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Thread: Interesting image quality comparison - 700mb XVid, DVD, 720p & 1080p

  1. #16
    Chasing Prey
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    Quote Originally Posted by Neil View Post
    No, what the image it trying to convey is the different image quality in the four different formats.

    The image is trying to show if you showed all four formats on a 1080p TV roughly what you'd get. The DVD for example would pushed into the TV (most likely) at 576p, and the TV would magnify it up to 1080p. Now of course the TV may do some trickery (anti-aliasing?) to make the lower resolution image looked better/smoother on the high resolution that just a dumb magnification, but the basic effect is that those four images give a relatively good indication of the quality of the source being supplied by those four sources...

    Ahh well that's entirely different....if you got a 1080p TV then why would you worry how crap your already crap SD signal is, and bother comparing it? (although I see the Xvid comparison as useful somewhat). It's kinda like saying "this printer is great but look how crap it looks when I print this 200x300 image on a billboard"...well...erm.....

    But there you go, a true comparison....stand in a room with a CRT SD TV and a 1080p HD TV or better still a JVC DTV multicomponent monitor viewing uncompressed HD output of a Sony HDCAM SR deck....mwahaha

    Good fun though, thanks for posting...I love these things....shame we can't take the telly out of the equation though and see the real difference in quality, but hey ho.
    Last edited by SymphonicX; 30-May-2009 at 10:12 AM.
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  2. #17
    Dying PJoseph's Avatar
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    I can tell you this. When we online full rez at 1080 in a suite with HD monitors, it looks great. However, for home - and for the cost and size - 720 is still fantastic. Eventually, everyone will broadcast in 1080 and the TV's will be cheaper, so it won't really matter.

    I do enjoy flipping the channel between the HD broadcast and the SD broadcast on my buddies TV - it's like your watching TV in the future...and then TV from the 80s.

    pJ
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  3. #18
    Survey Time axlish's Avatar
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    Quote Originally Posted by CoinReturn View Post
    Romero's Dawn of the Dead looks phenomenal on BluRay. Day of the Dead...not so much
    Day of the Dead looks fucking amazing, seriously. Pop it in again and re-evaluate. After watching the stunning Day of the Dead transfer on Blu-ray, immediately watch The Many Days of the Dead featurette and pay close attention to the 480i clips of the film and see how weak they look in comparison.

    Dawn of the Dead looks good, but nowhere near the improvement that Day is.

  4. #19
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    Quote Originally Posted by PJoseph View Post
    I can tell you this. When we online full rez at 1080 in a suite with HD monitors, it looks great. However, for home - and for the cost and size - 720 is still fantastic. Eventually, everyone will broadcast in 1080 and the TV's will be cheaper, so it won't really matter.

    I do enjoy flipping the channel between the HD broadcast and the SD broadcast on my buddies TV - it's like your watching TV in the future...and then TV from the 80s.

    pJ
    the company I work for broadcasts in 1080i, which is amazing, unfortunately 1080p is prohibitive at the moment, but no one really cares...lol

    Uncompressed HD on a tape, bitrate = 1gb per SECOND...that's 60 gigs a minute....mad huh? You can fill a 1TB HD with 1hr 40 mins of uncompressed material.

    However as soon as it's out of the deck and into an Avid it gets compressed to fuck, depending on the codec used (we use DNX120 and DVCpro), but still runs at about 1gb per MINUTE....

    However....when it gets to your set top box, the chances are it's similar to what we do and that's 8mbs per second...

    so thinking about that....1gb per second compressed to 8mb per sec, pretty amazing considering if you put them side by side the difference is negligible to the untrained eye...
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  5. #20
    Zombie Flesh Eater EvilNed's Avatar
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    I actually think there's a pretty big difference between the DIVX picture and the DVD picture. And I've always thought the DIVX to be nowhere near as clear as DVD.

  6. #21
    Webmaster Neil's Avatar
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    Quote Originally Posted by EvilNed View Post
    I actually think there's a pretty big difference between the DIVX picture and the DVD picture. And I've always thought the DIVX to be nowhere near as clear as DVD.
    Depends on the compression ratio of the DivX/XVid... In the example above the file is probably 20% of the original's size...
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  7. #22
    Survey Time axlish's Avatar
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    If minimized down to appropriate pixel size on a pc monitor, xvid/divx can look pretty sharp. Put on any television over 20", and it'll look like pixels holding hands.

  8. #23
    Walking Dead DubiousComforts's Avatar
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    Quote Originally Posted by axlish View Post
    Day of the Dead looks fucking amazing, seriously.
    I agree, and it's unbelievable that there are still debates regarding whether or not HD is a significant improvement when the facts aren't debatable. I posted some DAY screencap comparisons almost two years ago to demonstrate the significant differences. And I still don't have so much as a Blu-ray drive for my PC, yet it's plainly obvious to me.

  9. #24
    Zombie Flesh Eater EvilNed's Avatar
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    Quote Originally Posted by axlish View Post
    If minimized down to appropriate pixel size on a pc monitor, xvid/divx can look pretty sharp. Put on any television over 20", and it'll look like pixels holding hands.
    Yeah. That's a pretty good point. Never had a problem when watching DivX on the computer. But on a big screen TV it shows.

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