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Creating Unsharp Masks
Step 1—Select a color
Select a color from the color pop-up menu. The mask you cre-
ate will be applied only to edges where the selected color pre-
dominates. To create a mask that applies to all colors, select
All
.
Step 2—Set intensity, halo width, and threshold
Select values for intensity, halo width, and threshold using the
sliders, or enter values directly in the text boxes to their right.
Changes made in the Unsharp Mask palette only apply when
the check-box at the top left of the palette is checked.
Step 3—Check the results
To compare the effects of the Unsharp Mask with the unmodi-
fied image, click the check box at the top left of the Unsharp
Mask palette to turn the effects of Unsharp Mask on or off.
Step 4—Create additional masks
Repeat steps 1–3 to create additional masks for different col-
ors. As new masks are created, they will be added to the end of
the Unsharp Mask list. Masks will apply in the order listed. To
change the order in which the masks apply, select a mask in the
Unsharp Mask list and click the up arrow to move it up in the
list, or the down arrow to move it down. To delete an Unsharp
Mask from the list, select it and click the
button.
Reference: The Tool Chest
