Microtek ScanWizard EZ, Reference Manual

Page: 92 / 121

52 Microtek ScanWizard EZ - Professional Mode Reference Manual
C. Channel
The channel button lets you control the shadow and highlight settings for a
particular color channel (red, green, or blue), or for the All/Master channel (red,
green, and blue simultaneously).
D. Input, Count, Percent
These figures provide information about the histogram. The figures will appear
only when the cursor is on the histogram or if a slider is being moved.
• The Input value indicates the color value of the data displayed in the histo-
gram.
• The Count value indicates the number of pixels at the Input value. If Input
value is 2 and Count value is 1300, then there are 1300 pixels in the image at
the Input value of 2.
• The Percent value is the percentage of all pixels in the image where color
value is less than or equal to the input value. For example, if Percent is 15%
and Input value is 2, it means that 15% of all pixels in the image have a value
of 2 or less.
E. Setup button
This button provides you with advanced controls for setting the white/black
clipping points, as well as for determining the output levels for the white/black
points on your printer.
F. Pickers
The Pickers can be used instead of the sliders to set the Black and White points,
based on color values in the preview image. The Picker on the left sets the Black
point; the Picker on the right sets the White point.
• To set the White point: Click the Picker on the right, then click on the
preview image to define the reference point.
• To set the Black point: Click the Picker on the left, then click on the preview
image to define the reference point.
G. Auto button
The Auto button automatically judges the darkest and whitest points and clips
excessive black or white points. The clipping percentage of the white/black
points is accessible by clicking the Setup button.