D 2013-09-01T11:53:16.383
L ChannelMask
P 5e7c62fbe4bfa3cd32568fb3a9ff94b19643fe03
U user
W 247
Channel Mask
Very simple filter. With bit mask user can enable some of 3 channels: R, G, B. Enabled components are saved in original pixel, other are replaced by 0. For example:
Z 4effe2c8424caadc6c6054cf6ca715f5