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2017-07-06 06:21:23 -0600	commented answer	Can I add opencv_contrib after installing Oencv3.2 on Ubuntu16.04? You have been a great help. I really have a lot to learn.
2017-07-06 06:11:04 -0600	received badge	● Supporter (source)
2017-07-06 05:08:29 -0600	received badge	● Scholar (source)
2017-07-06 05:07:24 -0600	received badge	● Scholar (source)
2017-07-06 04:54:59 -0600	commented answer	Can I add opencv_contrib after installing Oencv3.2 on Ubuntu16.04? Indeed，I did cmake && make && make install few minutes before you answered me. I just can't wait for follow-up work！ When I click the link " 3.3-rc " , I find the 3.2.0-rc is opencv_contrib-3.2.0-rc.tar.gz. I choose `cmake && make && make` because my file name is "opencv_contrib-3.2.0.tar.gz" . And it didn't give warnings or errors. Is my choice right? Or how can I distinguish between 3.2 and 3.2-rc ?
2017-07-06 03:35:35 -0600	commented answer	Can I add opencv_contrib after installing Oencv3.2 on Ubuntu16.04? Thanks！I do as you say and get good result.
2017-07-06 02:29:41 -0600	received badge	● Editor (source)
2017-07-06 02:19:30 -0600	asked a question	Can I add opencv_contrib after installing Oencv3.2 on Ubuntu16.04? I have installed OpenCV on Ubuntu without opencv_contrib. So when I want to add opencv_contrib,I followed steps on this page: link text `$ cd <opencv_build_directory> $ cmake -DOPENCV_EXTRA_MODULES_PATH=<opencv_contrib>/modules <opencv_source_directory> $ make -j5` Need I uninstall before OpenCV3.2 and install again? or just make install without uninstall？