3-16
A-61580 November 2007
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.
The options range from 0 to 255. The default is 90.
NOTE: This is only available for
Conversion quality: Normal
and
Conversion quality: Draft.
Filters
• Noise
- (none)
-
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 visa versa.
• Image
- (none)
-
Halftone Removal
: enhances dot matrix text and images made
with halftone screens (e.g. newspaper photographs).
Invert Colors
— allows you to select how the black pixels will be stored
in the image. By default the black pixels are stored as black and the
white pixels are stored as white. Turn this option on if you want the
black pixels stored as white and the white pixels stored as black.
No Noise Filter Used
Lone Pixel
