Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
22nd October 2012, 07:03 | #14961 | Link | |
Registered User
Join Date: Aug 2012
Posts: 12
|
Quote:
So try that mate Cheers.!
__________________
MSI GT683DX, i5-2140M, NVIDIA GTX 570M |
|
22nd October 2012, 07:18 | #14962 | Link | |
Registered User
Join Date: Mar 2011
Posts: 216
|
Quote:
But now I remember why I set it to unknown in the first place instead of 23.976. It's because it can't detect properly the frame rate of some of my own videos with 59.94 fps so I wanted to avoid it using 23.976 in those cases. Thanks for the information. |
|
22nd October 2012, 11:36 | #14963 | Link | |||
Kid for Today
Join Date: Aug 2004
Posts: 3,477
|
Quote:
I'm not sure how we could roll scripts, though? through hotkeys again I presume. Oh, well it made sense to me to, for instance, sharpen onto the right colors instead of rolling colors afterwards. Quote:
Quote:
This said, I just asked for a refund on that 46" CCFL TV coz the last ten vertical percents on the right end had some slight colorimetry drift that was almost impossible to see in 50fps digital TV but utterly annoying after a while in slow 24p pans...dunno if it came from a backlight homogeneity issue, some problem with the polarizing filters or whatever else. Strangely, everything looked fine in Nokia Monitor Test, the problem was pretty much only visible in 24p pans And as 6233638 said, CCFL's make nasty bright green RBE's that are absolutely unbearable to me on anime, duh again So I'm back on the market for a new TV....and the only company that doesn't con its customers with the panel lottery is Sharp so I guess a LC-40LE630E with the killer UVČA panel & 24Hz support is in good order Last edited by leeperry; 22nd October 2012 at 12:59. |
|||
22nd October 2012, 11:52 | #14964 | Link | |
Registered Developer
Join Date: Sep 2006
Posts: 9,140
|
Quote:
If you plan to use it for movie playback, only, and not for any computer stuff, then I believe plasma (e.g. try Panasonic) gives the best image quality of the currently available TVs, at least if you can half way control ambient light. LCD is better when there's lots of ambient light. But we're getting a bit OT here. |
|
22nd October 2012, 12:04 | #14965 | Link | ||
Kid for Today
Join Date: Aug 2004
Posts: 3,477
|
Quote:
Post-sharpening the Jinc output? I've grown tired of sharpening tbh. Quote:
Well, if the Sharp fails as well I will try my luck with a Sammy in a brick & mortar shop that also provides a cooling-off period. Argyll's CR measurement will make the call I'm terribly sorry for hijacking the thread, but you'll have to admit that it's still more or less mVR related because we all want the best bang for bucks gear to enjoy mVR....and it's quite a jungle out there if you want to buy a proper flat screen. But I think I've got my mind made up now, and it might help other mVR users as well Last edited by leeperry; 22nd October 2012 at 13:00. |
||
22nd October 2012, 12:15 | #14966 | Link | |
Registered Developer
Join Date: Sep 2006
Posts: 9,140
|
Quote:
Did he have a plasma at his home? Plasmas at shops are usually put into torch mode, so they can half way compete with the super bright LCDs. Torch mode doesn't really do any favors to plasmas. You know, stores are usually brightly lit (much brighter than your living room is), and there plasmas don't look so good compared to LCDs. It's the same as with audio volume: Louder sounds "better". In the same way brighter looks "better". But in your living room, with controlled lighting, everything is very different. I've had a plasma myself and I couldn't see any hint of RBE. Plasmas do not draw images sequentially like DLPs do. 1-chip DLPs draw color by color. Plasmas have red/green/blue subpixels and all 3 are active at the same time. So there's no reason plasmas should have any RBE. What they do have is dithering noise, because plasma pixels can only be on or off, but they can't be half on. So they simulate half on by pulsating very quickly. Why don't you go to a shop and check yourself whether you can see any hint of RBE with plasmas? They really do have the best image quality, IMHO, if you can control ambient light. |
|
22nd October 2012, 13:31 | #14968 | Link |
Registered Developer
Join Date: Sep 2006
Posts: 9,140
|
Maybe I can hire you when I earned my first million with madVR. That might be hard to achieve with freeware, though... I fear the main performance cost is reading all the source pixels, and you can't really optimize that away with HLSL code. There might be a higher chance of optimization by using CUDA/OpenCL. For now my main priority is on adding all the missing features, though, not on squeezing out 10% more performance.
|
22nd October 2012, 13:39 | #14969 | Link |
Nicolas Robidoux
Join Date: Mar 2011
Location: Montreal Canada
Posts: 269
|
Put a flattr button on your download site. This may get you to your first thousand faster than you think.
(And of course it's features first.) P.S.... or somewhere obvious. (I just realized the download site is this thread, basically.) P.S.... and it makes complete sense that moving things through memory is the bottleneck, not operations. But the fact that Jinc is slower than, say, Lanczos4, suggests that there is headroom. Last edited by NicolasRobidoux; 22nd October 2012 at 13:45. |
22nd October 2012, 13:47 | #14970 | Link |
Nicolas Robidoux
Join Date: Mar 2011
Location: Montreal Canada
Posts: 269
|
Not totally sure this is useful, but here are some news, courtesy of the GIMP dev. mailing list:
Vladimir Yuzhikov has release his SmartDeblur program under the GPL at https://github.com/Y-Vladimir/SmartDeblur Yuzhikov worked on two common cases: blurring due to incorrect focus and blurring due to movement. "Each of you knows very well," he points out, they "are very difficult to repair." In fact, the examples used as samples by Yuzhikov are impossible to fix using current commercial technology. You can see these amazing results here: http://gizmodo.com/5953601/incredible-csi-enhance-technology-fixes-unfocused-photos |
22nd October 2012, 14:05 | #14971 | Link | |||
Registered Developer
Join Date: Sep 2006
Posts: 9,140
|
Quote:
Quote:
Ok, reading a square of 36 pixels is not optimal for Jinc3. It should be possible to shave off some of the corner pixels because they'll definitely lie outside of the Jinc circle. But anyway, we'll never get down to those 16 source pixels Lanczos4 is happy with. The simple reason why Jinc3 is slower than Lanczos4 is that we can't 2-pass Jinc, as we can do with Lanczos. One problem with HLSL is that a true branching "if" instruction is usually slower than doing extra work. That can make optimizations quite difficult. Quote:
|
|||
22nd October 2012, 14:13 | #14972 | Link | |
Kid for Today
Join Date: Aug 2004
Posts: 3,477
|
Quote:
Also, some plasma's output ridiculous CR, such as this 40" LG with 800:1 CR yay, even worse than a TN. But anyway, I forgot to try mirroring the picture this morning(and it was the last day I could ask for a refund), but apparently many 24p movies have the last 10 vertical percents on the right hand marked as hell, such as this sample: test.mkv I can mirror it, roll VR's or decoders, move the window in the middle of my CRT and it's still terribly marked, duh! And many/most movies, whatever from the US or EU seem to have this problem IME. I never noticed how noisy some telecine's were on my previous DLP pj, I guess LCD is indeed merciless with defects I still don't regret asking for a refund coz the RBE's and backlight buzzing noise were darn annoying anyway. This said, apparently edge LED LCD's also suffer from buzzing noise when their backlight is dimmed but at least their colorimetry should be more stable Last edited by leeperry; 22nd October 2012 at 15:09. |
|
22nd October 2012, 14:53 | #14973 | Link |
Registered Developer
Join Date: Sep 2006
Posts: 9,140
|
Every current Panasonic plasma has a *much* better native contrast than any LCD. Of course LCD uses some tricks to level the playing field like e.g. local dimming, but these tricks can introduce artifacts on their own. LCD backlights lose light, just as much as plasmas do. Current Panasonic plasmas are rated to reach half brightness after 100.000 hours of use. If you leave on your plasma 8 hours every day, it will reach half brightness after 34 years of use. That's much better than CRTs used to be. And LCD backlights won't hold any longer than this, either. There are valid and good reasons for choosing LCD over plasma, but lifetime is not one of them. Just reading reviews in the latest "audiovision" print magazine right now:
LG LCD "65 LM 620 S": - on/off contrast: 1522:1 - brightness at 10-60° viewing angle: 50% - contrast at 10-60° viewing angle: 36% (= 548:1 !!) - 24p quality: 2/3 - motion sharpness: 2/4 - cost: 2800 EUR Panasonic Plasma TX-P 65 VT 50E: - on/off contrast: 10963:1 - brightness at 10-60° viewing angle: 80% - contrast at 10-60° viewing angle: 95% (= 10415:1) - 24p quality: 3/3 - motion sharpness: 4/4 - cost: 4000 EUR Ok, price wise this is not a fair comparison, but these are the most comparable reviews in the current issue of "audiovision". You should get an LCD instead of a plasma if (and only if, IMHO): - you want to use the display as a computer monitor, too (word, programming, browsing) - you have lots of ambient light in your room and no way (or will) to control it - power consumption is extremely important to you If none of these apply, and if you truly value image quality, then you should seriously consider giving Plasma another chance. 'nough said. This is my last comment on LCD vs Plasma in this thread. |
22nd October 2012, 14:58 | #14974 | Link |
Registered User
Join Date: May 2004
Posts: 5,351
|
I've already decided on a Panasonic plasma for my b-day present in February. Absolutely wonderful consumer products. I can't wait to replace my dying SXRD.
__________________
HTPC: Windows 11, AMD 5900X, RTX 3080, Pioneer Elite VSX-LX303, LG G2 77" OLED |
22nd October 2012, 15:03 | #14975 | Link | |
Nicolas Robidoux
Join Date: Mar 2011
Location: Montreal Canada
Posts: 269
|
Quote:
How about this: When I run out of wealthy consulting clients, I'll let you know that I'm ready to take improbably repaid IOUs based on an internet handshake. Note: With Jinc deblurred with the value that I most recommend with AR (0.981...), you need a 7x7 square to make sure to hit all the locations with nonzero weights. Within this 7x7 square, at most 38 pixels actually have nonzero weights, and it is possible to only use those by exploiting symmetry and arithmetic branching. If you deblur just a little more, so that the disc has radius sqrt(10), which is not a bad thing given that Jinc3 is a little soft anyway, at most 36 pixels actually have nonzero weight. But of course, the ones that stick out of the 6x6 have minuscule weights, so there is no harm in getting rid of them, esp. since you are actually already approximating via a LUT. If you actually get rid of all those which are at a distance of 3 or more, and use symmetry and arithmetic branching, you are down to 33. OK, this is not a big reduction. However, what you can do, is write efficient code that increases the density by 4 in both directions, and either finish off by the built in bilinear interpolation, or with cheap Lagrange-type interpolation. Because increasing the density by 4 in both directions involves only three types of relative positions w.r.t. the original ones when you exploit symmetry, you can program this cheaply (you know the coefficients ahead of time, as well as the relevant pixels, for each type), and then you can use arithmetic branching to "select" the values you need to assemble. Just sayin'... |
|
22nd October 2012, 15:13 | #14976 | Link |
Kid for Today
Join Date: Aug 2004
Posts: 3,477
|
Good, coz it's about time we show you our gratitude
OK, got it! I will check plasma's but I'm not shelling out 4 grand Anyway, I'm still shocked to see that my problem came from marked telecine's.......darn it, even the new Spiderman movie had this very same problem in the exact same location and several french movies too....the bigger your LCD screen, the more merciless it gets, I can now understand why many ppl hate 24p played in 60Hz. This marked telecine issue is already extremely distracting in a 24Hz multiple.. And for some reason, mVR doesn't want to work in FSW anymore on my CRT....will try to find out why Last edited by leeperry; 22nd October 2012 at 15:15. |
22nd October 2012, 15:22 | #14977 | Link | ||||
Registered Developer
Join Date: Sep 2006
Posts: 9,140
|
Quote:
Quote:
Quote:
Quote:
|
||||
22nd October 2012, 15:55 | #14980 | Link | |
Nicolas Robidoux
Join Date: Mar 2011
Location: Montreal Canada
Posts: 269
|
Quote:
The "radius sqrt(10)" deblur is not that different anyway: 0.97651932791303247285 Last edited by NicolasRobidoux; 22nd October 2012 at 15:57. |
|
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
Thread Tools | Search this Thread |
Display Modes | |
|
|