Microtek ScanWizard Pro - Page 154

E-6 Microtek ScanWizard Pro for Windows
Optical resolution
The true resolution of a scanner and is the key factor in determining the amount
of detail visible in an image. Optical resolution is one type of resolution; the
other is
interpolated resolutioninterpolated resolution
interpolated resolutioninterpolated resolution
interpolated resolution.
Pixel
A unit used by the computer to describe picture elements and to represent
image information in a digital format. An image file, for instance, is simply a
representation of hundreds (or thousands) of pixels arranged in a grid.
Printing methods
The type of printing method you choose should be tailored according to your
scanned image. For instance, low-resolution black-and-white printers are good
for producing text and
line artline art
line artline art
line art, but they are not suitable for
grayscalegrayscale
grayscalegrayscale
grayscale. For
grayscale, use higher-resolution printers such as the ones capable of producing
600 to 1200
dpidpi
dpidpi
dpi. To print
color imagescolor images
color imagescolor images
color images, you can choose from ink jet/desk jet
color printers, dye-sublimation printers, or printing presses.
Resolution
The level of detail in an image, expressed in dots per inch or
dpidpi
dpidpi
dpi. The greater the
dpi number, the higher the resolution and the resulting file size. There are two
types of resolution:
optical resolutionoptical resolution
optical resolutionoptical resolution
optical resolution, and
interpolated resolutioninterpolated resolution
interpolated resolutioninterpolated resolution
interpolated resolution.
RGB
The color model in which every color is composed of a varying amount of the
three colors of red, green, and blue.
Saturation
The intensity of a color, or the amount of color in a specific
hue hue
hue hue
hue. For instance,
the image of a bright red apple will appear to be "more red" if the colors are
saturated.
Scaling
The process of creating larger or smaller images in ScanWizard Pro, so that the
images don't have to be resized later when they are delivered to the image-
editing program. Scaling has an inverse relation to
resolutionresolution
resolutionresolution
resolution: The lower the
resolution, the larger the image can be scaled. At the highest resolution, images
can only be scaled smaller.