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EDIT: According to http://gorry.haun.org/pw/?20090401_tvaformat, K-ON! was SD up during broadcast.
So compare broadcast to broadcast (or even just with Bleach, that would be comparing the 480p RAWs to the 720p ones, or only the quality of the fansub encodes if you have no use for the RAWs). Only compare broadcast to disc media if it's the same series.
On that shot there is ringing around Renji's outline, but it'd likely be pretty hard to notice from a distance - the main issue is that it's blurrier.
Last edited by dissentniisama; February 16, 2010 at 10:18 PM.
I compared visual difference between upscale and Real HD, not blu-ray vs broadcast quality.Quote:
it's broadcast anamorphic. That's a screenshot from transport streem.Quote:
Wrong. It's artifact from upscaling 720x480i to 1440x1080i.Quote:
The only time that it is fair to compare broadcast to Blu-ray - or broadcast to DVD - is when talking about the same series, because it shows how much better the version on disc looks. Since Bleach isn't available on Blu-ray, to be fair it should at least be a broadcasted version of a series that's properly HD to contrast with.
Ok, then what specific kind of artifact is it? Saying it's a 480i->1080i artifact says nothing about what it is, only what was done before it appeared. If I drop my monitor down to 16-bit color (Highcolor), artifacts in the form of large patches of mismatched color appear; these aren't '24-bit->16-bit artifacts', they're 'gradation and/or banding', and they appear because there isn't enough variety of colors (65,536 in 16-bit vs. 16,777,216 in 24-bit) and vibrancy/bit depth to represent them accurately in 16-bit/Highcolor mode.Quote:
Interlacing artifacts typically only appear on parts of the image that move - in anime, frames often have large static areas, while the mouths and other smaller areas move, and would be subject to this effect. Those aren't present on most of the rest of the image (such as the blade of the sword and the stuff in the background), the parts that probably were static. This is an example of interlacing artifacts; in Renji's case, since it was probably his mouth/head and hand that were moving, and only very slightly, the problem is contained to just those spots, possibly because - if the stream had been deinterlaced when that screenshot was captured, it was a bad field match and would show regardless of whether the video had been turned back into progressive frames.
If it was simply from resizing, then you could downscale it to a smaller size, and then upscale it again and the artifacts would reappear, as any scaling operation would create them. But they don't (I just tried using Lanczos4, Bicubic, and Bilinear resize methods), which means whatever is causing them is not coming from the scaling part of the operation. The comparison image from Ina Koi! I posted earlier exhibits the same kinds of artifacts if I leave out the field matching/deinterlacing step (and it still can't get rid of it all, so even after that step some traces of the interlacing remain). In said video, the entire frame is zooming in, so almost everything is moving, and thus almost every part of the image shows the artifacting.
Well it wasn´t my goal to make a discussion about "generally HD", becaus my question was about " Is actuall Bleach episodes in HD or not ".
But we can discuss about "Bleach in HD" generally, if its good or not.
Oh, i know about that... You are not the only one encoder thereQuote:
Like i said, it's not an interlacing. Let me explain.
Their source is 480p. They upscale it to 1080i, but their decoder thinks, that their source is interlaced (don't ask me why, i don't know) and separate fields. Than it upscale 720x240 to 1440x540 and combine fields back, to 1440x1080@30i.
You can achieve this artefact by doing this in avisynth on 30p:
Resize to 1440,540
Last edited by Firebird; February 17, 2010 at 10:32 AM.
If we do go with that page's terminology, they do differentiate 'SD up' (like Naruto), vs. 'SD field up' (like Bleach). That would seem to tell me that 'SD up' is where they deal with a 480p source, scaling progressively and then putting interlacing on the final 1080p to make it 1080i, vs. whatever the heck 'SD field up' is, which I assume is taking 480i, separating the actual fields, blowing it up, and then combining them again. Is it virtually the same result in the end? Probably. But they (the tvaformat Wiki pages) feel it's important enough to make a distinction. Either way, it is still interlaced.
Okay, okay, you win I've just said that it's not a usual telecine, it can't be deinterlaced and etc.
I think we should stop offtopic here
Yup, and back to the original poster's question: Bleach is not HD
then the 720p videos found on the net are upscaled by others?
so bleach is only avaliable in 480p?