Done ! Testing and not working :) master
[photoenhancer] / src / filters / grey /
drwxr-xr-x   ..
-rw-r--r-- 7710 Makefile
-rw-r--r-- 380 grey.pro
-rw-r--r-- 1007 greyfilter.cpp
-rw-r--r-- 210 greyfilter.h