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Message: <blockquote data-quote="gxtracker" data-source="post: 137014" data-attributes="member: 14004">Post Processing is when the video signal is processed in some way after the video stream has been decoded but before it's displayed. De-interlacing is the best example of this: after an interlaced MPEG file is decoded, instead of it being directly displayed onto the screen, you can run a de-interlacing filter to turn that interlaced image into a smooth progressive image.There are other filters that do things like sharpen the picture, modify brightness and contrast, remove noise, etc...</blockquote>