Operation Manual

• Click the left or right arrow in the Intensity value slider to adjust the sharpening by 5
percent increments, or drag in the value field. The left arrow decreases the sharpening
effect on the image, and the right arrow increases it.
• Double-click the number in the Intensity value slider, then enter a value from 0.0 to 1.0
and press Return.
Use the Intensity slider and value
slider to adjust the strength of the
sharpening adjustment.
A value of 0.0 applies no sharpening adjustment to the image. A value greater than 0.0
increases the sharpening adjustment applied to the image.
4 Adjust the threshold for determining which pixels are edges and which ones are not by
doing one of the following:
• Drag the Edges slider to the right to increase the area over which the sharpening effect
is applied, and drag the Edges slider back to the left to reduce it.
• Click the left or right arrow in the Edges value slider to adjust the area over which the
sharpening effect is applied by 5 percent increments, or drag in the value field.
• Double-click the number in the Edges value slider, then enter a value from 0.0 to 1.0
and press Return.
Use the Edges slider and value
slider to adjust the threshold
of the sharpening adjustment.
A value of 0.0 applies no sharpening adjustment to the image. A value greater than 0.0
increases the number of pixels that qualify as edges.
Note: If you observe digital noise beginning to increase in flat areas of the image (areas
with little or no contrast), decrease the Edges parameter setting.
5 For maximum accuracy, the Edge Sharpen adjustment sharpens the image in three passes
that appear to occur simultaneously—an initial sharpening pass, where a majority of the
sharpening occurs, followed by two subsequent sharpening passes. These subsequent
passes are called falloff. Adjust the amount of sharpening applied in the subsequent
sharpening passes by doing one of the following:
• Drag the Falloff slider to the right to increase the percentage of the original sharpening
that’s applied during the subsequent sharpening passes, and drag the slider back to
the left to reduce it.
• Click the left or right arrow in the Falloff value slider to adjust the falloff percentage by
5 percent increments, or drag in the value field.
577Chapter 17 Making Image Adjustments