二维码识别 golang

qrcode.go

package main

import (
	"fmt"

	//"github.com/shezadkhan137/go-qrcode/qrcode"

	"encoding/base64"
	"io/ioutil"
	"strings"

	"image"
	"image/jpeg"
	"image/png"

	"golang.org/x/image/bmp"

	"bytes"

	"gopkg.in/bieber/barcode.v0"

	"github.com/itang/gotang"
)

func main() {
	for i := 1; i <= 3; i++ {

		content, err := ioutil.ReadFile(fmt.Sprintf("d%v.data", i))
		gotang.AssertNoError(err, "")

		arr := strings.Split(string(content), ",")

		imageContent := arr[1]
		//fmt.Println(imageContent)

		byteData, err := base64.StdEncoding.DecodeString(imageContent)
		gotang.AssertNoError(err, "")

		fmt.Println("len:", len(byteData))

		gotang.Time(func() {
			var src image.Image
			var err error

			if strings.Contains(arr[0], "jpeg") {
				src, err = jpeg.Decode(bytes.NewReader(byteData))
				gotang.AssertNoError(err, "")
			} else if strings.Contains(arr[0], "bmp") {
				src, err = bmp.Decode(bytes.NewReader(byteData))
				gotang.AssertNoError(err, "")
			} else {
				src, err = png.Decode(bytes.NewReader(byteData))
				gotang.AssertNoError(err, "")
			}

			img := barcode.NewImage(src)
			scanner := barcode.NewScanner().
				SetEnabledAll(true)

			symbols, _ := scanner.ScanImage(img)
			for _, s := range symbols {
				fmt.Println(s.Type.Name(), s.Data, s.Quality, s.Boundary)
			}
		})
	}

}