about "Special treatment of open mouth and eyes"

[dypromise]

I read your paper about your special treatment for eyes, I am confusing about the real operation of sentence “To improve that, a mask with increased weight of Gapp (d) is used to guide the transfer of lighter texture areas of the style exemplar to the teeth” .In my opinion , Is that mean ： 1）add another independent guide channel, which is the mask of eye and mouth. 2) Use the mask(of eye and mouth) to matte the Gapp to produce a new guide channel with only eye and mouth in it, and the relevant weight is set higher than Gapp guide. 3) directly use the 0/255 mask of eye and mouth as a new guide. which one is correct? or all wrong? I‘ll appreciate any replys, Thanks!!!!