Can we regain original video quality after compression with some codec ???
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Last edited by Baldrick; 10th Aug 2012 at 12:56. Reason: New title
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i'd assume "regain" refers to something lost while watching the playback. there wouldn't be any loss watching a lossless codec playback.
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"a lot of people are better dead" - prisoner KSC2-303 -
I compressed a movie down to one byte: 135. Can you tell what movie it was? Can you reconstruct a single frame? Can you reconstruct anything? Once information is gone, it is gone.
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Upsclaling is just making the picture bigger. It doesn't add details. For example, if you start with a 1080p video then reduce it to 720p, then enlarge the 720p video back to 1080p the result will not have all the fine details of the original 1080p video. The best you can hope for is to enlarge the picture and sharpen it a bit without introducing jaggy edges and oversharpening halos.
The best software may be able to upscale 720p to 1080p slightly better than your media player or TV. But it will take a lot of processing time just for a minor increase in picture quality. And you will add another level of compression artifacts. It's usually just not worth it.Last edited by jagabo; 10th Aug 2012 at 13:36.
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None, (unless it's being used/edited with other 1080p material and you want consistency).
Scott -
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