! Top
http://www.opencv.org/

!GITHub

*https://github.com/opencv/opencv
*http://sourceforge.net/projects/opencvlibrary/

*https://github.com/Itseez/opencv/releases

SIFT & SURF

*https://github.com/opencv/opencv_contrib

*https://github.com/Itseez/opencv_contrib/releases

顔の傾き
*https://www.idnet.co.jp/column/page_172.html

*https://note.nkmk.me/python-opencv-videocapture-file-camera/

----
 pip install opencv-python
 pip install opencv-contrib-python
----
 unzip ./opencv-4.3.0.zip
 cd opencv-4.3.0
  cmake -D CMAKE_BUILD_TYPE=RELEASE \
 -D CMAKE_INSTALL_PREFIX=$HOME/opt/opencv430 \
 ..
 
 ( PYTHON の指定がいる？？ )
----
! camera parametor
 > v4l2-ctl --list-devices
 > v4l2-ctl -d /dev/video2 --all 
 > v4l2-ctl --device=/dev/video2 --list-formats-ext
----
!参考

http://sourceforge.net/projects/opencvlibrary/

http://limu.is.kyushu-u.ac.jp/~yosimoto/work/opencv-howto/

http://www-cv.mech.eng.osaka-u.ac.jp/~hamada/openCV/

http://www.er.ams.eng.osaka-u.ac.jp/yamamoto/index.php?OpenCV

 cat SETENV
 #
 #
 #
 export PKG_CONFIG_PATH=$HOME/opt/lib/pkgconfig/
 export LDFLAGS='-L$HOME/opt/lib'
 export CPPFLAGS='-I$HOME/opt/lib/include'
 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$HOME/opt/lib

----
http://linux.bytesex.org/xawtv/

http://www.atmarkit.co.jp/flinux/rensai/linuxtips/343useusbcam.html

http://physics.atnifty.com/server/livecam.html
----
http://speed.rbbtoday.com/
----
https://www.idnet.co.jp/column/page_172.html