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Evaluating the quality of video… the criteria?
I’m a PHOTOSHOP user from way back, but am a newbie at video.
Specifically, I would like to know more about how to evaluate the relative quality of a video image.
As I encode using different codecs (and codec configurations), I’ll get all manner of results… Some are a little more THIS, some are a little more THAT…
I want to learn to evaluate the quality of the videos I’m getting. I’m not talking the more artistic elements, such as Composition; rather, I’m thinking about the more superficial qualities, such as good blacks, good whites, good motion following, artifacts, noise, etc.
Is there a good resource online that camn help me to attune my eye to these characteristics?
Thanks, DAVID
The only things which matter in life are Art and Children. (Georges Seurat)
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1 Reply
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I’m not sure how much experience you already have, so I’ll thow in the very basics.
Once a video is in the box, quality may be something you are stuck with. Things like noise and overexposure for example can’t really be fixed afterwards, though you can try softening the entire image. But it still will be your enemy at encoding time, since most encoders look for static areas to compress.
The waveform monitor is your best tools here.
Some good basic information here:
And of course a calibrated broadcast monitor as well.
Beyond that, hands on is really the only way to get a trained eye.
For encoding techniques, you may want to post in the compression forums as well.
Vince
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