como Instalar el OpenCV

Aqui encontraras como instale el openCv en mi rasperry 3 la version B, con raspbian stretch version 2.8.2 Release date:2018-06-27

$ sudo apt-get purge wolfram-engine
// $ sudo apt-get purge libreoffice*

http://www.life2coding.com/install-opencv-3-4-0-python-3-raspberry-pi-3/ http://codigoelectronica.com/blog/como-instalar-arduino-en-raspberry-pi https://raspberrypi.stackexchange.com/questions/68837/pyserial-error-on-raspberry-3 https://github.com/pypa/pip/issues/5247