C#代码实现生成带Logo的二维码

PM> Install-Package Spire.Barcode

using Spire.Barcode;
using Spire.License;
using System.Drawing;

namespace AddLogoToQR
{
    class Program
    {
        static void Main(string[] args)
        {
            // 加载许可证
            Spire.License.LicenseProvider.SetLicenseFileFullPath("license.elic.xml");

            // 创建 BarcodeSettings 对象
            BarcodeSettings settings = new BarcodeSettings();

            // 设置条码类型、纠错级别、数据等
            settings.Type = BarCodeType.QRCode;
            settings.QRCodeECL = QRCodeECL.M;
            settings.ShowText = false;
            settings.X = 2.5f;
            string data = "www.e-iceblue.com";
            settings.Data = data;
            settings.Data2D = data;

            // 设置二维码中嵌入的 Logo 图片
            settings.QRCodeLogoImage = Image.FromFile(@"C:\Users\Administrator\Desktop\logo.png");

            // 根据设置生成二维码图像
            BarCodeGenerator generator = new BarCodeGenerator(settings);
            Image image = generator.GenerateImage();

            // 保存生成的二维码图片
            image.Save("QR.png", System.Drawing.Imaging.ImageFormat.Png);
        }
    }
}

using ZXing;
using ZXing.QrCode;
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="text">二维码内容</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
/// <returns></returns>
public static Bitmap GenQrCodePic(string text, int width, int height)
{
    BarcodeWriter writer = new BarcodeWriter();
    writer.Format = BarcodeFormat.QR_CODE;
    QrCodeEncodingOptions options = new QrCodeEncodingOptions()
    {
        DisableECI = true,//设置内容编码
        CharacterSet = "UTF-8",  //设置二维码的宽度和高度
        Width = width,
        Height = height,
        Margin = 1//设置二维码的边距,单位不是固定像素
    };

    writer.Options = options;
    Bitmap map = writer.Write(text);
    return map;
}
/// <summary>
/// 生成带Logo的二维码
/// </summary>
/// <param name="text">内容</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
public static Bitmap GenQrCodeLogoPic(string text, string logoPath, int width, int height)
{
    Bitmap logo = new Bitmap(logoPath);
    //计算插入图片的大小和位置
    int middleW = Math.Min((int)(width / 4), logo.Width);
    int middleH = Math.Min((int)(height / 4), logo.Height);
    int middleL = (width - middleW) / 2;
    int middleT = (height - middleH) / 2;
    ////构造二维码写码器
    Bitmap bmpimg = GenQrCodePic(text, width, height);
    using (Graphics g = Graphics.FromImage(bmpimg))
    {
        g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
        g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
        g.DrawImage(bmpimg, 0, 0, width, height);
        //白底将二维码插入图片
        g.FillRectangle(Brushes.White, middleL, middleT, middleW, middleH);
        g.DrawImage(logo, middleL, middleT, middleW, middleH);
    }
    return bmpimg;
}

using Spire.Barcode;
using Spire.License;
using System.Drawing;
 
namespace AddLogoToQR
{
    class Program
    {
        static void Main(string[] args)
        {
            //加载license
            Spire.License.LicenseProvider.SetLicenseFileFullPath("license.elic.xml");
 
            //创建一个BarcodeSettings对象
            BarcodeSettings settings = new BarcodeSettings();
 
            //设置条码类型、纠错级别、数据等
            settings.Type = BarCodeType.QRCode;
            settings.QRCodeECL = QRCodeECL.M;
            settings.ShowText = false;
            settings.X = 2.5f;
            string data = "www.e-iceblue.com";
            settings.Data = data;
            settings.Data2D = data;
 
            //设置logo图像
            settings.QRCodeLogoImage = Image.FromFile(@"C: \Users\Administrator\Desktop\logo.png");
 
            //根据设置生成二维码图像
            BarCodeGenerator generator = new BarCodeGenerator(settings);
            Image image = generator.GenerateImage();
            image.Save("QR.png", System.Drawing.Imaging.ImageFormat.Png);
        }
    }
}