OpenCV 2.1 发布
2010年4月10日
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来源如下：
贴个changelog里的新添加的features：
>>> New functionality, features:
- cxcore, cv, cvaux:
See opencv/samples/c/grabcut.cpp
* new improved version of one-way descriptor is added. See opencv/samples/c/one_way_sample.cpp
* modified version of H. Hirschmuller semi-global stereo matching algorithm that we call SGBM
(semi-global block matching) has been created. It is much faster than Kolmogorov’s graph
cuts-based algorithm and yet it’s usually better than the block matching StereoBM algorithm.
See opencv/samples/c/stereo_matching.cpp.
* existing StereoBM stereo correspondence algorithm by K. Konolige was noticeably improved:
added the optional left-right consistency check and speckle filtering,
improved performance (by ~20%).
* User can now control the image areas visible after the stereo rectification
(see the extended stereoRectify/cvStereoRectify), and also limit the region
where the disparity is computed (see CvStereoBMState::roi1, roi2; getValidDisparityROI).
* Mixture-of-Gaussian based background subtraction algorithm has been rewritten for better performance
and better accuracy. Alternative C++ interface BackgroundSubtractor has been provided,
along with the possibility to use the trained background model to segment the foreground
without updating the model. See opencv/samples/c/bgfg_segm.cpp.
还有几个链接：
The packages are available at SourceForge ( https://sourceforge.net/projects/opencvlibrary/files/). The detailed ChangeLog is here: https://code.ros.org/svn/opencv/trunk/opencv/doc/ChangeLog.htm. The installation guide is here: http://opencv.willowgarage.com/wiki/InstallGuide
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