边缘羽化算法，利用opencv实现。当前后背景颜色差值较大时，具有好的效果。-Edge feathering algorithm, using opencv implementation. After the background color of the current difference is large, with good results.

各种android滤镜效果的算法， 有冰冻、熔铸、连环画、柔化美白、照亮边缘、羽化、缩放模糊、LOMO、电影、反色等特效-Various filter effects android algorithm has frozen, casting, comics, soften whitening to brighten the edge feathering, zoom blur, LOMO, movies, anti-color and other special effects

The guided filter can be used as an edge-preserving smoothing operator like the popular bilateral filter, but has better behaviors near edges. The guided filter is also a more generic concept beyond smoothing: it can transfer the structures of the gu