Wikipedia:Cleanup Taskforce/Video scaler
Grammer and structure cleanup More research on the topic will be welcomed. Commando happy!® 06:03, 9 July 2006 (UTC)
Added to User:Tmorton166/Desk RJFJR 02:17, 20 July 2006 (UTC)
Scalers convert video format information to one of many resolutions (480p, 720p, 1080i, 1080p). Scalers, although often confused with converters, perform a different function. Upconvertion is a process by which a signal is altered from an inferior format to a superior one. ie, from composite video to component video, or from component video to DVI or HDMI. Scalers can make standard definition television programming look cleaner and more appealing when viewed on a high definition screen. Scalers come packaged in audio-video receivers or as a stand alone unit.
--SoundAdviceJax 15:14, 25 March 2007 (UTC)
This sentence is not particularly helpful 'Although this increases the resolution of the image it degrades the quality, a video scaler is able to deinterlace a signal and increase the resolution with only minor effect on the quality'. I THINK I know what it's trying to say, but it needs to be reworked. Deinterlacing can effectivey double the resolution. Having some way to do this became desirable with the popularity of large screen TVs and video projectors. Devices to do this called line doublers were popular in more expensive installations. The extent to which they degraded the quality of the interlaced source material is, of course, debatable.
More to the point, there is already an article on deinterlacing. Articles needing to cover this somewhat complex topic would be better served redirecting to that article, rather than making some vague comments on the topic.