User`s guide

4-4 Microtek ScanWizard 5 User’s Guide (Macintosh)
Image Types
ScanWizard 5 supports a variety of image types, including RGB, Grayscale,
and bitmapped (Line Art, and B&W Diffusion).
The three most common image types are described below, and information
on other image types is available in the Supplementary Information section
of the manual.
• RGB Color: RGB (Red, Green, and Blue)
images use three colors to reproduce up to
68.7 billion colors. RGB mode is used for
most color images and is generally the mode
employed for on-screen multimedia
projects. ScanWizard 5 offers 24-bit RGB
and 48-bit RGB color selection. The 48-bit
option is exclusively available for
Microtek’s high-end professional pre-press
scanners.
Zoom tool: Zooms in (enlarges) or
zooms out (reduces) the view of the
preview image. To zoom in, click inside
the image. To zoom out, hold down the
Option key and click the mouse.
Scan Frame tool: Lets you define the area
to be scanned. The area of the overview
or prescan image selected by the scan
frame is the part that is scanned when you
click the Scan button. To resize a scan
frame, drag on the corner or edge of the
scan frame surrounding the image, and
resize the frame to the desired area.
The Toolbar
Pane tool: Scrolls through a zoomed-in
image.
Dropper tool: Lets you use the Informa-
tion window feature of ScanWizard 5,
and also lets you set the black and white
points. For more details, see “Using the
Information Window” in the Supple-
mentary Information section.
The Scan Material icon
Appearance of the icon
when scanning in
negative film mode.
Appearance of the icon
when scanning in
reflective mode.
Appearance of the icon
when scanning in positive
transparency mode.
• Grayscale: Grayscale images use shades of
gray to simulate gradations of color or tonal
values, and contain 8 bits per pixel. The
Grayscale 16-bit option is provided in
ScanWizard 5 for professional pre-press
scanners.
• Line Art: Line Art images are made up of
one bit of color (black or white) per pixel.
Few editing options are available in this
mode, but this mode is useful for images
consisting purely of black and white or even
single colors, such as mechanical drawings,
blueprints, or fine-line illustrations.