A Library of OpenGL-based Mathematical Image Filters
Presentation and Paper
This page here is about a library of mathematical image filters
which I presented at
International Congress on Mathematical Software.
There is a video
recording of the talk, and the slides
of the presentation are available as well. Due to the fact that I used many
live demonstrations of various applications, the slides lack images, so I do
suggest you look at the video as well.
There is also a research
paper in the conference
proceedings, which has a few more details in some aspects.
I hope to make this research paper available here soon as well, but
I'll have to double-check the legalese first to ensure I can legally
You can download
of the latest version
the directory for other versions and artifacts.
Building and running
Currently the easiest way to give the code a try is this:
- Download the sources.
- Unpack them to a directory of your choice.
- Ensure you've got a fairly recent version
of Apache Ant installed. 1.7
might work, 1.8 should work.
- Run ant in that directory to build the project
- Ant will automatically
download ivy, if it isn't
installed on your system.
- Ivy will automatically download all dependencies required by the project.
- The build will print warnings about deprecated Quicktime for Java and about your source tree not being a bazaar working tree. These warnings are expected and won't cause the build to fail.
- Run ant run to execute the code.
- If you are running OS X on an system with a QuickTime-compatible
webcam, you can switch from still image to a live camera image. Give
it a try.
- 2010-09-17 – Release 1.0.2
- Allow parameters starting in pt in formulas which correspond to control
points the user can move around. This is almost exactly the version used in
- 2010-09-11 – Release 1.0.1
- Filters and input sorces can now be configured via the user
interface. Also added editing capabilities for complex formulas.
- 2010-06-26 – Release 1.0.0
- This is an early alpha release of the code, so that
people reading preprint versions of my ICMS 2010 research paper can
have a look at the described code as well. It is far from
feature-complete, but I'm very much interested in bug reports as it
is. So if something looks like it should work but does not, don't
hesitate to write me.
- 2010-06-25 – Submitted final version of the paper
- The final version of the paper has been submitted, pretty much at
the last moment before the deadline.
- 2010-06-09 – Paper accepted
- The preliminary version of the paper has been accepted, under the
condition that I make the source code available, as I do on this page
- 2010-05-11 – Paper submitted
- The preliminary paper was submitted to the ICMS server.
There are still a number of things I'd like to do before I present
this software at
the ICMS 2010 in
September. Here is a list of the most important items:
- The filter library will be maintained after the ICMS 2010
conference, so some name reflecting this fact should be chosen. So far
I haven't decided on an appropriate name yet.
- Portable Webcam
- The Webcam support under OS X using Quicktime for Java works well
enough. I'd like similar support for other operating systems as
well. Unfortunately JMF is mostly dead, and in particular not
available for 64bit systems. So I'll have to look for alternatives.
Currently either FMJ or a combination
of dsj for Windows
and v4l4j for Linux
seem the most likely solution.
- User Interface
- So far the user interface is very bare-bones. It should become at
least a bit nicer, and offer some more features. Version 1.0.1 already
has a number of improvements over 1.0.0 in this area, but this is
still not perfect.
- Web infrastructure
- I'd like to set up Trac to
provide an online browser of my development Bazaar repository as well
as a bug tracker.