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Key terms: noise filter dbx signal pixel noise reduction dnr tape value dolby audio recording detail gm removed hiss grain chroma analog median gaussian algorithm purpose frequency decode encode camera blurring edges hence smoothing playback noise reduction system diffusion editing dolby b each pixel equation luminance noise threshold nonlinear photographic magnetic tape variations more noise dynamic noise median filter chroma and luminance salt and pepper noise noise reduction algorithm Search external links cited by footnotes on Wikipedia page Noise reduction: |
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