ORIS PDF Tuner Version 4.4.8 User Manual - image2output - Support

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28 Image Filter Functions
Sharpening and Softening Images
1. Open the image (see page 20-6).
Filters can only be applied if all pixels are loaded (see also
page 20-8).
2. If you only want to filter a particular image area, create or select a restricting
mask (see page 22-13).
3. Select IMAGE | FILTERS.
4. Select SHARPNESS in the MENU window.
5. Enter a positive value to sharpen or a negative value to soften.
Entering 0 makes no changes. See also Direct Input (page 29-7).
You can also change values by holding SHIFT and the mouse button
pressed down and moving the mouse vertically.
6. To end the function, click on the image or reselect SHARPNESS.
7. You can compare the modified image with the original. To do so, use
the toggle function SHOW BEFORE or press F4.
Annotations
Values larger than 1 or lower than –1 produce grainy images. This effect
will be compensated partly in the print process. This means that an image
which appears grainy on the screen may look good again in print.
You can also use the brush tool to sharpen or soften specific image areas.
Use the IMAGE | RETOUCH function and select the SHARPEN or
SOFTEN mode. For more details refer to Retouching (page 23-1).
ORIS PDF Tuner Version 4.4.8 User Manual 28-1
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