• Adobe After Effects

  Umult

  Posted by Nicholas Toth on October 30, 2006 at 7:50 pm

  Anyone anyone can you get unmult for photoshop?
  (yeah I know its an AE forum, but I have it for AE not PS)

  Filip Vandueren replied 19 years, 10 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Filip Vandueren

  October 31, 2006 at 1:13 am

  to unmult in photoshop:

  – open the image
  – if it’s a background layer, make sure it ‘floats’ (just double click it)
  – deselect all
  – switch to channels, then shift-command click (or shift-ctrl click on win) first on the Red, then the Green, then the Blue Channel, to add their brightnesses to the current selection.
  – switch to layers and with the current selection, add a mask to your layer.
  – apply the mask. (right click)
  – layer -> matting ->remove black matte

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