COMPUTER NETWORKING

Detailed explanation-1: -The Graphics Interchange File (GIF), an image format used on the internet, is generally compressed using lossless compression. RAW, BMP and PNG are also lossless image formats. Lossy compression is mainly used to compress: images.

Detailed explanation-2: -First, it reduces the number of colors of color-rich images, thereby reducing the number of bits needed per pixel, as just described. Second, it replaces commonly occurring patters, especially large areas of uniform color, with a short abbreviation. Thus, GIF is “lossless” only for images with 256 colors or less.

Detailed explanation-3: -The GIF format uses LZW compression, which is a lossless compression method. However, because GIF files are limited to 256 colors, optimizing an original 24‑bit image as an 8‑bit GIF can subtract colors from an image.

Detailed explanation-4: -Lossy compression refers to compression in which some of the data from the original file (JPEG) is lost. The process is irreversible, once you convert to lossy, you can’t go back. And the more you compress it, the more degradation occurs. JPEGs and GIFs are both lossy image formats.