python各个平台zbar安装

zbar 可以解析 qrcode

不过安装过程可是艰辛

 本地开发用mac，生产服务器用ubuntu。安装方式不同。整理出以下安装方式

Ubuntu 14.04.1 LTS (GNU/Linux 3.8.0-29-generic x86_64)

$ apt-get install libzbar-dev

$ pip install zbar

 

Ubuntu 10.04.4 LTS

apt-get install libzbar-dev

apt-get install python-gtk2-dev

wget http://iweb.dl.sourceforge.net/project/zbar/zbar/0.10/zbar-0.10.tar.bz2

bzip2 -d zbar-0.10.tar.bz2

tar -xvf zbar-0.10.tar

./configure  --without-qt

make

make install

pip install zbar

mac

brew update && brew upgrade

brew install zbar

不要pip install zbar。而是下载这个包，修正了mac下的segmentation fault的bug

https://github.com/npinchot/zbar

python setup.py install

 

 

qrcode解码例子

#!/usr/bin/pythonimport zbarfrom PIL import Imageimport urllibimport cStringIO#图片地址替换成你的qrcode图片地址URL = ('http://example.qiniudn.com/msgimagepicc4WJ-4iTk8.jpeg')# create a readerscanner = zbar.ImageScanner()# configure the readerscanner.parse_config('enable')# obtain image dataimgfile = cStringIO.StringIO(urllib.urlopen(URL).read())pil = Image.open(imgfile).convert('L')width, height = pil.sizeraw = pil.tostring()# wrap image dataimage = zbar.Image(width, height, 'Y800', raw)# scan the image for barcodesscanner.scan(image)# extract resultsfor symbol in image:    # do something useful with results    print 'decoded', symbol.type, 'symbol', '"%s"' % symbol.data# clean updel(image)

原文地址： http://www.cnblogs.com/yemsheng/p/4166988.html