"If you don't have the original, look on an external vectorscope, and
magnify it. If the signal shows a bunch of blocks, that is digital 'noise" or compression artifacts."
That's a great tip. I'm use to seeing a sort of lattice network in the vector display when using compressed formats like mini dv etc... Is that what you mean by blocks? The lattice looks like lines that form blocks so I'm guessing that's the same thing you're describing.
--- In Avid-L2@yahoogroups.com, "Terence Curren" <tcurren@...> wrote:
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> --- In Avid-L2@yahoogroups.com, "ripvanmarlowe2000" <kwikpasta@> wrote:
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> <<i look at it on my grade 1, my JVC DTR24L4D HD LCD>>
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> Grade 1? What does that really mean?
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> Don't take offense please, I was one of the first to say the JVC was the best bang for it's buck at the time it came out. But that was a while ago, and I still hung on to my CRTs as the LCDs (including JVC) weren't good enough, especially in the blacks.
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> <<Other than by pure visual inspection and a monitor just showing the blue signal are there any other ways to test for noise in an image?>>
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> Yes. Take a still from the original source, and a still from the final master, comp them both in photoshop and use "difference" to see what has been added in the noise.
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> If you don't have the original, look on an external vectorscope, and magnify it. If the signal shows a bunch of blocks, that is digital 'noise" or compression artifacts.
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