How to install opencv on mac to test go samples

[maxfridbe]

I'm new to go and opencv
To install open cv I did:

brew tap homebrew/science
brew install opencv
go run hellocv.go 

Results in

# pkg-config --cflags opencv opencv opencv opencv opencv opencv opencv
pkg-config: exec: "pkg-config": executable file not found in $PATH

[LihMeh]

That's what helped me

1. You need pkg-config to be installed

brew install pkg-config

2. You have to install opencv 2 instead of opencv 3 (Opencv 3 is not supported)

brew remove opencv
brew install opencv@2

3. You need pkg_config to be able to to find you library. Since it's it unusual place, you have to set it manually

export PKG_CONFIG_PATH="/usr/local/opt/opencv@2/lib/pkgconfig"