Zoom into the area you want to restore.

Click the Restore Touch-up Tool and on the horizontal toolbar, set the brush size appropriate to the area you want to work on.
Click and drag to restore pixels, exposing more of the foreground area.
To increase or decrease the opacity of the restored areas, adjust the Hardness setting (located on the horizontal toolbar).
Higher values will result in more pixels being restored, producing a harder, more defined edge.

Lower values will produce a softer, more blended edge.
