A-61133 March 2003 4-15
6. Contrast. Select a Contrast setting from Low ( ) to High ( ) or
enter the contrast value in the text field. Valid values are 0 to 255. For
gray scale images only.
• A low contrast value produces a scanned output of mostly
midtones (more subtle change in gray levels are detected).
• A high contrast value produces a scanned output of mostly
blacks and whites (only large changes in gray levels are
detected).
7. Brightness. Select a Brightness setting from Low ( ) to High ( )
or enter the brightness value in the text field. Valid values are 0 to
255.
• A low brightness value produces a darker image.
• A high brightness value produces a lighter image.
8. Despeckle. Select a Despeckle value to reduce the amount of noise
or stray spots (specks, etc.) on an image. Select a value of 0, 1 or 2
from the list box or use the slide bar to make a despeckle selection.
The value you select will depend on how clean or speckled the
image is. If there are no specks on the image, select 0. Despeckle
is for bi-tonal images only.
9. Scan Output. Select the desired Scan Output depending upon the
type of images in the application.
• Bi-tonal: each image will be processed as a single-page TIFF
file using CCITT Group 3 or 4 compression (for black and white
images).
• 16 gray: each image will be processed as a single-page TIFF file
using JBIG compression (for 16-level gray scale images).
• 256 gray: each image will be processed as a single-page TIFF
file using JPEG compression (for 256-level gray scale images).
NOTES:
• For Duplex Processing, the Scan Output setting must be the
same for both the Front and Back settings.
• When Film View is selected as the Scan Area, it is suggested
that you select 256 gray as the Scan Output.
10. Sharpening. Select a Sharpening option.
• Normal: used to accentuate the fine details of an image. Normal
is typically used to enhance the detail of an image which
contains small print.
• Low: used to enhance images containing dot matrix text and/or
images printed with shaded or colored backgrounds using
halftone screens. This option reduces background noise.
• Photo: if the image is comprised mainly of photographs.
• Photo & Text: if the image is a mix of text, line art, and
photographs (i.e., for check camera-sorter films).
• Text: if the image is mostly text.
