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19th December 2016, 15:18 | #41602 | Link |
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this is a 720p part of the scaled UHD image in 720p from the "hat": https://abload.de/img/720puhdcutkuocr.png
these image from here are amplified: http://forum.doom9.org/showpost.php?...ostcount=41614 NGU very high/chroma NGU med: https://abload.de/img/bicubic60art1r0o.png NGU very high/chroma bicubic 60 AR: https://abload.de/img/ngumedokrt7.png i'm pretty sure lanczos will not make a difference comparing these two. BTW you can compare lanczos 3 AR and bicubic 60 AR upscaling to get an idea of the difference in chroma which looks like nothing at all to me. |
19th December 2016, 15:26 | #41603 | Link | |||
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It is not a big difference, but to quote madshi : "highest quality has priority over anything else". Quote:
Can you show an image where bicubic 60 AR is better for upscaling than lanczos 3 AR ? |
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19th December 2016, 15:49 | #41604 | Link |
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you are showing a difference by amplifying an image to a ridiculous point.
if you need to amplify this than there is no difference it is that simple. there is no real difference between NGU and bicubic except the arm where NGU is doing bad looks cut out and adds ringing. but NGU chroma doubling does change the image. if you really want a lanczos 3 AR vs bicubic 60 AR i can do that... here you go Cr rendered as Y: https://abload.de/img/1dup4r.png https://abload.de/img/24arvq.png |
19th December 2016, 16:05 | #41605 | Link | |||
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https://abload.de/img/24arvq.png is Lanczos3 AR, right ? because it looks sharper. I don't know how you did that, but it is cool and you can see the differences better I don't think you can show an image where bicubic 60 AR is better for upscaling than lanczos 3 AR. Last edited by Neo-XP; 19th December 2016 at 16:23. |
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19th December 2016, 16:24 | #41606 | Link | |||
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you can show a difference always so we should get scaler in 100 steps with enough zooming it will show a difference. see doesn't make sense. Quote:
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the difference is close to nothing it is a waste of time. on a normal image the Y channel will totally dominate the image. high quality chroma scaling is questionable small most of the time but the difference are day night if Cr is rendered as Y. and about "highest quality has priority over anything else". chroma doubling was remove from madVR before and the main reason/image example it is in again was a 320p pixel art RGB image that showed a difference (it wasn't really better BTW.) not to talk about even higher bit deep that could be used and other stuff that may show a difference when we zoom in enough. |
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19th December 2016, 17:01 | #41607 | Link |
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Yes, I know, but why propose an inferior algorithm to upscale when you could have Lanczos3 AR with the same performance ?
Of course you won't be able to differentiate them in motion at 100% zoom, but that is not the point. The point, for me at least, is to have the highest quality you can get for your hardware Bicubic shouldn't be used to upscale anything at all. It is good for downscaling though (with AR). Last edited by Neo-XP; 19th December 2016 at 18:02. |
19th December 2016, 17:10 | #41608 | Link | |
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thank you |
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19th December 2016, 18:52 | #41609 | Link |
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I've come across a user trying to create profiles for 3D and non-3D content. This is his rule:
else if (3D) and ((srcWidth > 1280) and (srcWidth <= 1920)) "1080p 3D" else if (3D) and ((srcWidth <= 1280) and (srcHeight > 720) and (srcHeight <= 1080)) "1080p 3D" else if (not 3D) and ((srcWidth > 1280) and (srcWidth <= 1920)) "1080p" else if (not 3D) and ((srcWidth <= 1280) and (srcHeight > 720) and (srcHeight <= 1080)) "1080p" Can you tell me if anything is wrong with this rule?
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
19th December 2016, 19:07 | #41610 | Link | |
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To use Avisynth plugins you need to install one of numerous Avisynth builds, find and download Avisynth plugin on this forum or avisynth.nl, then manually write Avisynth script on its scripting language and open script in video player. You should expect compatibility, stability and speed issues between particular Avisynth build and particular build of particular Avisynth plugin.
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I'm infected with poor sources. Last edited by cork_OS; 19th December 2016 at 19:09. |
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19th December 2016, 20:08 | #41611 | Link |
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Sorry, previous post turned up too sarcastic and uninformative.
madVR include no avisynth / vapoursynth support, so opening video in player through avisynth script is the only way of real-time madVR preprocessing. In addition to overall avisynth usage complexities, a lot of avisynth plugins are still too slow for real-time usage. So madVR existence is the salvation for end users and I pray for it's further development. Lack of bitrate (and compression artifacts) is the usual thing for nowadays dowloadable / streaming H.264 content, as well as compression artifacts on older MPEG-2 DVDs (and countless MPEG-4 ASP encodes), and I do not know how to reduce compression artifacts while preserving details in real time.
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I'm infected with poor sources. |
19th December 2016, 21:33 | #41612 | Link | |
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Seriously now, I find myself using Jinc more than any other algo, except maybe for NNEDI since those two are best for my usage scenario, but NNEDI 200% forced makes my laptop go too loud so I can't really enjoy the whole anime or movie or AMV I'm watching... Guess Jinc will do for now.
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19th December 2016, 21:43 | #41613 | Link |
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Quote:
Super XBR is also a bit sharp for edges, depending on the material.
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20th December 2016, 01:32 | #41614 | Link |
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When recommending settings, how much performance does Error Diffusion take versus Ordered dithering at 4K? At 1080p, the performance is negligible with a 750 Ti. I wonder if it saves enough performance to bother using Ordered.
How many ms does Ordered save you? For me, it's a couple ms at most.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players Last edited by Warner306; 20th December 2016 at 01:35. |
20th December 2016, 02:21 | #41615 | Link | |
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I don't know why I had more than 90% load before, I can't reproduce the issue at the moment You really have to test on specific patterns to see any difference between the two. Last edited by Neo-XP; 20th December 2016 at 02:29. |
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20th December 2016, 04:23 | #41616 | Link |
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You should be familiar with the ins/outs of AviSynth (MT and Plus32/64) before embarking on what may initially seem a simple task. Otherwise it may well turn into a rat-hole where problem solving rather than media consumption provides the entertainment/pleasure.
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20th December 2016, 04:36 | #41617 | Link |
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I have been using MadVR to switch display modes. However. When switching to 2160p when the TV out is initially set to 1080 the video starts in a quarter size window in the top left corner of my LG OLED (LG TV reads 2160p on info). If the TV out is initially set to 2160p it plays UHD video fine but when I play a 1080p video it switches to 1080 on the TV and plays a portion of the video only on one half of the TV (again showing 1080 on TV info). The other side is black. If I disable DX11 in MadVR (as long as FSE is enabled) it works as expected, but DX9 is buggy as heck on AMD drivers. If I just set 2160p as the resolution to switch to MadVR will scale to 2160p which I presume puts more strain on the GPU? Which is the correct method? Should I forget about sending 1080p to my UHD TV and let MadVR scale it to 2160p?
I find the different resolutions confusing when it comes to using MadVR. It was pretty straightforward before |
20th December 2016, 06:18 | #41618 | Link |
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Is it normal to have such high rendering times for 10-bit videos? I've noticed it in both HEVC and H264. I suspect it might be because of a lack of H/W Decoding but I'd like to confirm regardless.
GTX 970, LAV with DXVA2 native is what I use by the way. Last edited by EncodedMango; 20th December 2016 at 06:21. |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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