nathan
Posts: 8
Location: United States
Registered: 8 Dec 2009
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Hugin problem
Posted: 9 Dec 2009 at 1:29 GMT
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I understand that Hugin is a great pano stitching program but I have problems getting it to do a pano.
Using Hugin 2009.2.0.4461 in WinXP. Tried to stitsh 16 images to make a 360 cylindrical pano and got some weird, unusable results.
Tried the same using Photoshop Elements Photomerge and got decent results.
Can anyone suggest how to get Hugin to work?
Thanks,
Nathan
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jwigum
Posts: 14
Location: United States
Registered: 25 Mar 2009
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Re: Hugin problem
Posted: 15 Dec 2009 at 20:20 GMT
updated: 15 Dec 2009 at 20:21 GMT
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Nathan,
Are you sure you don't have any issues with parallax?
Are you using a panoramic head to rotate your camera?
Are you using the correct lens data in Hugin?
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Charles Fletcher
Posts: 10
Location: London, United Kingdom
Registered: 31 Jan 2007
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Re: Hugin problem
Posted: 15 Dec 2009 at 22:23 GMT
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Weird results can come from the autopano-sift generating false control points from similar looking features. Check there are no control points between non-adjacent images.
Also it can help to start by entering initial values for pitch and yaw for each image.
Charles
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John Houghton
Posts: 3411
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
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Re: Hugin problem
Posted: 16 Dec 2009 at 8:18 GMT
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Another explanation for the weird results might be that the panorama just needs levelling. A panorama that's grossly out of position on the stitching sphere can look decidedly odd to the inexperienced eye.
John
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nathan
Posts: 8
Location: United States
Registered: 8 Dec 2009
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Re: Hugin problem
Posted: 25 Dec 2009 at 1:07 GMT
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Reply to all...
My question is why the same 16 images can be stitched by Elements Photomerge but not by hugin.
Now I tried just two images and again got some strange looking results.
How do I get hugin to work?
Nathan
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John Houghton
Posts: 3411
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
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Re: Hugin problem
Posted: 25 Dec 2009 at 11:02 GMT
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It's impossible to dianose the cause of your problems without evidence of some sort. In the hands of an experienced user, Hugin can stitch almost anything. Since you have problems even with only two images, I suggest you follow this tutorial initially:
hugin.sourceforge.net/tutorials/two-photos/en.sht...
If you end up with an unsatisfactory stitch, save the project file and make both it and the two images available for inspection. Upload them to your own web space if you have that, or upload them (preferably zipped together into a single archive file) to a free service such as www.filedropper.com/ and supply a link to the files here.
John
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nathan
Posts: 8
Location: United States
Registered: 8 Dec 2009
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Re: Hugin problem
Posted: 25 Dec 2009 at 15:16 GMT
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filedropper doesn't seem free or am I missing something.
Nathan
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John Houghton
Posts: 3411
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
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nathan
Posts: 8
Location: United States
Registered: 8 Dec 2009
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Re: Hugin problem
Posted: 25 Dec 2009 at 19:50 GMT
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I was able to stitch two of my images but not the 17 needed.
It seems impractical to manually set control points for 17 images.
I have uploaded all to sendspace. Would like to be able to use hugin but sofar only wasted a lots of time.
Here is a link to get my files. Maybe you can figure this out and tell me what was I doing wrong.
www.sendspace.com/file/sqnomu
Thanks a million,
Nathan
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mediavets
Posts: 1948
Location: Isleham, Cambs., United Kingdom
Registered: 8 Feb 2008
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Re: Hugin problem
Posted: 25 Dec 2009 at 20:58 GMT
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nathan said: I was able to stitch two of my images but not the 17 needed.
It seems impractical to manually set control points for 17 images.
I have uploaded all to sendspace. Would like to be able to use hugin but sofar only wasted a lots of time.
Here is a link to get my files. Maybe you can figure this out and tell me what was I doing wrong.
www.sendspace.com/file/sqnomu
Thanks a million,
Nathan
No problems stitching your images with Autopano Pro with fully automatic control point detection.
Your first and last images overlap a lot - it may be possible to omit one of them.
Andrew
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John Houghton
Posts: 3411
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
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Re: Hugin problem
Posted: 25 Dec 2009 at 21:29 GMT
updated: 25 Dec 2009 at 21:32 GMT
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Nathan, The problem with your project file was that there were some errant control points assigned between similar features on non-neighboring images. These were dragging the images out of alignment. I deleted those and added a few extra to improve the verical spread of points. I also added a couple of vertical line control points to level it. Hence the slightly wavy top and bottom. It stitched well. You need to select cylindrical or equirectangular format for the output panorama. I have put the project file and stitched image at www.johnhpanos.com/nathans.zip .
Merry Christmas,
John
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nathan
Posts: 8
Location: United States
Registered: 8 Dec 2009
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Re: Hugin problem
Posted: 26 Dec 2009 at 1:33 GMT
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Thanks, but Autopano is too expensive for me.
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nathan
Posts: 8
Location: United States
Registered: 8 Dec 2009
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Re: Hugin problem
Posted: 26 Dec 2009 at 1:37 GMT
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Thanks, looks fantastic! How do I learn myself to do this?
How/where did you do this so I can replicate and learn.
Thanks again,
Nathan
PS. Is there a way that I can be notified via email when a reply is posted?
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nathan
Posts: 8
Location: United States
Registered: 8 Dec 2009
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Re: Hugin problem
Posted: 26 Dec 2009 at 1:46 GMT
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Are there any books available on Hugin?
Thanks,
Nathan
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John Houghton
Posts: 3411
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
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Re: Hugin problem
Posted: 26 Dec 2009 at 9:03 GMT
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All the Panorama Tools based gui interface programs (Hugin, PTGui, PTAssembler etc.) share the same basic modus operandi, so tutorials written for one will often apply to the others, with due allowance for differences in screenshots, etc. Each product reflects the interests of its own developers and userbase, and so might be preferred according to the type of work generally performed. So it is that PTGui finds favour with those doing VR work, whereas the PTAssembler uers tend to be more interested in high resolution, printed panoramas. Hugin is not so focussed but has its own niche by virtue of being open source and free. Each can tackle jobs of various types, but some more or less easily than others.
There are Hugin tutorials at hugin.sourceforge.net/tutorials/index.shtml , and a lot of general advice and guidance can be found on the Panorama Tools wiki at wiki.panotools.org/ . A web search for tutorials for each of the gui programs will also bring up many others.
John
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