Plustek OpticFilm 8200i Ai User Manual page 27

 Resolution - Resolution is measured in dots per inch (dpi). The higher the
resolution, the more detailed the image, and the more memory and drive space
the image will use.
 Filter - Filters help you improve your scans by allowing you to sharpen
images as well as remove excessive dots and distortion.
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Average: Determines the medium depth of an image and averages
adjacent pixels to make images appear softer.
Blur: Lets you dull the edges within an image, and decreases the
contrast by making dark edges lighter and light edges darker.
Blur More: Adds additional blurring.
Sharpen: Allows you to sharpen the edges within an image by making
the edges in an image more distinct. The Sharpen filter also
increases contrast by making dark edges darker and
surrounding light edges lighter.
Sharpen More: Adds additional sharpening.
Unsharpen: Sharpens the edges in an image to remove the blurriness.
 Brightness - This is the amount of light that is concentrated onto a
document while it is being scanned.
 Contrast - Contrast adjusts the tonal range of an image by lowering mid-
tone values and increasing values for high and low tones.
 Scan – Scans and saves the transparency slide or negative film using the
current settings.
 PreScan – Performs a prescan to preview the transparency slide or negative
film.
 Exit – Exits the program.
 Help – Opens the Online Help.
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