基于Go语言开发实现条形码识别器

package main

import (
	"flag"
	"fmt"
	"image"
	_ "image/jpeg"
	_ "image/png"
	"os"

	"github.com/makiuchi-d/gozxing"
	"github.com/makiuchi-d/gozxing/multi"
)

func main() {
	input := flag.String("in", "barcode.png", "输入图片文件")
	flag.Parse()

	file, err := os.Open(*input)
	if err != nil {
		fmt.Printf("❌ 打开图片失败: %v\n", err)
		os.Exit(1)
	}
	defer file.Close()

	img, _, err := image.Decode(file)
	if err != nil {
		fmt.Printf("❌ 解码图片失败: %v\n", err)
		os.Exit(1)
	}

	// 将 image 转换为 BinaryBitmap
	source := gozxing.NewLuminanceSourceFromImage(img)
	bmp, _ := gozxing.NewBinaryBitmap(gozxing.NewGlobalHistgramBinarizer(source))

	// 使用 MultiFormatReader 识别多种码制
	reader := multi.NewByQuadrantReader(gozxing.NewMultiFormatReader())

	result, err := reader.Decode(bmp, nil)
	if err != nil {
		fmt.Printf("❌ 未识别到条码: %v\n", err)
		os.Exit(1)
	}

	fmt.Println("✅ 识别成功！")
	fmt.Printf("内容: %s\n", result.String())
	fmt.Printf("格式: %s\n", result.GetBarcodeFormat())
}

go mod init barcode-reader
go get github.com/makiuchi-d/gozxing

go build -o barcode-reader main.go

./barcode-reader -in product_barcode.jpg