cam is a package for Go that provides a high level api (similar to net/http) and a small set of plugins for working with camera frames. For the device communication, implementing the Device interface, we use GoCV and OpenCV, more can be easily added. Contributions are welcomed.
- For the
gocvdevice implementation you will only need OpenCV installed. You can see instructions for installation on the opencv docs and in the GoCV page.
go get github.com/mvrilo/cam
package main
import (
"image"
"image/color"
"log"
"github.com/mvrilo/cam"
"github.com/mvrilo/cam/middlewares/pixelize"
"github.com/mvrilo/cam/middlewares/window"
"gocv.io/x/gocv"
_ "github.com/mvrilo/cam/gocv"
)
func main() {
cam.Use(pixelize.New(32))
cam.Handle(func(f cam.Frame) {
text := "hello world"
blue := color.RGBA{0, 0, 255, 0}
data, ok := f.Data().(gocv.Mat)
if !ok {
return
}
gocv.PutText(&data, text, image.Pt(200, 200), gocv.FontHersheyPlain, 10, blue, 8)
})
cam.Use(window.New("cam example"))
log.Fatal(cam.ListenAndServe(0, nil))
}
Murilo Santana <mvrilo@gmail.com>