Konica Minolta Kodak Scan Station 710 Administration Guide - Page 45

Black and White Settings, Noise Filters

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Black and White Settings The Black and White settings will be grayed out, if your Scan As selection is Color or Grayscale. A-61796 December 2013 Compression - you can select None or Group 4. Conversion Quality -allows you to select Best (iThresholding) or Normal (ATP). • Best (iThresholding) - the Scan Station dynamically evaluates each document to determine the optimal threshold value to produce the highest quality image. This allows scanning of mixed document sets with varying quality (such as faint text, shaded backgrounds, or color backgrounds) to be scanned using a single setting thus reducing the need for document sorting. When Best is selected, only Contrast can be adjusted. • Normal (ATP) (Adaptive Threshold Processing) - separates the foreground information in an image (e.g., text, graphics, lines, etc.) from the background information (i.e., white or non-white paper background). When Normal is selected, you can adjust both Threshold and Contrast. Contrast - adjusts the amount of the image foreground which is kept or attenuated. Decreasing this setting will reduce the amount of noise at the expense of possibly losing faint text. Increasing this setting will help make faint text more visible at the expense of creating more noise. Threshold - aids in controlling the level at which a pixel is considered black or white. Decreasing this setting will make the image appear lighter, and can be used to subdue background noise. Increasing this setting will make the image appear darker, and can be used to help pick up light information. This options range from 0 to 255. Noise Filters - select one of the following options: • Lone Pixel: reduces random noise by converting a single black pixel to white when it is completely surrounded by white pixels or by converting a single white pixel to black when it is completely surrounded by black pixels. • Majority Rule: sets each pixel based on its surrounding pixels. The pixel will become white if the majority of the surrounding pixels are white and vice versa. Image Filters - you can select None or Halftone Removal. Halftone Removal enhances dot matrix text and images with halftone screens (e.g., newspaper photographs). 5-5

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A-61796 December 2013
5-5
Black and White Settings
The Black and White settings will be grayed out, if your
Scan
As
selection is
Color
or
Grayscale
.
Compression
— you can select
None
or
Group 4
.
Conversion Quality
—allows you to select
Best
(iThresholding) or
Normal
(ATP).
•
Best (iThresholding)
— the Scan Station dynamically evaluates
each document to determine the optimal threshold value to produce
the highest quality image. This allows scanning of mixed document
sets with varying quality (such as faint text, shaded backgrounds, or
color backgrounds) to be scanned using a single setting thus
reducing the need for document sorting.
When
Best
is selected, only
Contrast
can be adjusted.
•
Normal (ATP)
(Adaptive Threshold Processing) — separates the
foreground information in an image (e.g., text, graphics, lines, etc.)
from the background information (i.e., white or non-white paper
background). When
Normal
is selected, you can adjust both
Threshold
and
Contrast.
Contrast
— adjusts the amount of the image foreground which is kept
or attenuated. Decreasing this setting will reduce the amount of noise at
the expense of possibly losing faint text. Increasing this setting will help
make faint text more visible at the expense of creating more noise.
Threshold
— aids in controlling the level at which a pixel is considered
black or white. Decreasing this setting will make the image appear
lighter, and can be used to subdue background noise. Increasing this
setting will make the image appear darker, and can be used to help pick
up light information. This options range from 0 to 255.
Noise Filters
— select one of the following options:
•
Lone Pixel:
reduces random noise by converting a single black pixel
to white when it is completely surrounded by white pixels or by
converting a single white pixel to black when it is completely
surrounded by black pixels.
•
Majority Rule
: sets each pixel based on its surrounding pixels. The
pixel will become white if the majority of the surrounding pixels are
white and vice versa.
Image Filters
— you can select
None
or
Halftone Removal
. Halftone
Removal enhances dot matrix text and images with halftone screens
(e.g., newspaper photographs).