目的是想在服务器端生成某个网页的缩略图。Google了好久，发现一个好开源东西：CutyCapt。
系统：CentOS 5.5
官网：http://cutycapt.sourceforge.net/
依赖：QT http://www.qtsoftware.com/
附缩略163.com图，虽然说字体渲染的效果一般，但是看起来还凑合 :)
首次是在Debian下测试的，很顺利。换了CentOS不是太爽。具体安装和使用步骤如下：
1. 下载RPM包
(64位) wget http://dl.atrpms.net/el5-x86_64/atrpms/testing/qt44-4.4.3-10_4.el5.x86_64.rpm wget http://dl.atrpms.net/el5-x86_64/atrpms/testing/qt44-x11-4.4.3-10_4.el5.x86_64.rpm wget http://dl.atrpms.net/el5-x86_64/atrpms/testing/qt44-devel-4.4.3-10_4.el5.x86_64.rpm (32位) wget http://ftp.riken.go.jp/Linux/atrpms/el5-i386/atrpms/testing/qt44-4.4.3-10_4.el5.i386.rpm wget http://ftp.riken.go.jp/Linux/atrpms/el5-i386/atrpms/testing/qt44-x11-4.4.3-10_4.el5.i386.rpm wget http://ftp.riken.go.jp/Linux/atrpms/el5-i386/atrpms/testing/qt44-devel-4.4.3-10_4.el5.i386.rpm
2. 安装 qt-devel 依赖包
yum install libXi-devel yum install libXinerama-devel
3. 安装 qt 相关
rpm -ivh qt44-4.4.3-10* rpm -ivh qt44-x11-4.4.3-10* # rpm -e qt-devel --nodeps --allmatches rpm -ivh qt44-devel-4.4.3-10*
4. 修改 /etc/profile，最后并：source /etc/profile
export QTDIR=/usr/lib64/qt44 export QTLIB=/usr/lib64/qt44/lib export QTINC=/usr/lib64/qt44/include export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH export PATH=$QTDIR/bin:$PATH
5. 安装 cutycapt
svn co https://cutycapt.svn.sourceforge.net/svnroot/cutycapt mv cutycapt/CutyCapt /usr/local/CutyCapt cd /usr/local/CutyCapt qmake make
6. 安装模拟 x-server 服务端
wget http://www.flexthinker.com/wp-content/uploads/2009/11/xvfb-run.sh.txt mv ./xvfb-run.sh.txt /usr/local/CutyCapt/xvfb-run.sh chmod u+x /usr/local/CutyCapt/xvfb-run.sh
7. 开始欢快的截图吧
/usr/local/CutyCapt/xvfb-run.sh --server-args="-screen 0, 1024x768x24" /usr/local/CutyCapt/CutyCapt --url=http://www.163.com --out=163.jpg
8. 如果看不到汉字或乱码，需要安装chinese字体
yum install fonts-chinese
9. 由于截屏的是整个网站的页面，只需要第一屏幕
convert -crop 1024x768+0+0 163.jpg 1632.jpg
10. 缩小图片
convert -resize 40%x40% 1632.jpg 1632.jpg
转自：http://blog.163.com/bqj123@126/blog/static/28351334201091955030355/