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If you check the "Preview" checkbox, you can execute the real time reflection of the correction effect to the
preview image in the sharpness correction window.
You can select display magnification out of six options; 100%, 66.7%, 50%, 33.3%, 25% and 16.7%. If you
click the "+" button under the preview image, the display magnification of the preview image becomes larger.
If you click the "-" button, it becomes smaller.
If you move the mouse pointer over the preview image, the mouse cursor changes to a hand shape. You can
scroll the preview image to see the other part of the image by dragging it with the hand-shaped mouse
cursor.
You can cancel all kinds of correction performed in the sharpness correction window by clicking "Reset".
The "Degree to be" slide bar control is reset to the "0" location, and it is shown as 0 in the right-hand box.
About Image Frequency (High-Frequency, Low-Frequency):
a (certain) fixed width
in a image
high
low
high
low
Within a (certain) fixed width in a image, when the brightness
change is shown as the left-hand figure, the number of waves
included within a (certain) fixed width is called "Frequency".
The part where peaks and troughs appear frequently creating
fine pitches as the upper left-hand figure shows is called "High-
Frequency", and, within the same width, the part where peaks
and troughs appear less frequently creating coarse pitches as
the lower left-hand figure shows is called "Low-Frequency".
Therefore, you can get the target effect by selecting the
frequency contained the most in the part where you wish to
emphasize with the "Frequency to be" slide bar control. It is
recommended to work on your image while checking the
preview image in the sharpness correction window because the
frequency with which you can get the optimum effect depends
on subjects for photography or image sizes.
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SHARPNESS
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