D-Link DSM-320RD Manual - Page 114

Glossary (continued) 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 graphics interchange format, 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 Joint Photographic Experts Group, 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 Portable Network Graphics, 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 Tagged Image File Format, 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, grayscaled, or color. Files in TIFF format often end with a .tif extension. 114