Glossary
User guide 63
Glossary
A
ADF: Automatic Document Feeder
C
CHAP: Challenge Handshake Authentication Protocol
D
dBa: Decibel measured with a "weighting filter."
dBm: A measured power level in decibels relative to 1 mW.
Dongle: A small electronic device that plugs into a USB port.
dpi: dots per inch
DPOF: Digital Print Order File. This file allows the user of a digital camera to define which captured images
on the storage card are to be printed, together with information on the number of copies or other image
information such as paper size, image title text, image orientation, contact information and more.
E
EXIF: Exchangeable Image File Format. A standard for storing interchange information in image files,
especially those using JPEG compression. Most digital cameras now use the EXIF format.
G
Greyscale: A greyscale digital image is an image in which the value of each pixel is a single sample.
Displayed images of this sort are typically composed of shades of grey, varying from black at the weakest
intensity to white at the strongest. Greyscale images are distinct from black-and-white images, which are
images with only two colours, black and white; greyscale images have many shades of grey in between.
J
JPEG: Joint Photographic Experts Group. The name of the committee that developed the image file format.
JPEG is a compressed image file format. JPEG is a "lossy" format, which means some quality is lost when
the image is compressed.
K
Kodak Perfect Touch: Automatically corrects for common image flaws and "mistakes", such as shadows and
backlighting. Kodak Perfect Touch technology also enhances the desirable qualities of pictures, for vibrant
colour and richer detail. This feature is available when scanning or copying pictures. Colour restoration and
Kodak Perfect Touch can be used together to enhance pictures. This feature is not available when scanning
black-and-white pictures.
KPT: Kodak Perfect Touch.
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