D-Link MediaLounge DSM-320, User Manual

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10
Photo
BMP : The standard bit-mapped graphics format used in the Windows
®
environment . By convention, graphics files in the BMP format end with a .BMP
extension .
GIF : Pronounced jiff or giff and stands for g raphics i nterchange f ormat, it is a
bit-mapped graphics file format . GIF supports color and various resolutions . It
uses data compression , but it is limited to a 256-color palette.
JPG
: Short for
J
oint
P
hotographic
E
xperts
G
roup, and pronounced jay-peg.
JPEG is a lossy compression technique for color images. Although it can
reduce files sizes to about 5% of their normal size, some detail is lost in the
compression.
JP2 : JP2 is the file extension for the new image format called JPEG2000 based
on the latest image compression technology.
PNG : Short for P ortable N etwork G raphics, is a bit-mapped graphics format
similar to GIF . In fact, PNG was approved as a standard by the World Wide
Web consortium to replace GIF because GIF uses a patented data compression
scheme. In contrast, PNG is patent and license-free.
TIFF : Acronym for T agged I mage F ile F ormat, and is one of the most widely
supported file formats for storing bit-mapped images on personal computers .
TIFF graphics can be any resolution , and they can be black and white, gray-
scaled , or color. Files in TIFF format often end with a .tif extension.
Glossary (continued)