https://borisfx.com/documentation/sapphire/ae/flickermatchmatte/
Sapphire Plug-ins for After Effects: FlickerMatchMatte | Boris FX
S_FlickerMatchMatte Adds flicker to the Source clip using the flicker from a second Match clip, in the areas specified by a Matte. To use this effect, select a...
plug insafter effectssapphireborisfx