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In Reply to: I dont understand what a video scalar does posted by thefeds15@yahoo.com on June 30, 2004 at 17:15:16:
Scalers are usually used for fixed pixel projectors, where the scaler scales the image to the panel's native resolution, so that all it does is display what is fed to it.CRT does not need exact pixel matching, so what is frequently used is a doubler or quadrupler. This eliminates the possibility of scaling artifact, which could occur when you are not scaling in exact ratios.
Plus some of it does various noice reduction, color correction, and video/film de-interlacing.
Rear projection are often limited in quality, so sometimes don't benefit from such an expensive unit as compared to its internal ones.
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Follow Ups
- Re: I dont understand what a video scalar does - lwang 20:46:58 06/30/04 (0)
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