Go中的OpenCV（或类似库）

I intend to use OpenCV for a project in which I've already built the server in Go. However, OpenCV doesn't have a Go API, so what's the best solution? Call a c++ program with .exec, use swig, find another library to do computer vision?

Thanks.

Edit: I want to maximize performance, and I'm ok with C++.

SWIG is certainly a viable option.

You can also search for a Go binding to OpenCV. For example: https://github.com/lazywei/go-opencv