Usually you must uncompress an image if you want to work with it. A compression scheme that works in such a way so as to prevent any loss of data while compressing the image, and thus preventing any degradation of the image, is called lossless . A compressor that loses data every time an image is compressed is called lossy . A lurk is a person who goes around looking at all the Usenet newsgroups or chat rooms without participating in the conversation or posting a message. However, the negative connotation that we apply to the word does not necessarily apply online.
Most people lurk when they are new to a group until they are familiar with the scope or the rules.
Lynx is a text only browser which is included on UNIX operating systems. When viewing pages with lynx, the view is reminiscent of the WWW's predecessor, gopher.