User`s guide

E-10 Microtek ScanWizard 5
When to use high resolution
High resolution is important if you're processing an image through a high-end
color system that carries continuous tone data from the scanner through the
final film output. This is because high resolution can improve the sharpness and
clarity of the dots that make up the image.
When to use interpolated resolution
Interpolated resolution is useful for scanning line art or enlarging small originals.
• For line art: Set the resolution equal to that of your output device. For
instance, if you're producing line art to be printed by a 1200-ppi imagesetter,
you can interpolate resolution to up to 1200 ppi for superior results. This
will produce smoother lines and eliminate some of the jaggedness character-
istic of line art scans.
• For enlarging small originals: Let's assume that you scan a 1" x 2" photo-
graph at 300 ppi, and that your maximum optical resolution is 300 ppi too.
To enlarge the image to two times the original size without loss of detail,
interpolate the resolution to 600 ppi. This way, the image retains clarity and
sharpness even if the print size was doubled.
Scaling
Scaling is the process of creating larger or smaller images in your scanning
software so that you need not resize the images later when they are delivered to
your image-editing program.
In the scanning software, scaling has an inverse relation to resolution: The lower
the resolution, the larger the image can be scaled. At the highest resolution,
images can only be scaled smaller.
To illustrate the use of scaling, assume you scanned a 2" x 2" image at 300 ppi.
To double image size to 4" x 4" without loss of detail, increase scaling to 200%
and maintain resolution at 300 ppi.
This is the same as scanning the image at 600 ppi at 100% scaling — and then
using your image-editing software to enlarge the output. In the example above,
image size was doubled through scaling alone without having to use the image-
editing software.