Painting in Color Changes: History Brush Application
Sometimes it is easiest to get the color you want in different portions of an image by combining
different corrections of the same image. You may find that making one part of
an image look good comes at the expense of absolutely ruining the color in the rest of your
image. This little dilemma might make it seem that there is no way to make a compromise
between the two without damaging the image color or making complicated selections.
As it turns out, you don’t have to settle for a compromise. There is a way to make
changes to your image—even drastic ones—and store those changes so you can use them
later. Using techniques and Hidden Power tools, you can imitate what is called Snapshots
in Photoshop and store different versions of your image in layers. Later, you can use these
layers to paint back in only a portion of the color.
Using Hidden Power tools, you can store a version of your image in a way similar to
taking snapshots by double-clicking the Snapshot tool found in the Power_Adjustments
category of Effects. The stored versions (or snapshots) are saved in layers, and the visibility
is turned off so that you can return to them as needed. Using layer masking will allow you
to easily imitate the History Brush: you can group the snapshot to an empty layer, turn on
the visibility for the snapshot, and use brushes to fill in the mask. As the mask layer
becomes solid, it paints back changes stored in the snapshot.

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