GoCV：使用Go和OpenCV4.0.1进行计算机视觉编程

To use GoCV, you must install OpenCV 4.0.1 on your system.

示例代码：

This example opens a video capture device using device “0”, reads frames, and shows the video in a GUI window:

package main
import (
	"gocv.io/x/gocv"
)
func main() {
    webcam, _ := gocv.VideoCaptureDevice(0)
    window := gocv.NewWindow("Hello")
    img := gocv.NewMat()
    for {
        webcam.Read(&img)
        window.IMShow(img)
        if (window.WaitKey(1) & 0xff == int('q') {
            break
        }
    }
}

编译程序，并执行

1 2	$go build -o test_cv gocv_example.go $./test_cv

如果执行过程出现如下错误：

1	./test_cv: error while loading shared libraries: libopencv_calib3d.so.4.0: cannot open shared object file: No such file or directory

解决办法：

1	$export LD_LIBRARY_PATH=/home/chengwei/work/github/opencv-4.0.1/release/lib:$LD_LIBRARY_PATH

执行效果：