real 1080p clip please

[v1rtu0s1ty]

Hi folks,

I just got a crt projector. I was testing the 1 min Fantastic-4 1080p .mov clip and I'm seeing color banding.

Here is the screenshot which I captured using ImageMagick's import tool.

http://img228.imageshack.us/img228/4797/fantasticvn9.png

I was thinking that since it's just a clip, it must have been compressed so much so people don't have to download big files from the site.

Can someone please give me a link for another real 1080p clip taken from HDDVD or Bluray? Even a 1 min clip will do. Then I will test it again.

Thanks,

V

[communist]

1080p as delivered for consumers (via DVB/ATSC, trailers, hd disks etc.) is still 8 bit 4:2:0. While it may look better on HD DVD / Blu ray compared to a trailer it will not be perfect, because there only 8 bits to represent this very very fine gradient.

[Taktaal]

That Marvel image is a lot worse than what HD-DVDs can do. Compare this real screenshot of a pretty nice gradient from HD-DVD.
http://img.waffleimages.com/881930a0b2a00069ae56ac0b1dd3be92d0de9cca/serenity-banding.jpg

[Dark Shikari]

That Marvel image is a lot worse than what HD-DVDs can do. Compare this real screenshot of a pretty nice gradient from HD-DVD.
http://img.waffleimages.com/881930a0b2a00069ae56ac0b1dd3be92d0de9cca/serenity-banding.jpgThat's terrible blocking--what the heck kind of encoder are they using :rolleyes:

[v1rtu0s1ty]

This is where I found the Fantastic 4 - ROTSS 1080p trailer. The link is actually from apple.com

http://www.drfoster.f2s.com/trailers_f.shtml

So guys, do you have 1080p 1 min clip taken from hddvd or bluray that I can test?

Thanks.

[HyperHacker]

That's terrible blocking--what the heck kind of encoder are they using :rolleyes:Well it is a JPEG image. :P

[Dark Shikari]

Well it is a JPEG image. :PYeah, and as I just noticed, an absurdly low quality one, too :rolleyes:

[v1rtu0s1ty]

I took another capture but this time using quality 100% and png format. 1080p is being played by mplayer -vo xv

The command I used while movie was in pause mode was:

DISPLAY=:0 import -window root -quality 100 png:fantasic4.png

Here is the pic.
http://img513.imageshack.us/img513/1333/fantastic4rj0.png

And here is another pic of the same frame but this time from my digital camera. Movie is being projected by Sony 1272 crt projector.

http://img145.imageshack.us/img145/622/fantastic4fromcamerashoyk0.png

I don't think something is wrong with my projector because I used the "import" tool to capture the current screen(first pic) which is actually bypassing the projector. The 2nd pic shows really what I am seeing. And below shows a pic of how nice it is in other movie source. I also took this picture using my digital camera, 10 ft away from screen.

http://img233.imageshack.us/img233/483/aeonflux1200aa8.jpg

So could it really be that the file was compressed so badly?

[v1rtu0s1ty]

Well it is a JPEG image. :P

Tell me please how it is a JPEG image?

[Dark Shikari]

Tell me please how it is a JPEG image?The link he was referring to, http://img.waffleimages.com/881930a0b2a00069ae56ac0b1dd3be92d0de9cca/serenity-banding.jpg , is indeed a JPG image.

[v1rtu0s1ty]

I think I should not worry too much. :D I'll just have to accept the reality that the 1080p trailers that apple.com provides to the public is highly compressed so that they can easily be donwloaded.