Opencv

best implement: Using Anaconda to install OPENCV3

http://www.shuiqingliu.com/2017/03/29/use-anaconda-to-install-opencv/

if you are facing packages conflicts like me (having a python3.6), try this build:

https://github.com/conda-forge/opencv-feedstock

("condo-forge will save you": relax, what you need is just a more line to solve the conflicts)