install opencv 3.4.2 on raspberry pi w zero

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Hello,

I am trying to install OpenCV Version 3.4.2 or better on my raspberry pi w zero. I have looked/tried tutorials and tried customizing but the build fails.

Does anyone know of a tutorial / online source I can follow to install install opencv 3.4.2 on my raspberry pi w zero? Or if you know how to do it?

Thanks!