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final scan
The actual image, defined by the selection area, that is sent to a
destination such as a file, a printer, the Clipboard, or another program.
final size
The approximate height and width of the final image to be scanned.
flowed text
The Flowed Text option converts output into one column, placing
images as closely as possible to the appropriate text.
framed text
The Framed Text option places text and images in a frame, positioned
as closely as possible to the way they appear in the original document.
Text may be more difficult to edit extensively since the frames may not
expand to hold additional text.
focus
Refers to the sharpness of an image.
front panel
The area on the front of the scanner hardware containing the buttons
for sending an item to a destination or changing settings.
g
gamma
The contrast that affects the mid-level grays or midtones of an image.
Adjusting the gamma of an image allows you to change the brightness
values of the middle range of gray tones without dramatically altering
the shadows and highlights. This applies to both black-and-white
images and color images. The default setting of 2.2 ensures integrity
among computer systems.
grainy
Refers to images, pictures, or photographs in which individual pixels
are relatively large and have areas of white between them, thus
reducing the overall perceived quality of the image. Graininess can
occur when you scan a poor-quality original or reduce the bit depth of
the scanned image by dithering or halftoning.
Graphics Interchange Format (GIF)
A graphic file format that is supported by many programs. Files saved
in this format support 256 colors.
grayscale
An original or output type containing shades of gray, not just black and
white. In a grayscale image, each pixel contains multiple bits of
information, allowing more shades of gray to be recorded and
displayed. Four bits can reproduce up to 16 levels of gray, and eight
bits can reproduce 256 shades of gray. Grayscale is commonly used
for black-and-white original photographs but is also effective in
maintaining shading in pencil drawings.
114


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