Microtek ScanWizard Medi, Справочное руководство

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Microtek ScanWizard Medi Reference Manual 65
A. Zoom Level Display
The Zoom Level Display magnifies your view of an image, much like the Zoom
(Magnify Glass) tool in the Preview window.
The magnification factor in Zoom Level Display is by a factor of 2. Thus, the
magnification levels increase from 100% to 200%, to 400%, to 800%.
To use the Zoom Level Display, click the Zoom box to choose a
zoom or magnification level you wish to use from the drop-
down menu that appears.
B. Mouse Cursor Position
The Mouse Cursor Position (Pixel Position) shows you the cursor position on the
x (horizontal) and y (vertical) coordinates of the axis. This feature is useful for
operations that require very precise measurements and alignment.
C. Color Output Meter
The Color Output Meter is useful if you wish to adjust the shadow and highlight
points of an image.
As you move the cursor over a point in the image, the Color Output Meter will
show the appropriate K values of that point in the image. The significance of the
numbers is explained below.
• There are two numbers shown in the Color Output Meter. The first number
represents the raw color data taken by the scanner; the second number
represents the resulting value after color correction or image enhancement
is applied to the image.
• The values can be anywhere from 0 to 255, with 0 as the black point, 255 as
pure white, and all other values in between corresponding to shades of
varying degrees between black and white.
• The values as a whole represent color info for the sample size selected in
the Color Meter Options button. For instance, if you chose 3 x 3 as your
sample size and your K value reads 23, that shows your K value of 23 is the
average of a 3-pixel by 3-pixel area.
Pixel-value info is useful especially if you are making color corrections based on
color values. Knowing this, you can modify the shadow and highlight points of
an image, then come back to the same point in the image, and verify through the
Color Output Meter that the K values have indeed changed.