https://developer.apple.com/library/prerelease/ios/#documentation/CoreImage/Reference/CIFaceFeature/Reference/Reference.html#//apple_ref/doc/uid/TP40010976

 

ios5貌似增加了增加了人脸识别功能，有空研究下。只是根据三点做识别是否可行有效呢？有待验证啊。

相关几个OpenCV的链接

http://www.opencv.org.cn/index.php/人脸检测

http://www.cocoachina.com/bbs/read.php?tid=73036&keyword=%CA%B6%B1%F0

 

http://www.cocoachina.com/bbs/read.php?tid-33693.html

https://github.com/niw/iphone_opencv_test

http://niw.at/articles/2009/03/14/using-opencv-on-iphone/en

 

某手写识别系统

http://www.cocoachina.com/bbs/read.php?tid=67255

http://handwritex.com/ 

 

日本人写的开源手写识别引擎，基于gtk

http://tomoe.sourceforge.jp/cgi-bin/en/blog/index.rb

 

http://search.codesoso.com/Search?q=qt手写识别

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效果不错，但是不太准确