36
Cutting Out the Noise
36.1 Can’t See the Forest for the Trees?
Removing noise from your content is akin to film restoration; whether it is worthwhile depends on the value of the footage. Removing the noise will help reduce the work the compressor has to do to attain a low bit rate.
36.1.1 Weird Artifacts and Problems
There are a few nasty “gotchas” that may present themselves when you are processing source footage ready for compression. They have been known and identified for years. Most of them are inherited from the analog domain that older footage is derived from. I will enumerate them here and describe what causes them and whether anything can be done to alleviate them.
36.1.2 Vision Problems and Imaginary Artifacts
Some visual artifacts ...
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