how would you remove this background?

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how remove shed.jpg

i need remove white shed background in film,  has worked out in every shot except 1 because actor walking in front of shed. ideally put more bushes there, or perhaps make dark.

 

animating mask around character frame frame seems inneficcient way this, , prone imperfections aswell.

 

as side note, shot dslr on gymbal, 3d camera track didnt work managed use 1 point motion track, meaning if put items in there, stick scene ok.

 

any suggestions?

animating mask around character frame frame seems inneficcient way this, , prone imperfections aswell.

that's right. should rotoscope frame frame when it's fast movement mask discrepancies won't show.

 

rotoscoping 1 of toughest things master in ae or in compositing in general, if beginner - got work cut out you. main issue here have roto part of guy that's overlapping insert. no more, no less. not sure want remove. 1 or 2? either way mask need.

in nutshel: create patch (a replacement want remove) either in ps or in ae, need track original footage , place in right spot, , have roto guy.

 

so got patching, tracking, , roto

 

patching - technique known creating clean plate. workflow export still frame ps, fix it, , bring ae.

 

tracking - if there camera move, need track shot , place patch in place

 

roto - have roto part of guy that's overlapping patch.

 

about masking techniques there couple of techniques choose from. since it's separating image noisy background suggest examining these:

  1. roto brush: roto brush , refine matte in after effects
  2. rotoscoping mask use of keyframes, , tracking: managing , animating shape paths , masks in after effects + tracking , stabilization motion workflows in after effects. rick gerard has cool tutorial demonstrating technique rotoscoping+tracking make effective roto: simple roto - youtube
  3. rotoscoping in mocha: here's author, suggest of tutorial - 3 part series, here's first part: rotoscoping mocha ae part 1: tools create , export shapes - youtube . amazingly fast , effective mary poplin great too: mocha ae creative cloud rotoscoping demo mary poplin @ siggraph 2013 - youtube


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