Pincushion and barrel distortion

It uses pthreads? Oh, so it does...

Try commenting out all the pthread calls. I'm fairly certain that they
aren't needed - they were inherited from another use of the same code,
I think.

--
David Hodson  --  this night wounds time

This works.

http://schumaml.gmxhome.de/dow nloads/gimp/dbp-20040829.zip

HTH,
Michael

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Hello,

Here is some help how to use it:

<http://www.dpreview.com/learn/ ?/Image_Techniques/Barrel_Dist ortion_Co...>

And here where to get it (for Linux)

<http://bugbear.blackfish.org.u k/~bruno/apt/fedora/linux/1/i3 86/RPMS.p...>

HTH,

Peter

I tried. The preblem is the pthread stuff - there seems to be a port
of this for Win32 (http://sources.redhat.com/pthr eads-win32/). But
instead of adding another dependency, could this be rewritten using
gthreads?

Michael

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Thank you very much.

    Alan

http://schumaml.gmxhome.de/dow nloads/gimp/wideangle-20031211 .zip

No changes needed.

HTH,
Michael

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Very cool, thanks. Don't suppose you tried to compile DBP?

--
David Hodson  --  this night wounds time

There's also a plugin not based on panorama tools, at:

http://members.ozemail.com.au/ ~hodsond/wideangleSrc-11-Dec-2 003.tgz

But I haven't compiled it on Windows, so I don't know whether
it will need any changes.

--
David Hodson  --  this night wounds time

Thanks Leonard,

I found a panotools plugin for gimp 1.2, but couldn't find one for 2.0
(for Windows anyway).  Then I found a pspi.exe for Gimp 2, figured
out how to use it, and tried the Photoshop PTLens plugin.  No luck yet,
but I'm still working on it.

I also found source code for twist and wideangle, two plugins that
supposedly handle pincushion and barrel, but haven't yet tracked
down any binaries.  I could try setting up an environment for
compiling them, but I don't have the heart for that right now.  I've
got the free Borland C++ compiler on my machine, but haven't got
the Microsoft compiler at the moment and know I'd have to go through
some hoops to get GTK, Gimp, and whatever else working before
I'd even be ready to start on twist and wideangle.

Lest you Linux guys think that you have all the configuration fun
and us Windows users don't get any of the challenge of getting
software to work - don't be too sure of it.  We get plenty of fun too.
I spent 5 hours Wednesday getting my new Epson scanner to
install under Windows XP before I finally discovered and corrected
some registry errors on my system to get it working.

But I guess that beats the 20+ hours I spent (before giving up) trying
to get my Linux dual boot to recognize my wireless network card.

Computers are such a hoot.

    Alan

Thanks Gerald.

I discovered the problem with the PTLens website is that it has
exceeded the allowed number of downloads per month.  It may
be available later, or maybe some kind soul will rehost the
software for the author.

It appears that the GIMP plugin registry has twist and wideangle,
that website seems to have problems too at the moment.  But
I'll get them eventually.

     Alan

I've just been to the PTLens site now and downloaded the plug-in without any
problems at all...maybe a good time to try again quick, Alan :)

Kline

I got into the site and downloaded the software.  It took a few minutes
to figure it out and add my Pentax Optio 750Z to the pentax_profile (it
seems to have the same lens as the Optio 450/550/555 and so can use the
same profile), and try it out.

I don't have Photoshop and therefore couldn't use the fast Photoshop
plugin version.  But the stand-alone version, although a bit slow (22
seconds on my Athlon 2600+,  38 seconds on a 2.26 GHz Pentium 4, both
for a 7mp image), it works great.

    Alan

There is a gimp plugin for correcting barrel and pincushion distortion.
   It is based on panorama tools.  I had to do some searching to find it
in the first place, and unfortunately I didn't keep a record of where it
is.  But it should not be too hard to find with google.   It works quite
well once you figure out how to use it, and it is very simple to use.

Look for plugins ??twist?? and/or ??wideangle??
--
Gerald Hammer