QR Code 工具集合

现在随处都可以见到 QR Code 出现在各种海报，车票，衣服，网站上。QR Code 可以存储网址，文字，电话号码，短信，联系人信息，日历事件等。只需用手机或者识别软件就可以读出 QR Code 中包含的信息，轻松访问网址，添加联系人，添加日历事件，传送文字。

什么是 QR Code？

QR 码（ QR Code ）是二维条码的一种，1994 年由日本 Denso-Wave 公司发明。QR 来自英文“Quick Response”的缩写，即快速反应的意思。QR 码比普通条码可储存更多资料，亦无需像普通条码般在扫描时需直线对准扫描器。

QR 码呈正方形，只有黑白两色。在3个角落，印有较小，像“回”字的的正方图案。这 3 个是帮助解码软件定位的图案，使用者不需要对准，无论以任何角度扫描，资料仍可正确被读取。via 维基百科

如何生成 QR Code？

最方便的当然是在线服务：

推荐 QRStuff，它除了能生成常见的条形码之外，还能生成联系人信息（Contact Details (VCARD)）、日历事件（Event (VCALENDAR)）、Wifi 登陆信息（Wifi Login (Android Only)）备选服务：QR Code Generator 。

把当前网址转换成 QR Code

Firefox 扩展 Mobile Barcode 和 Chrome 扩展 QR-Code Tag 可以轻松地把当前网站转化成 QR Code。

怎么识别 QR Code

可以用 ZXing Decoder Online识别，它能识别网络上的 QR Code图片，也可以从电脑上上传一张图片进行识别。Android 用户可以试试 Barcode Scanner App（免费），iOS 平台有 QR Reader for iPhone （免费）。

跨系统平台识别软件 – Desktop QR Code Reader 该软件需要安装 Adobe AIR，然后就可以用电脑摄像头识别 QR Code 了。

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Note：

ZXing是一个开源项目，对QR Code解码感兴趣的可以学习一下！

http://code.google.com/p/zxing/

ZXing ("Zebra Crossing")

ZXing (pronounced "zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages. Our focus is on using the built-in camera on mobile phones to scan and decode barcodes on the device, without communicating with a server. However the project can be used to encode and decode barcodes on desktops and servers as well. We currently support these formats:

• UPC-A and UPC-E
• EAN-8 and EAN-13
• Code 39
• Code 93
• Code 128
• QR Code
• ITF
• Codabar
• RSS-14 (all variants)
• Data Matrix
• PDF 417 ('alpha' quality)
• Aztec ('alpha' quality)

This library is divided into several main components which are actively supported:

1. core: The core image decoding library, and test code
2. javase: J2SE-specific client code
3. android: Android client, called Barcode Scanner
4. androidtest: Android test app
5. android-integration: Supports integration with our Barcode Scanner app via Intent
6. zxingorg: The source behind zxing.org/w

There are also additional modules which are contributed and/or intermittently maintained:

1. zxing.appspot.com: The source behind our web-based barcode generator
2. csharp: Partial C# port
3. cpp: Partial C++ port
4. iphone: iPhone client + port to Objective C / C++ (QR code only)
5. jruby: Ruby wrapper
6. actionscript: partial port to Actionscript

There are, finally, some modules no longer maintained but that are available from earlier releases:

1. javame: JavaME client
2. rim: RIM/Blackberry-specific client build
3. bug: Client for BugLabs's BUG

To complement our decoding software, we have created a web-based QR Code generator which supports contact information, calendar events, URLs, and much more.