Blocks in black background!!
Hi,
I use the latest script, and works nearly fine, but u can always see blocks at a black background, what can that be?? I mostly have a CQ from about 80-90, that should be enough. Cu Plautzer |
thanks for redo my answer plautzer :wink:
i see the same like you and more: the blocky dark seems "dark green" too. :!: |
Are you guys using any additional filter in your MAScript :?:
Have you had this problem sence you install aviynth or after adding certain software :?: :roll: I sure like to know whats going on there :!: |
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i post it many times... using the last script without changes, no problems with avisynth and i have ghost images, i can recall the system when some is strange. all that i try give the same result. i format and reinstall everything , i have one ghost image only with the programs needed to make kvcds....special for encodes. in all systems and images got the same problem. really bore me cos don't know what happen and my source is clean dvd. :wink: |
maybe is a problem when you are ripping the vobs off the dvd :?:
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8O now the worse: i have the vobs ripped in hd,no more the dvd to rip again. :bawl: :idea: i will try it and call my nepew again.i'm doing this encode for him. he have the dvd! |
Have you played with Tom Barry's DCTFilter?
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please more hints Fred,i'm using the last best script for avisynth252, than send me your recomendations! thanks :wink: |
@ Jorel
1) During preparing d2v with DVD2AVI did u used TVscale ore PCscale ? 2) Maybe u just check option -Output YUV data as basic YCbCr not CCIR601 - in TMPGenc under Quantize matrix TAB to convert all near black to real black ??? Worth to try 8) 8) bman |
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THAT is the thing to change if you find your black to "green". (reminder : limiter changes all luma value below 0 to 16, that means that a true black (L=0) is changed to a dark grey (L=16)) |
[quote="Dialhot"]
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@ DialHot With whole respect to u and your knowledge(that i've no doubts u have more than I do) but It's little bit rude to use such kind expressions . Even If u are very sure about your rightness just keep your polaite manners please :!: :!: :!: We are here just to help one each other not to critisize and abuse Best regards bman |
and i have more age than you all and feel this like
2 brothers with little problems. like a "granpa" i ask: ending with simple excuses? no more problems my dears? growing the friendship? :) |
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Excused and forgotten :)
Let's move on to get better encodes bman |
:D
great :!: |
Well looks like this one lasted less then Tyson's at his best. :mrgreen:
back to you Jorel. |
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hey bman,i remember now,it was a 4 months ago... i copy the folder "video_ts" from dvd to hd and rip this using Vstrip internal of dvd2svcd prog. the worse,i trash the original(copy)vobs from video_ts folder i only have the ripped vobs from Vstrip. in dvd2avi project was using PCscale. :!: |
Hi Jorel
Maybe u'll try d2v file with TVscale setup ?!! bman |
ok,
i try using one vob to test! :wink: |
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bman |
nothing change bman,
just the same. :!: |
Well,
did anybody solve this problem, I had no luck with anything I did!! :oops: OR what could u actually change to get rid of it?? What filter is responsible for that problem? THx Plautzer |
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I use 528x480 for NTSC and 528x576 for Pal!!
Plautzer |
@ Jorel:
Do u see the blockz in preview when u load the .vobs in DVD2AVI?? I would like to show a pic but it doesnt work with 'print screen' and paste in paint!! But u can see in the preview that there blocks, they're not that intense but still, u can see them!! What could that be?? I mean what could u do wrong when u rip a dvd on ur hard drive?!?! Plautzer |
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the image is clear,,i can call the quality like "fantastic". i think in all possibilities and i was copy the full dvd to hd and rip with VStrip and trash the "video_ts" folder of my hd after rip. if i load the vobs or ifo in power dvd,wmplayerClassic, vdubmod or dvd2avi(176,1773 or 1774) the image is wonderfull...... it all means: i'm lost,don't know what is wrong. if i load a simple .avs scrip without any filter in vdubmod,ToK,Tmpgenc, the image show: strange dark green in dark scenes,some blocks sometimes and little "moving ants",dont matter the "resize"(resolution) choosed in the script :!: and more, this source is ntsc interlaced 29,97and if i use GOP30 (auto GOP in ToK) in tmpgenc and encode, the image seems "breathing" like i posted before. seems better if i change the GOP to 24 but this is not correct,i think! strange but true my friend. :wink: |
so since thursday anyone managed to figure something out???? I am gettin this problem too in dark scenes and I am noticing some colour bleeding mainly blue.
here is the script I was using: Code:
##DLL Section ## |
So should we definatly be using Limiter() then? to help with the blocks.
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well I have limiter on and I'm gettin blocks, I haven't a clue when it comes to the scripts, I just see if there is a updated version and use it :lol: I have tried to get into the scriptin language but I just find it recks my head. I do appreciate all the help off here just can't rack my head round the script.
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I think the only way to solve this problem is to go back to the previous version of avisynth. I'll bet the problem clears up.
-Yoda |
so is it gonna be a case of someone lookin over the script and seein whats what?
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Those Blocks appear, because of the Television. My Panasonic TV plays KVCD well, while on my brothers Grundig TV KVCD looks crappy with a lot of blocks on black backgrounds. For Instance the beginning credits on black background are looking fine on my TV, but on my Brothers TV a lot of Grey/Darkgreen Blocks appear. Those blocks are not still, they are kind of moving. It looks like kind of "pixelporridge". Very Ugly. But I also noticed that even some original DVD's look blocky on my Bro's TV, when it comes to scenes with still background.
On the Computer everything looks OK. I really assume that it has nothing to do with script, the Vob's or whatsoever. It's a TV related thing. |
Hi,
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Has it maybe somethin gto do with the hardware?? I tested it on my laptop and on PC and I got the blockz with both. I also tried a PAL and NTSC dvd and there werent differences neither!! When I rip a dvd with Davideo.... picture looks pretty good, no blockz or everything.... I dont really know what to do!! Cu Plautzer |
can't be my TV cause it looked the same when played on my PC, plus I noticed what could only be described as the blue bleeding into the picture in dark scenes when I done MI:2 when it was semi dark parts.
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In fact I wasn't talking at all of the blocks in dark you were talking about. The fact is I never had such blocks, and I never use Limiter. Can't say if that is really the source of the problem.
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Thanks |
from the docs under avisynth:
limiter This filter is present in v2.5. The standard known as CCIR-601 defines the range of pixel values considered legal for presenting on a TV. These ranges are 16-236 for the luma component and 16-240 for the chroma component. Pixels outside this range are known to cause problems with some TV sets, and thus it is best to remove them before encoding if that is your intended display device. By default this filter clips (or "clamps") pixels under 16 to 16 and over 236 (or 240) to 236 (or 240). :!: |
Old TV sets had problems with extrem values as picture too dark or too bright. That is why the standard CCIR601 was decided. As on these old screens, the material wasn't black indeed but very dark green, I think this problem wasn't a real one.
Now, as there are TV set with perfectly dark screen, that is an other question. Same for limitation in high value : the problem appears only on weak electronics (the image seems to "pump" when you have a very bright area to display). In 2003, all TV set can handle very high luma. I think Jorel can say something more on this point : that is his everyday labor :-) |
See http://www.avisynth.org/index.php?page=Limiter
It rounds [0,16] to 16 and [236,255] to 236. edit: too late :) |
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