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How to Install OpenCV 3, OpenCV_Contrib, and nteract on Windows
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instructions.md

Installing OpenCV on Windows

First open a powershell terminal install the scoop package manager:

iex (new-object net.webclient).downloadstring('https://get.scoop.sh')

Note: if you get an error you might need to change the execution policy (i.e. enable Powershell) with:

Set-ExecutionPolicy RemoteSigned -scope CurrentUser

Then add the extras bucket:

scoop bucket add extras

and install nteract:

scoop install nteract

Python 2.x

scoop bucket add versions
scoop install python27

Python 3.x

scoop install python

Install OpenCV and supporting libraries

pip install opencv-python opencv-contrib-python numpy matplotlib
python -m pip install ipykernel
python -m ipykernel install --user

Switch to Python 2.x

scoop reset python27

Switch to Python 3.x

scoop reset python
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