Page 128 - Photoshop for Lightroom Users – Scott Kelby 2nd Edition

Tip: Filling in Dropped-Out Areas
If there are areas that have dropped out (are partially see-through) that weren’t fixed by my “duplicate the layer twice” trick, then get the History Brush tool
(Y) from the Toolbar and paint over those areas. This brush is essentially “Undo on a Brush,” so when you paint over those dropped-out areas, it paints
back in how the image looked when you first opened it. Incredibly handy.
Step Nine:
Remember how back in Step Seven you copied that merged layer of your subject into memory? (Sure ya do!) Well, now let’s paste it on top of this
background image (as seen here) by pressing Command-V (PC: Ctrl-V). Then, press Command-T (PC: Ctrl-T) to bring up Free Transform, click-and-
drag a corner point outward to resize her a bit, move her toward the left side of the background, and then just click anywhere outside the bounding box to
lock in your transformation. Now, there’s still work to be done because the color is not right (she’s too warm to really have been shot on that background),
and often, you’ll have a thin, little white fringe along the outside edge of your subject layer that you don’t see until you paste it on a background. So, first,
if you see that little white fringe, go under the Layer menu up top, and all the way at the bottom, under Matting, choose Defringe. When the dialog appears
(seen here on the left), enter 1 pixel and click OK. That will usually do the trick. If that doesn’t work, press Command-Z (PC: Ctrl-Z) to Undo the
Defringe, and try again, but this time, try 2 pixels. Alternatively, if your subject was originally on a very light or white background, from the Matting menu,
try choosing Remove White Matte (or if they came off a very dark background, try Remove Black Matte). Sometimes these work wonders; sometimes they
add a messy area around the subject’s head, and if that’s the case, just Undo.

Step 10:
In our case, Defringe didn’t do much of anything (which is actually pretty rare), but if it doesn’t work, no harm done, just Undo. Okay, now let’s work on
making her overall color tone match the background better. To do that, we first need to bring our selection back around her by pressing-and-holding the
Command (PC: Ctrl) key and, in the Layers panel, clicking directly on our subject layer’s thumbnail. That reloads the selection of this layer (as seen here
where her selection is back in place).