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update the docs for cvExtractSURF and initModule_nonfree()

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Vincent Rabaud 2012-07-10 19:09:00 +00:00
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commit c52d620817
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modules/nonfree/doc/feature_detection.rst
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@ -126,3 +126,5 @@ Detects keypoints and computes SURF descriptors for them.
:param params: SURF algorithm parameters in OpenCV 1.x API.
The function is parallelized with the TBB library.
If you are using the C version, make sure you call ``cv::initModule_nonfree()`` from ``nonfree/nonfree.hpp``.