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a common lisp (well, sbcl) wrapper around the opencv vision library
Common Lisp C Shell
branch: master

Merge pull request #5 from ejbs/master

Fixes to make this build on Ubuntu 12.04
latest commit 571215d60e
@ryepup authored
Failed to load latest commit information.
build Added code for cffi glue library.
glue Added glue functions for cvCopyMakeBorder.
test
.gitignore Added fasl files to .gitignore.
LICENSE Add BSD license, list myself and jbromley (who forked and did most of…
Makefile Added code for cffi glue library.
Makefile.common Added code for cffi glue library.
Makefile.darwin Added code for cffi glue library.
Makefile.linux Added code for cffi glue library.
README.md Added glue library instructions.
TODO.org Updated to do list with task to switch to using fsbv.
cl-opencv-test.asd Imported local cl-opencv.
cl-opencv.asd Added file for image processing functions.
cl-opencv.lisp Fixes to make this build on Ubuntu 12.04
core.lisp Renamed cv-size struct to just size.
frdiff.sh Added cvAddWeighted.
highgui.lisp Removed :use :cffi.
imgproc.lisp Added needed cffi: package prefixes.
package.lisp Renamed cv-size struct to just size.
select_platform.sh Added code for cffi glue library.
test.sh Changed test.sh to run show-camera-threshold.

README.md

README: cl-opencv

Introduction

These are OpenCV bindings for SBCL. They do not promise to be complete, though eventually I hope to have fairly complete coverage of OpenCV functionality. This package depends on the cffi package and libffi. I use Quicklisp to set up my Lisp environment.

Compatibility

This package is known to work in the following configurations.

  • Mac OS 10.6, sbcl 1.0.45 (MacPorts), OpenCV 2.2 (MacPorts)
  • Ubuntu 10.10 (64-bit), sbcl 1.0.40, OpenCV 2.1

If you have gotten cl-opencv to run with some other combination of OS and software versions, please let me know.

Installation

Mac OS X

  1. Install OpenCV from MacPorts: port install opencv
  2. Install libffi from MacPorts: port install libffi
  3. In your lisp environment, make sure that cffi is available. In Quicklisp you would just do (ql:quickload "cffi").
  4. Run make and sudo make install in the top-level directory to build and install the glue code library.

Ubuntu

  1. Install OpenCV from the repos: sudo apt-get install libhighgui-dev.
  2. Install libffi from the repos: sudo apt-get install libffi
  3. In your lisp environment, make sure that cffi is available. In Quicklisp you would just do (ql:quickload "cffi").
  4. Run make and sudo make install in the top-level directory to build and install the glue code library.

Troubleshooting

Ubuntu

If CFFI has problems loading the library, be sure that:

  • your lisp and your OpenCV library are both 32 bit or both 64 bit; and
  • if you installed OpenCV to a non-standard location, you might try adding that path to cffi:*foreign-library-directories*.

Different camera support different resolutions and framerates. The tests assume a camera capable of about 30 fps at 640x480. Adjust the values at the top of test.lisp to match your camera. A program like VLC can help you determine those.

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