How to create QR code image with company logo [closed]_问答_开发者

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We are using a lot of QR code around our office. I would like to know if we can generate QR code with a small company logo in the middle. I have seen few examples online.

But I want it to generate it automatically inste开发者_StackOverflow中文版ad of user manually editing it with photoshop software.

I appreciate any help.

Thanks.

You can try http://www.unitaglive.com/qrcode. It allows many content types and heavy customization, including changing the color of the eyes; using an image as the background; many styles; shadow; redundancy; and more, also allows you to use a logo and is based off a freemium business model. The free plan has no signup

Here is a site that will generate a QR code with your image actually embedded as part of the QR code, no error correction.

http://research.swtch.com/qr/draw

There is some information about how it is done here if you wanted to look into implementing the logic yourself for automation.

http://research.swtch.com/qart

http://beqrious.com/generator and then the graphical tab

You may want to look at http://contentdeveloper.com/2010/01/how-to-customize-qr-codes-with-your-brands-identity/ (there were some other articles I read just a couple nights ago, but I can't find them, though this should work as well)...also, something I read suggested using the highest error correction level. This way, more of the data in the barcode is merely error-correction data. You can overwrite this with no worries, as long as you realize that if the rest of the barcode gets damaged, you may not be able to recover the data.

Unfortunately, it's just going to involve a bunch of trial and error.

Good luck!

EDIT: Sorry, I just read that you wanted it generated automatically rather than editing the image.

I created a video showing how to use an open-source c# library to create a QR Code and then upload/embed a logo of your choosing into the QR Code:

http://markhagan.me/Samples/Create_QR_Code_With_Logo_ASPNet

The video is only 10 minutes long and the result is a working QR Code generator. In case you don't care to spend the ten minutes, here is the source code:

The front page:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="CodeCreator._default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="URL" runat="server"></asp:TextBox>
        <br /><br />
        <asp:FileUpload ID="LogoUpload" runat="server" />
        <br /><br />
        <asp:Button ID="CreateCode" runat="server" Text="Create QR Code" OnClick="CreateCode_OnClick" />
        <br /><br />
        <asp:Image runat="server" ID="QRImage" />
    </div>
    </form>
</body>
</html>

And the code-behind:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using MessagingToolkit.QRCode.Codec;
using MessagingToolkit.QRCode.Codec.Data;
using System.Drawing;
using System.Drawing.Imaging;

namespace CodeCreator
{
    public partial class _default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
        }

        protected void CreateCode_OnClick(object sender, EventArgs e)
        {
            string path = "c:\\code\\projects\\CodeCreator\\CodeCreator\\";
            QRCodeEncoder encoder = new QRCodeEncoder();

            encoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H; // 30%
            encoder.QRCodeScale = 10;

            Bitmap img = encoder.Encode(URL.Text);
            LogoUpload.SaveAs(path + LogoUpload.FileName);

            System.Drawing.Image logo = System.Drawing.Image.FromFile(path + LogoUpload.FileName);

            int left = (img.Width / 2) - (logo.Width / 2);
            int top = (img.Height / 2) - (logo.Height / 2);

            Graphics g = Graphics.FromImage(img);

            g.DrawImage(logo, new Point(left, top));

            img.Save(path + "img.jpg", ImageFormat.Jpeg);

            QRImage.ImageUrl = "img.jpg";
        }
    }
}

You can also use directly your logo with LogoGrab. Just upload your logo at http://www.logograb.com/upload, link any content you wish to your logo and let your customers scan your logo wherever they see it.

Have a look at the following sites. They allow you upload a logo or graphic and have it automatically embedded in the QR code. They also support color changes.