OpenCV 2.3.1 Release

OpenCV 가 2.3 정식 버전을 공개한 후 바로 2.3.1 버전을 공개 하였다.
실제로 공개한 것은 지난 8월인데 프로젝트 페이지에서 소스 파일 패키지가 보이지 않아 윈도우용은 아직 발표하지 않을 줄 알았다. 그러다 Windows Superpack을 확인해 보니 그 안에 모든 것을 포함하고 있었다.
배포 정책이 바뀐듯 하다. 이전 버전은 Superpack 이외에 소스만 따라 배포를 하였는데 이번에는 모든것을 하나의 파일로 배포하고 있다.

다음은 2.3.1 버전에서 변경된 사항으로 프로젝트 사이트에서 발췌 하였다.

Android port

OpenCV Java bindings for Android platform are released in Beta 2 quality. A lot of work is done to make them more stable and easier to use. Currently Java API has about 700 different OpenCV functions and covers 8 OpenCV modules including full port of features2d. See OpenCV for Android release notes for detailed information about Android-specific changes made for this release.

And follow the instructions from Android page for getting started with OpenCV for Android.

Other New Functionality and Features

• Retina module has been contributed by Alexandre Benoit (in opencv_contrib module). See the new retina sample and https://sites.google.com/site/benoitalexandrevision/.
• Support for Ximea cameras (http://www.ximea.com/) in HighGUI has been contributed by Ximea developers.
• Planar subdivisions construction (Delaunay triangulation and Voronoi tesselation) have been ported to C++. See the new delaunay2.cpp sample.
• Several new Python samples have been added.
• FLANN in OpenCV has been upgraded to v1.6. Also, added Python bindings for FLANN.
• We now support the latest FFMPEG (0.8.x) that features multi-threaded decoding. Reading videos in OpenCV has never been that fast. Documentation

Documentation

Quite a few new tutorials have been added. Check http://opencv.itseez.com/trunk for the up-to-date documentation.

Optimization

Performance of the sparse Lucas-Kanade optical flow has been greatly improved. On 4-core machine it is now 9x faster than the previous version.

Bug Fixes

Over 100 issues have been resolved since 2.3 release. Most of the issues (closed and still open) are listed at https://code.ros.org/trac/opencv/report/6.

Known Problems/Limitations

TBD

OpenCV Project website
OpenCV 2.3.1 Download page
Download OpenCV-2.3.1-win-superpack.exe