[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: Legal RGB



...A few companies in addition to H-P have video limiter boxes that will
keep luminance and/or chroma levels within specified limits.  They all
work fairly well with images that have few high frequency components,
like color bars.  Differences start to show up in images with lots of
detail.  Thanks to Mr. Nyquist, you can't just simply clip digital
component video to some arbitrary level and expect to see a
corresponding change once it gets encoded to composite analog video....


Hans,

How many of these boxes utilize oversampling? Wouldn't that reduce the 
high frequency problems while making Mr. Nyquist(RIP) happy?

Randy Reck
Encore Santa Monica