gmane.comp.graphics.panotools.devel

How can libpano support 3D alignment?

Thomas Sharpless — 2013-04-15T20:46:44

Hi All

I'm getting very serious about camera arrays and 3D stitching -- that is,
combining images taken from multiple positions, with general parallax
correction.  And I'm trying to make a version of libpano13 to support some
experiments.

Given a reasonable array geometry and plenty of overlap between the
cameras' fovs, it is perfectly feasible in theory to construct panoramic
views on any single center, and to choose that center pretty freely.  Of
course the 900 pound gorilla is that in order to correct parallax you need
a depth map of the scene.  But assuming that is possible, there are several
other matters that need attention.

First, defining the positions and orientations of the cameras.  With TrX,
TrY, TrZ, PT  has the means to specify the positions, and with y, p, r the
orientations.  The origin of these coordinates would no longer be the pano
center -- we haven't chosen one yet --  so let's call it the array center.
To fix the array coordinate system it is enough to designate one camera as
having

Re: supected bug in triplane_erect()

Carl von Einem — 2013-04-08T07:41:29

You're on the developer list ("a list for developers of panotools and 
the pano12 library in particular"), I guess you will get more attention 
on one of these mailing lists mentioned on
http://wiki.panotools.org/Discussion_lists

- PanoTools NG
   the main discussion list for users for panorama tools and related GUI 
tools

- hugin-ptx, discussion of Linux and Unix related panorama software and 
hugin in particular

Another hint for you to get some helping response:
Please don't simply press "Reply" in an unrelated message if you want to 
start a new thread (i.e. you want to get talk about a completely 
different topic than the original one). Also don't start an entirely NEW 
thread by just changing the subject line. In mailing lists this is 
extremely annoying for other list members.
Here is some more information about this:
http://wiki.panotools.org/User_Guidelines#Subject

So:
- try a different mailing list (one of the two mentioned above)
- start a new thread (don't just reply to some other message)
- c

Re: supected bug in triplane_erect()

Alon Carmeli — 2013-04-07T19:41:44

hi all,

i'm need to do multi-row panorama - 3 rows each with about 200 degrees each. is having more overlap between images on same row and between rows produces smother or worst panorama?

Thx,

-AC

On Apr 7, 2013, at 2:56 AM, "Kay F. Jahnke" <_kfj-/E1597aS9LQAvxtiuMwx3w< at >public.gmane.org> wrote:


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supected bug in triplane_erect()

Kay F. Jahnke — 2013-04-07T09:56:20

Hi group!

I'm currently wrapping the PT transforms (yet again...), and I've 
stumbled upon strange behaviour: when I call erect_triplane on a set of 
coordinates, and afterwards call triplane_erect on the transformed 
values, the round-trip doesn't land at the initial values. (with the 
other transforms I've tried, this is the case after applying the 
transform and then the reverse transform - e.g. with biplane, which 
seems very similar).

Ignorant of the meaning of the actual parameters, I've made 
reasonable-looking ones up: I feed mp->pn->formatParamCount as 0 (to get 
the default of formatParam[0] = 45), width as 100.0, and b as 1.0 into 
triplane_distance, and then use the MakeParams struct in the actual 
transform, going over a set of a few coordinate pairs in the range of 
+/- 1.0. The values after performing erect_triplane look 'reasonable', 
but triplane_erect seems to go off somehow, producing quite large values 
on the x coordinates.

While this may be a false alert, maybe one of the panotools d

Re: libpano13 unchecked write to fixed size buffer (LP: #1057012)

walter harms — 2013-01-20T13:57:10

The best way is to get rid of the array and use getline().
The simple fix is to use snprintf( im->name,PANO_PATH_LEN,"%s",buf);
Using LINE_LENGTH instead of PANO_PATH_LEN is a bit overheat

just my 2 cents,

re,
 wh


Am 20.01.2013 12:17, schrieb Andreas Metzler:

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libpano13 unchecked write to fixed size buffer(LP: #1057012)

Andreas Metzler — 2013-01-20T11:17:23

Hello,

this was reported on Ubuntu in
<https://bugs.launchpad.net/ubuntu/+source/libpano13/+bug/1057012>, I
am just forwarding, bug reported and diagnosed by Stephane Gourichon:

Running cpfind in a directory with a long path ( > 256 characters for
filename with full path) results in a bugffer overflow:

--------------
[...]
--- Find pair-wise matches ---
*** buffer overflow detected ***: cpfind terminated
======= Backtrace: =========
/lib/i386-linux-gnu/i686/cmov/libc.so.6(__fortify_fail+0x50)[0xf6b443c0]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(+0xe92fa)[0xf6b432fa]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(+0xe8a38)[0xf6b42a38]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(_IO_default_xsputn+0x9e)[0xf6ac947e]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(_IO_vfprintf+0x478a)[0xf6a9e1ea]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(__vsprintf_chk+0xa7)[0xf6b42ae7]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(__sprintf_chk+0x2d)[0xf6b42a2d]
/usr/lib/i386-linux-gnu/libpano13.so.2(ParseScript+0x846)[0xf6d1e536]
[...]
--------------

Try to compile hugin on mac lion mountain

info percept — 2013-01-17T08:36:55

After typing cmake ../hugin-2012.0.0 on my Terminal, I get : 

[...]

Here is a working link to Helmut Dersch Homepag...

Toprak — 2012-11-27T09:44:22

Ahoi Boys and Girls,

The link to Mr. Dersch's website is broken (on panotools.sourceforge.net).
Here is the working one:
http://webuser.hs-furtwangen.de/~dersch/

Kind regards,
Toprak



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Re: Need PanoTools panoCreatePanorama Help- Panoramas Generated Only Contain Last Image

Jim Watters — 2012-11-26T11:41:54

Nkosi,

I hope you figured out what you need to do.

The single function PTStitcher that did everything was separated into different 
tools that performed the various stages that is needed to create a panorama from 
aligned images.

A good place to learn how to stitch with panotools using the command line
http://wiki.panotools.org/Panorama_scripting_in_a_nutshell

The old way to do the blending.
PTStitcher used -buf and +buf at the end of the o lines. The -buf is used to 
indicate that the result of the warping should be saved to a buffer and +buf is 
used to indicate the previously result should be loaded and blended with the 
current warped image.
o n"image1.jpg" f2 v90 y0 p0 r0 -buf
o n"image2.jpg" f2 v90 y0 p0 r0 -buf +buf
o n"image3.jpg" f2 v90 y0 p0 r0 +buf
The -buf and +buf was deprecated and the p line of the script was used to 
indicated what format the final result would be in, using the nPICT
http://photocreations.ca/panotools/stitch.txt

I believe PTMender currently only outputs tiff files.

Curr

Re: Need PanoTools panoCreatePanorama Help- Panoramas Generated Only Contain Last Image

Thomas Sharpless — 2012-11-03T22:27:50

Hmmm.  Same here.  With scripts generated by the current PtGui (9.1.5) both
PTmender and the original PTStitcher produce 'layer' files but do not blend
them into a panorama.  However I am sure they both can.  I am not a PT
script expert so I can't spot the problem.  I'm copying this to a real
expert (Bruno). Let's see what he says.

Re: Need PanoTools panoCreatePanorama Help-Panoramas Generated Only Contain Last Image

D M German — 2012-11-02T20:03:51



then show us your scripts the input images and the results. We can then
help.

-d-mg


 Nkosi> The same thing happens when I use PTMender itself.
 Nkosi> Sent from my Verizon Wireless 4G LTE DROID

 Nkosi> dmg <dmg-a84/LA3/q2c< at >public.gmane.org> wrote:

 >> Why not just run ptmender or nona instead of creating your own program?
 >> 
 >> On Thu, Nov 1, 2012 at 9:52 PM, Nkosi Dean <nko12-Wuw85uim5zDR7s880joybQ< at >public.gmane.org> wrote:
 >>> I need some serious help with the PanoTools library pano13.dll. I am a high
 >>> school student in an internship trying to do some camera work (I know
 >>> nothing about cameras by the way). I have compiled the pano13.dll library
 >>> and am using it in a C++ project so that I can generate panoramas with it
 >>> using a provided list of images a client program will provide to it. I am
 >>> having a problem where the function called panoCreatePanorama in the
 >>> pano13.dll file does not appear to be working properly. I use the program
 >>> PTGui to create the PTMender/PTSt

Re: Need PanoTools panoCreatePanorama Help- Panoramas Generated Only Contain Last Image

Thomas Sharpless — 2012-11-02T14:13:04

Hi Nkosi

I agree with Dan German, you will  be much better off to use the Panotools
programs rather than try to build an app directly on libpano.  There is no
way we could teach you how to do that,  indeed I for one could not build
such an app today.  But  the PanoTools command line programs are very
capable of doing anything you might want -- that is what they were made
for.   Using a language such as Perl or Python to generate control scripts
and call the PT progtrams, I would think you could reach your goal.  The
PanoTools Wiki has some information on this, and Bruno Postle's collection
of Perl scripts has many excellent examples of using PanoTools for all
kinds of purposes -- highly receommended.

Good Luck,

Re: Need PanoTools panoCreatePanorama Help- Panoramas Generated Only Contain Last Image

dmg — 2012-11-02T06:55:27

Why not just run ptmender or nona instead of creating your own program?

On Thu, Nov 1, 2012 at 9:52 PM, Nkosi Dean <nko12-Wuw85uim5zDR7s880joybQ< at >public.gmane.org> wrote:

Need PanoTools panoCreatePanorama Help- Panoramas Generated Only Contain Last Image

Nkosi Dean — 2012-11-02T04:52:46

I need some serious help with the PanoTools library pano13.dll. I am a high school student in an internship trying to do some camera work (I know nothing about cameras by the way). I have compiled the pano13.dll library and am using it in a C++ project so that I can generate panoramas with it using a provided list of images a client program will provide to it. I am having a problem where the function called panoCreatePanorama in the pano13.dll file does not appear to be working properly. I use the program PTGui to create the PTMender/PTStitcher script file so that I can use the PanoTools library to stitch together images generated by the camera assembly into a panorama. However, whenever I plug in the image paths, script name and output file name into the panoCreatePanorama function, it appears to work as the function returns 0 but generates a panorama that is missing all images except the last image. How can I fix this?

Sent from my Verizon Wireless 4G LTE DROID---------------------------------------------

Re: [panotools-cvs] SF.net SVN: panotools:[1349]trunk/libpano/adjust.c

Kornel Benko — 2012-09-18T07:11:40

Am Montag, 17. September 2012 um 22:51:30, schrieb Bruno Postle <bruno-I6Uu+xO5j5OsTnJN9+BGXg< at >public.gmane.org>

I am relieved :)


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Re: [panotools-cvs] SF.net SVN: panotools:[1349] trunk/libpano/adjust.c

Bruno Postle — 2012-09-17T21:51:30


It was me that was totally confused, yes I should have committed to 
HG not SVN.

C++ panorama code sample

Philippe Le Roux — 2012-04-20T17:06:28

Hi,
I'am looking for c++ code sample running under Linux.
I'd like to combine several images into a
panorama<http://code.google.com/p/panorama-provider/>
.
At the moment, I didn't fine yet any code sample that really works....
Thanks,

Pierre
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Re: [panotools-cvs] /hgroot/panotools/libpano:merged PSD branch

D M German — 2012-03-05T19:07:51


Hi everybody,

Last week I was completely without an Internet connection.  I am glad
you decided to merge the branch. I suspect (almost) nobody bothered to
check it out.

I compiled under ubuntu 11.10 and it passed the tests. We will have to
wait and see what people thing.

I suspect not many people know that we can convert to PSD from tiff.

by the way, people should be warned that the algorithm used for it is
O(n^2) in terms of I/O. Reaaaaallly slow for multiple layers with big
images.

--dmg




 panotools-cvs> branch:     
 panotools-cvs> details:    http://panotools.hg.sourceforge.net/hgweb/panotools/panotools/hgroot/panotools/libpano/rev/0c73d8794377
 panotools-cvs> changeset:  761:0c73d8794377
 panotools-cvs> user:       Bruno Postle <bruno< at >postle.net>
 panotools-cvs> date:       Fri Mar 02 23:19:11 2012 +0000
 panotools-cvs> description:

 panotools-cvs> merged PSD branch

 panotools-cvs> diffstat:

 CMakeLists.txt                                                     |     1 +
 LocalDefs.props

Re: Compiling for iOS (armv6|armv7)

walter harms — 2012-02-23T11:42:08


Am 23.02.2012 11:48, schrieb Peter Lukan:

It would be helpful if you could post what problems occur and what version
you are using.

re,
 wh

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Compiling for iOS (armv6|armv7)

Peter Lukan — 2012-02-23T10:48:05

Hello!

I wan't to compile Panorama Tools for iOS armv6 and armv7 devices. But Im
having troubles doing that.
Do I need just pass some parameters to configure script or change the
configure script itself?

Best regards,
Peter
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Projection Que

dan suthar — 2012-02-21T09:11:13

Hi all,
What is rect_sphere_tp, erect_sphere_cp,sphere_tp_erect and sphere_cp_erect doing in math.c ? What is most basic requirement to project a source image in equirect. proj in final panorama ?

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