Graphics Programs Reference
In-Depth Information
Figure 9-23. You can get some interesting special effects with the Adjustment commands, whether
you apply them as filters or Adjustment layers. (If you want to run them as filters, it's not a bad
idea to do so on a duplicate layer.) Top row (left to right): The original photo, Invert, Equalize.
Bottom row (left to right): Posterize and Threshold.
In most cases, you use these adjustments as steps along the way in a more complex treatment
of a photo, but they're effective by themselves, too. Here's what each one does (listed in the
order they appear in the Filter menu):
▪
Equalize
makes the darkest pixel in the photo black and the lightest one white, and then
redistributes the brightness values of all the colors in the photo to give them all equal
weight. If you have an active selection when you run this filter, Elements brings up a dia-
log box that lets you choose whether you want it to equalize the whole photo or equalize
it based on your selection. For example, say you have an image of dark woods and a
