I just notice that MathMap one of the better Gimp Plugin is not listed here.
To present it i just quote its developer Mark Probst
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MathMap is an image processing application that works on several levels:
* Without any prerequisite knowledge about image processing, one can use any of the more than one hundred filters that come bundled with MathMap.
* More advanced users can combine filters intuitively in the Composer, as pictured above.
* For expert users MathMap provides a simple but very efficient programming language. This is the core of MathMap and the language that almost all MathMap filters are implemented in.
MathMap can be used as a GIMP plug-in as well as a command-line tool. It is distributed as Free Software under the terms of the GNU General Public Licence.
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a screenshoot of one of the most interesting feature, the Composer that allow to chain several filters

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The Mathmap Gimp plugin is available for Windows and Linux (for Mac there is a older, standalone version )
For more info, documentation screenshoot ,source code and video presentation see
http://www.complang.tuwien.ac.at/schani/mathmap/
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DOWNLOAD
http://www.complang.tuwien.ac.at/schani/mathmap/
Comments
Mathmap errors with GIMP start up
Hi. I just installed MathMap on both an XP and a Vista machine..
However, when I launch GIMP I get the following 2 errors on both machines:
First error message:
This application has failed to start because libgslcblas.dll was not found. Re-installing the application may fix this problem.
Second error message:
pspi.exe Message
pspi: LoadLibrary() failed for C:\Users\Owner\.gimp-2.6\plug-ins\libgsl.dll: The specified module could not be found.
I did re-install more than once and still get the same errors. Both those dlls are in the plug-ins folder.
Can anyone help?
How to install
Looks a nice application. Forgive me my ignorance I dont know how to install. The site gives me also no directions. I am using Ubuntu64 9.10.
What to download as I see:
- chpp_0.3.6-1_amd64.deb
- mathmap_1.3.5-1_amd64.deb
- mathmap_20090822-1_amd64.deb
And how to install as standalone or Gimp plugin?
How to install the deb files
First, it appears there are two Mathmap files here that are different versions. "mathmap_20090822-1_amd64.deb " is probably the newer version.
Double-clicking the .deb files in the Ubuntu file manager should open the "gdebi" installer that will give you a description of the package along with an "Install" button. Just click that button and enter your password when asked to give install permission.
Otherwise if that doesn't work, move the files to your desktop and run the following command:
cd ~/Desktop; sudo dpkg -i chpp_0.3.6-1_amd64.deb mathmap_20090822-1_amd64.deb
Thanks for the presets PC;
Thanks for the presets PC; didn't have a few of them. Already new about one of the Droste presets being buggy (the main one that comes with Map>Droste works fine though). :)
Now everything should be
Now everything should be fixed.
I uploaded just few minute ago, now not any filters should give warnings or parse errors
About the additional droste the problem was just in the (filter) name
You will not need is the previous version but may be more adapt for who use the first time, may do all the essential but is less complex and look less intimidating
PS the Painini codes were create for a very specific purpose
But i may assure they may be used as excellent and quite advanced distort filters
Thanks; just replaced them
Thanks; just replaced them but didn't really see (still have issues with the new Droste versions; oh well) anything that was an issue before. :)
Additional Filters
i just uploaded a collection of additional "custom" filters for mathmap here
http://photocomix-resources.deviantart.com/art/More-Filters-for-Mathmap-...
Mutliple Errors on Calling Mathmap
I installed the new filters into my expressions folder and when calling the plug-in through GIMP, I got multiple errors about duplicate filters, and one of the new map filters (4Multi-plane perspective) causes Mathmap runtime errors which closes the plug-in.
thank to report maybe some
thank to report maybe some clones slipped in.
just delete 4Multiplane for the moment and please let me know what version of mathmap and wich OS you use
In case was the Windows alpha of Mathmap, that includes several filters not in the linux version.
Basically if you use for the windows alpha of MM 1.3 you may remove all the "Update_Compositing " folder.
For the error for the Droste , the 2 droste are not clones but for the filter name
you may just, in the "expression tab of mathmap at the first not commented line that starting with
"filter droste" correct 1 of the 2 in "filter droste1" and then click
on the save button
Let me know if you find other errors please, so i may correct everything in a short time (as for tomorrow)
Mathmap Info
Win 7 with Mathmap 1.3.5 (latest stable release for Windows) on GIMP 2.6.8
Mathmap 1.3.5 for Windows is
Mathmap 1.3.5 for Windows is a alpha not a stable, anyway i never had problem with that
(i explain better 1.3.5 is a stable version but the corresponding windows build is a alpha )
BUT remove the " Update_Compositing" folder you should already have that filters in the "Compositing" submenu.
For the error with Droste i explained above, you may wait my correction or do by yourself (from the expression tab as explained in my other message,..when done click the "save" button)
If other problems let me know
Parse error
The filter in the file
`C:\Users\mahvin\.gimp-2.6\mathmap\expressions/Extra_Map_Panini/PVSqeeze.mm'
cannot be parsed.
All the other filter errors have been resolved. With the exception of the one I mentioned causing runtime issues (I deleted it as you suggested)
Delete that too...There is
Delete that too...There is already included the fixed version (with almost same name "PVSqeeze1.mm" )
Seems as i made some confusion with the right folder to zip, i was sure to have discarded that..again sorry !
I am not correcting now because i am too sleepy but for tomorrow evening everything will be fixed