Graphics Programs Reference
In-Depth Information
Figure 9-3.
The results of over-sharpening an image
High Pass Sharpening
The High Pass method sharpens an image's edges without affecting the area between them. This is generally
considered a better way to sharpen images than Unsharp Mask, at least in certain instances.
Tutorial 34: Sharpening Using the High Pass Filter
In this tutorial, you'll sharpen the image of the baby, using the High Pass technique. The G'MIC plug-in must
be installed for this lesson.
To sharpen this image, follow these steps:
Open the picture of the baby (
Ch9_baby
) found in the Practice Images folder.
Duplicate the background layer and rename it
Sharpen
(Figure
9-4
).
1.
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