Hi ,

I have emailed images in 3 parts. Please have a look at it.

For CP generation I tried panomatic. Its very fast But It generates error
for this number of pictures. Autopano sift also generates errors but %p %o
%s parameters have fixed this issue. Is there any special parameters for
panomatic? I dont know how to use command line panomatic so that I can check
it.

Autopano giga is fast but I dont need speed. Hugin Image quality is best
among all other stitching softwares. So all hugs for hugin :))






On Thu, Aug 26, 2010 at 5:18 AM, Yuval Levy <[email protected]> wrote:

> Hi Emad,
>
> where have you uploaded the pictures and replied in detail?  I do not see
> anything neither on the mailing list nor in its files area.
>
> For control point generation there are a number of options.  Currently all
> of
> them (with the exception of manual generation) are external to Hugin, and
> all
> of them have drawbacks of some sort.  Hugin can call some of them from its
> user interface.  Others need to be called from the command line.  A few
> have
> their own GUI, or are even fully fledged stitching solutions.
>
> Autopano Giga, that you are using, is one option.  If it works for you,
> keep
> on using it (and buy a license).
>
> The factors to consider in deciding which tool to use include technical
> factors, legal factors, the specifics of the project and of the lens used.
>
> From a purely technical point of view, I have found panomatic to be the
> best.
> But it uses SURF and is patent-encumbered in some jurisdictions.  When I
> did
> try it, I used it from the command line to generate an initial pto file:
>
> panomatic -o project.pto *.JPG
>
> assuming all image files ends with .JPG and have been sorted so that one
> folder contains only the files for one project.
>
> Then open project.pto with Hugin and go about optimizing and pruning CPs.
>
> The above panomatic command is a brute force attack on the project.  It
> will
> take long to run, and may result in false positive that are difficult to
> detect, especially if there is symmetry in the scene.  Another option is to
> write a wrapper script around panomatic to only match time-contiguous
> pairs,
> then merge that into a single project and continue with a whole strategy.
>
> Yuv
>
> On August 24, 2010 02:40:54 am Emad ud din Butt wrote:
> > hi Yuv,
> >
> > Any update on this issue. I have uploaded pictures and also replied in
> > detail.
> >
> > One thing I also want to mention is. I am not able to create CPs using
> > Hugin. This is 5 row panorama and autopano sift generates errors in
> middle
> > of creating CPs. I used autopano giga-demo  to create CPs than generate a
> > .pto file from autopano giga. Demo edition removes extra CPs but when I
> > load it hugin, it works. So the purpose of this thread is to understand
> or
> > sort out how can i generat extra large or gigapixel images with hugin.
> >
> > On Sat, Aug 21, 2010 at 5:32 PM, Yuval Levy <[email protected]> wrote:
> > > Hi Emaad,
> > >
> > > On August 21, 2010 03:11:06 am Emad ud din Butt wrote:
> > > > I am having problems stitching extra large panoramas with Hugin. I am
> > > > forwarding .pto, mk and stitching window files.
> > >
> > > I looked at the files attached to your message.  They raise more
> > > questions than answers.
> > >
> > > > I have successfully created 4000x2000 panoramas. But when I try to
> make
> > > > 8000x4000 or bigger full res panos, hugin just hangs after several
> > > > hours. Total number of images is 291.
> > >
> > > So here I go with a first bunch of questions:
> > >
> > > 1. how many hard disks does your system have?  how much space is free
> on
> > > each
> > > one of them?
> > >
> > > 2. what version of Hugin are you using? and what version of
> > > Enblend-Enfuse?
> > >
> > >  I
> > >
> > > see hugin-2010.1.0.4920 and hugin.win32.5161 in the paths to the
> > > executables,
> > > but path names can be arbitrary.
> > >
> > > 3. Did Hugin *hang*, i.e. become non-responsive and you had to kill it
> in
> > > the
> > > task manager?  or did it *wait* with an error message window for you to
> > > copy&paste and then terminate the program normally?
> > >
> > >
> > > From the stitching window output the immediate reason for the stitching
> > >
> > > process to fail seems to be lack of disk space (emphasis mine):
> > > | enfuse: an exception occured
> > > | enfuse: enblend: error writing to image swap file.
> > > | *Most likely cause: No space for temporary files*.
> > > | Make sure that there is enough space in the temporary directory
> > >
> > > That said, the project shows unusual patterns and there likely are more
> > > errors.  More information is required to understand:
> > >
> > > 4. How did you position the camera to shoot the images?  Hand held?  On
> a
> > > tripod?  On a calibrated panoramic head?
> > >
> > > 5. Did you do exposure-bracketing?  Consistently on every shoot?  Or
> only
> > > when
> > > shooting high contrast areas such as windows?
> > >
> > > 6. In what mode was the camera?  Manual?  Automatic?  Anything in
> > > between?
> > >
> > > It would help if you could post the following nine pictures, selected
> in
> > > different areas of the project that show anomalies to explain.  Please
> > > post out of camera originals so that we can analyze the whole EXIF
> > > input.
> > >
> > > P8150053.JPG
> > > P8150054.JPG
> > > P8150055.JPG
> > > P8150132.JPG
> > > P8150133.JPG
> > > P8150134.JPG
> > > P8150135.JPG
> > > P8150136.JPG
> > > P8150341.JPG
> > >
> > >
> > > The .pto and .mk files seem to be for the 4000x2000 output.  From a
> quick
> > > look, at least a few things are not right.  Could be at any of the
> > > following
> > > stages or combination thereof:  shooting, cp detection, optimization,
> > > stitching.  The errors might not show when stitched at 4000x2000 but
> they
> > > will
> > > show when stitched at full resolution.
> > >
> > > I don't want to sound pessimistic but it is highly unlikely that I
> would
> > > call
> > > a stitch with the project files you posted a "success" and at this
> point
> > > it is
> > > too early to say if it can be fixed.
> > >
> > > Yuv
>



-- 
_________________________________
Emaad
www.flickr.com/emaad

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