GPUImage

檔案 https://github.com/BradLarson/GPUImage#adding-the-framework-to-your-ios-project

GPUImage導入方法http://www.cnblogs.com/stratrail/p/3204962.html

範例http://beyondvincent.com/blog/2014/01/29/ios-7-blur-effects-gpuimage/