Konica Minolta Kodak i780 Image Processing Guide - Page 69

Color options, Majority Rule

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Noise Filter - occasionally small dots or specks appear in the background of a scanned image. These specks increase file compression size and usually contain no image information. Using the Noise Filter on documents containing very fine detail (e.g., the dot on an "i" in 4-point type) may cause information to be lost. It is recommended that you do not use the Noise Filter when scanning documents with text smaller than 7-point type. Noise Filter can be used with black and white images only and is Front/ Back independent. Choose None, Lone Pixel or Majority Rule. • Lone Pixel: reduces random noise on black and white images by converting a single black pixel surrounded by white to white or by converting a single white pixel surrounded by black to black. • Majority Rule: sets the central pixel value in a matrix according to the majority of white or black pixels in a matrix. Color options 4-8 No Noise Filter Used Lone Pixel JPEG (Joint Photographic Editor Group) Quality - this group developed and lent their name to a file compression standard for color and grayscale images that is widely used by scanners, digital cameras and software applications. On Microsoft Windows-based systems, a file with the extension .jpg has normally been compressed using this standard. JPEG compression offers a JPEG quality of Draft, Good, Better, Best and Superior. • Draft: smallest file size with draft image quality. • Good: larger file size with good image quality. • Better: larger file size with better image quality. • Best: larger file size with the best image quality. • Superior: largest file size with superior image quality. Color Correction - select one of the following based upon the documents you are scanning: • Mixed: when the documents you want to scan contain a mix of text, business graphics (bar graphs, pie charts, etc.) and line art. • Pictures: when the documents you want to scan are comprised mainly of photos. • Text: when the documents you want to scan contain mostly text. A-61504 October 2007

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4-8
A-61504
October 2007
Noise Filter
— occasionally small dots or specks appear in the
background of a scanned image. These specks increase file
compression size and usually contain no image information. Using the
Noise Filter on documents containing very fine detail (e.g., the dot on
an "i" in 4-point type) may cause information to be lost. It is
recommended that you do not use the Noise Filter when scanning
documents with text smaller than 7-point type.
Noise Filter can be used with black and white images only and is Front/
Back independent. Choose
None
,
Lone Pixel
or
Majority Rule
.
•
Lone Pixel:
reduces random noise on black and white images by
converting a single black pixel surrounded by white to white or by
converting a single white pixel surrounded by black to black.
•
Majority Rule:
sets the central pixel value in a matrix according to
the majority of white or black pixels in a matrix.
Color options
JPEG
(Joint Photographic Editor Group)
Quality
— this group
developed and lent their name to a file compression standard for color
and grayscale images that is widely used by scanners, digital cameras
and software applications. On Microsoft Windows-based systems, a file
with the extension .jpg has normally been compressed using this
standard. JPEG compression offers a JPEG quality of
Draft
,
Good,
Better, Best
and
Superior
.
•
Draft
: smallest file size with draft image quality.
•
Good
: larger file size with good image quality.
•
Better
: larger file size with better image quality.
•
Best
:
larger file size with the best image quality.
•
Superior
:
largest file size with superior image quality.
Color Correction
— select one of the following based upon the
documents you are scanning:
•
Mixed
: when the documents you want to scan contain a mix of text,
business graphics (bar graphs, pie charts, etc.) and line art.
•
Pictures
: when the documents you want to scan are comprised
mainly of photos.
•
Text
: when the documents you want to scan contain mostly text.
No Noise Filter Used
Lone Pixel