Specifications
The Digital Fine Print Course
Editing a Fine Print
Advanced Unsharp Masking
Photoshop’s Unsharp Mask filter increases edge contrast and therefore apparent sharp-
ness, which appears as light and dark outlines around boundaries in the image. The exact
degree of sharpening (outlining) the image requires will need to be determined experi-
mentally for each printer at the final print size according to these parameters:
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Copyright Les Walkling 2012
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Blended on Lighten
Blended on Darken
Variable Layer Opacity, Layer Masks and/or
Layer Styles can further enhance the effect.
Amount:
The darkness and lightness of the outlines.
Radius:
The width of the dark and light outlines
Threshold:
The number of levels of tonal difference across
a boundary before the outlines are applied.
Increasing the Threshold to 10 levels removes most
of the sharpening from the skin, but not the eyes.
Sharpening a duplicated
image layer and blending
on Lighten (or Darken)
only preserves the light
(or dark) outlines, thereby
also adding lightness (or
darkness) to the image.