Plustek Opticpro A320E Flatbed Scanner - Manual (Page 120)

Button Configuration Window Overview 45
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enhancement functions are adjusted. This option allows you to customize the
image setting parameters for your current needs. If you select this option and
don't modify any image setting, the previous image settings will be applied.
· Default -- Use this setting to process the scanned document by the default
values.
· Photo -- Use this setting to process the document contains mostly photographs.
This feature is not available when Black & White is selected as Scan Mode .
· Photo & Text -- Use this setting to process the document contains a mix of
graphics and texts.
· Text -- Use this setting to process the document contains mostly texts. This
setting is available only when Black & White is selected as Scan Mode.
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.
To conserve computer memory and still receive good image quality, we
recommend the following settings.
Document to be scanned Resolution (dpi)
Text (for printing) 300
Text (for faxing) 200
Text (for OCR) 300
Black and white or gray image 150
Color image or photo 100
· These values are only recommendations and should be raised if the
resulting image is rough or you need to view fine details.
· To scan a large-size color image with a higher resolution (usually over
600 dpi) increases scan time and file size substantially and requires