opencv

README

#Go OpenCV binding

Why fork?

Original project (https://code.google.com/p/go-opencv) looks abandoned. Therefore, I decide to fork it and host it on Github, so that others can help to maintain this package.

Install

Linux & Mac OS X

Install Go and OpenCV, you might want to install both of them via apt-get or homebrew.

go get github.com/lazywei/go-opencv
cd ${GoOpenCVRoot}/samples && go run hellocv.go

Windows

• Install Go and MinGw
• install OpenCV-2.4.x to MinGW dir
  • libopencv*.dll --> ${MinGWRoot}\bin
  • libopencv*.lib --> ${MinGWRoot}\lib
  • include\opencv --> ${MinGWRoot}\include\opencv
  • include\opencv2 --> ${MinGWRoot}\include\opencv2

go get code.google.com/p/go-opencv/trunk/opencv
cd ${GoOpenCVRoot}/trunk/samples && go run hellocv.go

Example

Resizing

package main

import opencv "github.com/lazywei/go-opencv/opencv"

func main() {
	filename := "bert.jpg"
	srcImg := opencv.LoadImage(filename)
	if srcImg == nil {
		panic("Loading Image failed")
	}
	defer srcImg.Release()
	resized1 := opencv.Resize(srcImg, 400, 0, 0)
	resized2 := opencv.Resize(srcImg, 300, 500, 0)
	resized3 := opencv.Resize(srcImg, 300, 500, 2)
	opencv.SaveImage("resized1.jpg", resized1, 0)
	opencv.SaveImage("resized2.jpg", resized2, 0)
	opencv.SaveImage("resized3.jpg", resized3, 0)
}

Webcam

Yet another cool example is created by @saratovsource which demos how to use webcam:

cd samples
go run webcam.go

More

You can find more samples at: https://github.com/lazywei/go-opencv/tree/master/samples

How to contribute

• Fork this repo
• Clone the main repo, and add your fork as a remote

git clone https://github.com/lazywei/go-opencv.git
cd go-opencv
git remote rename origin upstream
git remote add origin https://github.com/your_github_account/go-opencv.git

• Create new feature branch

git checkout -b your-feature-branch

• Commit your change and push it to your repo

git commit -m 'new feature'
git push origin your-feature-branch

• Open a pull request!

TODOs

• More details doc
• Implement more bindings