| Address |
A number
that identifies the memory location of a peripheral device. |
| Brightness |
The setting
that determines the overall whiteness of the image for scanning. |
| Contrast |
A comparison
between the lightest and darkest part of an image. Low contrast indicates
a very gray image, while high contrast represents highly defined differences
between light and dark. |
| Dithering |
Creating
dots of different patterns and sizes that fool the eye into seeing various
shades of gray. |
| DPI |
Dots Per
Inch, a measurement of resolution. |
| Gray
Scale |
A range
of grays with regular density intervals from white to black. A gray scale
image is an image that contains various levels (or shades) of gray. |
| Halftone |
The method
of making a black and white image appears to have shades of gray. |
| Highlight |
The brightest
area in an original or an image represented in a halftone by the smallest
dots or the absence of dots. |
| Histogram |
Graphs the
gray scale values distribution of a scanned image. |
| Image |
The bitmapped
result of scanning an original. |
| B/W |
An image
consisting only of black and white pixels. |
| Original |
The pictorial
source in its original form, for example, artwork, a photograph or a transparency. |
| Pixel |
A single
dot on a computer monitor or digital image. |
| Preview
Size |
A control
used to limit the length of previewed image in the scan area. Reducing
the length of the preview image saves time. |
| Preview
Window |
The view
area in the Scanner dialog box, representing the glass plate of the scanner. |
| Photo/Document
Image Type |
A scanning
mode used to scan non-transparent pictures, graphics and so on. |
| Resolution |
A measure
of the fineness of detail that a device can record or produce. The higher
the resolution, the finer the detail. |
| Shadow |
The darkest
area in an original or an image represented in a halftone by the largest
dots. |
| TIFF |
An industry
standard image file format supported by many applications. |
| Transparency
Adapter |
An adapter
installed on a scanner to scan slides, film, and X-rays. |
| Transparency
Scanner Type |
A scanning
mode used to scan transparency pictures or graphics such as slides, films,
and X-ray films. |
| TWAIN |
A protocol
developed by leading imaging hardware and software companies to make it
easier to integrate input peripherals and applications. |
Image
Enhancement