VXL

VXL is a collection of C++ computer vision libraries (and python bindings) with contributions from Kitware, GE, Brown University, and others. This wiki page contains unofficial notes from some developers.

Git Repo

Folow the instructions at https://sourceforge.net/p/vxl/wiki/Git/

Compiling

Apple OSX

There are a few bugs affecting compilation, see [1]

• make -j9 is having a non-deterministic behavior - try running it a few times, but make -j5 sometimes works better as far as errors go. A plain make is always safer.
• If you find an error related to ffmpeg, then I just left all FFMPEG-related entries in CMAKE blank. That removes support for video loading but thats about it.
• A compilation error related to X11 means the headers from the wrong place are being used. I had to modify the cmake flag for x11 includes to point to /opt/local/include
• A link time error related to OpenGL acceleration in vgui/tests means this test is outdated and should be ignored. Comment out that file or the offending lines. Alternatively, you could point the OpenGL CMake variables to /opt/... since those opengl libs contain the desired symbols, but they're older.
• See also: General OSX-related development instructions

Writing a program that uses VXL

A simple example using CMake is hello-vxl:

git clone ssh://SOURCEFORGE_LOGIN@labmacambira.git.sourceforge.net/gitroot/labmacambira/hello-vxl

Read the README.

Links

• Official website: http://vxl.sourceforge.net
• Our Pattern Theory course page
• Our Computer Vision grad and undergrad course page