07 10:48, Andreas Metzler a écrit :
[...]

>> At least on Debian/Ubuntu /usr/bin/enblend has image-cache enabled. (The
>> multi-processor aware /usr/bin/enblend-mp has not.)

> Should I use the

> enblend-mp

> or the plain

> enblend

> on my Kubuntu 64bit with 32gb of ram ?

I would suggest using the -mp variant.

[Gérald Brosseau]

I'm giving a try with :

emblend-mp -m 20480
enfuse-mp

but with

emblend -m 20480
enfuse

it came out well ... the strange lines disapear ...


Le 2013-01-07 13:25, Andreas Metzler a �crit :
> G�rald Brosseau <ger...@gb-photodujour.com> wrote:
>> Le 2013-01-07 10:48, Andreas Metzler a �crit :

> [...]
>>> At least on Debian/Ubuntu /usr/bin/enblend has image-cache enabled. (The
>>> multi-processor aware /usr/bin/enblend-mp has not.)
>> Should I use the
>> enblend-mp
>> or the plain
>> enblend
>> on my Kubuntu 64bit with 32gb of ram ?
>
> I would suggest using the -mp variant.
>
> cu andreas
>

--

G�rald Brosseau
La Photo Du Jour
(www.gb-photodujour.com)
Sur internet depuis 1998

[Gnome Nomad]

On 01/07/2013 05:48 AM, Andreas Metzler wrote:
> Gnome Nomad <gnome...@gmail.com> wrote:
> [...]
>> IIRC, the problem was traced to the amount of memory available to
>> enblend, or being used by enblend, (or something like that). I thought
>> there was some setting in either Hugin or enblend that would increase
>> that amount of memory?
>
> If enblend is built with image-cache it should be able to handle big
> images even with huge panos. If not, then the available amount of
> memory on 32bit system can be a limiting factor.
>
> Afaik Windows and Mac binaries often do not use image-cache, as it can
> only be enabled if OpenMP (multi processor support) is disabled.
>
>> I use Hugin (same version) on both 32-bit (w/2GB memory) and 64-bit
>> (w/12GB memory) Linux, and haven't encountered the problem. But maybe my
>> panos aren't big enough to be pushing the memory limits here.
>
> At least on Debian/Ubuntu /usr/bin/enblend has image-cache enabled. (The
> multi-processor aware /usr/bin/enblend-mp has not.)

Debian here, could explain why I haven't encountered the line problem.

[Gérald Brosseau]

For me it seems that using more memory for enblend, plus using
enblend-mp and enfuse-mp

solve my problem !!!


Thanks to all for the help ...



Le 2013-01-07 14:09, Gnome Nomad a �crit :

> On 01/07/2013 05:48 AM, Andreas Metzler wrote:
>> Gnome Nomad <gnome...@gmail.com> wrote:
>> [...]
>>> IIRC, the problem was traced to the amount of memory available to
>>> enblend, or being used by enblend, (or something like that). I thought
>>> there was some setting in either Hugin or enblend that would increase
>>> that amount of memory?
>>
>> If enblend is built with image-cache it should be able to handle big
>> images even with huge panos. If not, then the available amount of
>> memory on 32bit system can be a limiting factor.
>>
>> Afaik Windows and Mac binaries often do not use image-cache, as it can
>> only be enabled if OpenMP (multi processor support) is disabled.
>>
>>> I use Hugin (same version) on both 32-bit (w/2GB memory) and 64-bit
>>> (w/12GB memory) Linux, and haven't encountered the problem. But
>>> maybe my
>>> panos aren't big enough to be pushing the memory limits here.
>>
>> At least on Debian/Ubuntu /usr/bin/enblend has image-cache enabled. (The
>> multi-processor aware /usr/bin/enblend-mp has not.)
>
> Debian here, could explain why I haven't encountered the line problem.
>

--