QR-Code

• update (160906): added an exe version - myqr.exe in qrcode_win

• update (160908): added a web version - amazing-qrcode (made by Maras0830)

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Overview 概述

QR Code in Python

Python 二维码生成器

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It can generate common qr-code, artistic qr-code (black & white or colorized), animated qr-code (black & white or colorized).

可以生成普通二维码、带图片的艺术二维码（黑白与彩色）、动态二维码（黑白与彩色）。

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Contents 目录

• Overview 概述
• Example 示例
• Usage 用法
  • Common QR-Code 普通QR二维码
  • Artistic QR-Code 艺术QR二维码
  • Animated GIF QR-Code 动态二维码
• Tips 提示
• Supported Characters 可用字符
• Dependences 依赖库
• Environment 运行环境

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Example 示例

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Usage 用法

Common QR-Code 普通QR二维码

python myqr.py 	[-h]
				[-v {1,2,3,...,40}]
				[-l {L,M,Q,H}]
				Words

• Use argument -h for help.

  使用参数 -h 来获得使用帮助。

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#1 url
python myqr.py https://github.com

• Simplest way: Just input a URL or a sentence, then get your QR-Code in the current directory.

  最简单的用法：在命令后输入链接或者句子作为参数，然后在程序的当前目录中产生相应的QR二维码图片。

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#2 -v, -l
python myqr.py https://github.com -v 10 -l Q

• The default length of a side of QR-Code depends on the numbers of words you input. And the default level (Error Correction Level) is H (the highest).

  默认边长是取决于你输入的信息的长度，而默认纠错等级是最高级的H。

• Customize size: If you want to control the length and the error-correction-level, use the -v and -l arguments. The -v representing the length is from a minimum of 1 to a maximum of 40. The -l representing the error correction level is one of L, M, Q and H, where L is the lowest level and H is the highest.

  自定义尺寸：如果想要控制边长和纠错水平就使用 -v 和 -l 参数。使用 -v 来控制边长，范围是1至40，数字越大边长越大；使用 -l 来控制纠错水平，范围是L、M、Q、H，从左到右依次升高。

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Artistic QR-Code 艺术QR二维码

python myqr.py 	[-h]
				[-v {1,2,3,...,40}]
				[-l {L,M,Q,H}]
				[-p picture_file]
				[-c]
				[-con contrast]
				[-bri brightness]
				Words

• arguments -h, -v and -l is as mentioned above.

  参数 -h, -v 和 -l 如上文述。

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#1 -p
python myqr.py https://github.com -p github.jpg

• The -p is to combine the QR-Code with the following picture which is in the same directory as the program. The resulting picture is black and white by default.

  参数-p 用来将QR二维码图像与一张同目录下的图片相结合，产生一张黑白图片。

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#2 -c
python myqr.py https://github.com -p github.jpg -c

• The -c is to make the resulting picture colorized.

  加上参数 -c 可以使产生的图片由黑白变为彩色的。

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#3 -con, -bri
python myqr.py https://github.com -p github.jpg [-c] -con 1.5 -bri 1.6

• The -con flag changes the contrast of the picture - a low number corresponds to low contrast and a high number to high contrast. Default: 1.0.

  参数-con 用以调节图片的对比度，1.0 表示原始图片，更小的值表示更低对比度，更大反之。默认为1.0。

• The -bri flag changes the brightness and the parameter values work the same as those for -con. Default: 1.0.

  参数 -bri 用来调节图片的亮度，其余用法和取值与 -con 相同。

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Animated GIF QR-Code 动态二维码

The only difference from Artistic QR-Code mentioned above is that you should input an image file in the .gif format. The you can get your black-and-white or colorful qr-code.

动态二维码与上述的带图片的二维码的生成方法没什么区别，你只要采用 .gif 格式的图片即可黑白或者彩色的动态二维码。

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Tips 提示

• Use a nearly square picture instead of a rectangle one.

  请采用正方形近似正方形的图片

• If the size of the picture is large, you should also choose a rightly large -v instead of using the default one.

  建议在图片尺寸大的时候使用 -v 的值也应该适当变大。

• If part of the picture is transparent, the qr code will look like:

  You can change the transparent layer to white, and then it will look like:

  如果图片有透明无色部分，最终效果是：

  你可以将透明部分修改成白色，最终效果会变成

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Supported Characters 可用字符

• Numbers: 0~9

  数字 0 到 9

• Letters: a~z, A~Z

  大小写的英文字母

• Common punctuations:

  常用英文标点符号和空格

  · , . : ; + - * / \ ~ ! @ # $ % ^ & ` [ ] ( ) ? _ { } | and  (space)

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Dependencies 依赖库

• pillow
• numpy
• imageio

You can use pip install -r requirements.txt to ensure you have all dependencies.

可以使用命令pip install -r requirements.txt 来安装所有依赖的库。

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Environment 运行环境

• Linux, Python 3
• Windows, Python 3