CyberAgent/android-gpuimage — pull request #80 by edwardinubuntu (2013-10-16 04:40:10+00:00)
Title: Feature/gpu image color balance filter

I referenced from GPUImageColorBalanceFilter https://github.com/liovch/GPUImage/commit/fcc85db4fdafae1d4e41313c96bb1cac54dc93b4 iOS GPUImage project and implement it in here..