Well, VHS capturing Mostly cartoons, having some questions:)

[zerowalker]

Ehm, i may add a question, i see that some movies has comp lines, even though the other two movies i have shown was removed when doing noise filtering and the rest. But what is the recommended deinterlacing, i have tried leakkerneldeint, but it creates a weird ghosting in result. and Yadif created bad interpolation (think that is what it is at least), so any ideas?

[themaster1]

QTGMC should give the best results as far as i know

QTGMC( Preset="Medium" )
SelectEven() # keep original framerate, leave it out for smoother doubled framerate

[poisondeathray]

Are you referring to the same source or some other animation ?

You wouldn't deinterlace if the movie is telecined. Animation is very rarely interlaced

If it's progressive but there is residual combing, use another filter like vinverse

If you don't know what it is, post a sample

[jagabo]

If it's true interlaced video QTGMC() is good. If it's just out of phase PAL use TFM().

[zerowalker]

It´s now what i have shown, but the one i was thinking on was interlaced everywhere as far as i can tell, pretty much every time someone moved "half" of him/her was moving, if you know what i mean

But if it´s interlaced only in some places, i will try vinverse i guess.
But shouldn´t all VCR sources be interlaced?

EDIT: uploaded from a film i am unsure of.

[jagabo]

That video has the problem mentioned earlier in this thread -- something wrong with the chroma channels.

In addition the analog source appears to be a field blended NTSC to PAL conversion. That will require SRestore() to remove the blended fields:

AviSource("Dink.avi")
Yadif(mode=1, order=1)
SRestore()

The output will be 23.976 fps progressive. The results won't be perfect (especially with the chroma problem) but it will be much improved.

[zerowalker]

Hmm, but why is it NTSC converstion, i got a PAL VCR, and capture at 25 fps.
But will try it out, thanks

[jagabo]

Hmm, but why is it NTSC converstion, i got a PAL VCR, and capture at 25 fps.

Because the TV studio had NTSC tapes and converted to PAL for broadcast.

[zerowalker]

Okay, it´s not from a broadcast, but i guess that just means they have converted the international tapes to Pal or something.
To bad that this causes issues though, but how can i detect this conversation, cause i guess not all have them?

[poisondeathray]

you can improve the chroma problem by adding chubbyrain2() before the other filters

AVISource()
ConvertToYV12(interlaced=true)
Chubbyrain2()
.
.
#other filters


QTGMC does give better results than yadif here (it usually does), even on faster presets

To bad that this causes issues though, but how can i detect this conversation, cause i guess not all have them?

Look for field blends (mix between image before and after)

AssumeTFF()
SeparateFields()

and step through each field in vdub or avspmod, you will notice blended fields. This doesn't automatically mean it's been a NTSC=>PAL fieldblend conversion (there can be other reasons for field blends), but it's a first clue

[zerowalker]

Okay, gonna try it with chubbyrain and the rest, seems nice on preview, but should i do

AVISource("C:\Dink den lille dinosaurien\Dink.avi")
ConvertToYV12(interlaced=true)
AssumeTFF()
Chubbyrain2()
QTGMC( Preset="Medium" )
SRestore()

And then do noise filtering, from the made AVI?

[themaster1]

There also is this solution for telecine:

AssumeTFF()
TFM() # filter TIVTC
TDecimate()

Not sure if it's suited for pal

[jagabo]

There also is this solution for telecine:

AssumeTFF()
TFM() # filter TIVTC
TDecimate()

Not sure if it's suited for pal

It's fine for NTSC. For PAL where progressive sources have fields paired out-of-phase so the frames are interlaced, you just use TFM().

[zerowalker]

i can´t seem to remove the blending in this movie, i tried to play around, set 12.5 fps or use TFM() or Vinverse, but the transparent frames was still there "untouched". Anyone got any ideas?

[jagabo]

This seemed to work fairly well:

Yadif(mode=1, order=1)
SRestore(frate=12)

The clip (uncompressed RGB?) was too short to say for sure.

[zerowalker]

Okay, uploaded another clip, i tried FPS at 12 with QTGMC as i can´t get Yadif to work, but still get blended pictures, this one was a bit "bugged" when i captured it though, maybe should recapture.

[jagabo]

That's some sad video. Many frames aren't represented by any clear fields. I don't think you'll never get clean results out of it. The frame rate of the original progressive frames appears to be 25 fps.

[zerowalker]

Well, the good thing is that this is one for the least of my care, but you think it´s a capture issue?
cause at start when a rocket was launched, everything became blue and wave like (like when i was gonna play Snes and certain effects happened).
If it´s not a capture issue and the video itself, then nothing can really be done, except denoise and sharpening maybe

[jagabo]

I don't think it could be a capture problem. There's some possibility some of the deblending filters might be able to help. But I don't now much about it. See UnBlend(), DeBlend(), c_Deblend(), RemoveBlend().

[zerowalker]

Hmm, okay will try it out, and maybe recapture just to be safe, but it´s one of the less important tapes i want to keep as i said before, but i don´t feel like giving up just yet

Thanks

[zerowalker]

http://imageshack.us/photo/my-images/51/artifacts.png/
how do you remove these stripe things?
is there any filter for it, and what is it called?

Thanks

[jagabo]

That's called "herringbone" noise. It's often caused by grounding problems between the VHS deck, capture device, and computer. It's best to eliminate those grounding problems. Make sure all are plugged into the same outlet. If that doesn't help I'm not sure how you're going to get rid of it. Maybe Neat Video if you can find a large area with the noise to sample.

By the way, you should upload images at the actual captured frame size, not enlargements.

[zerowalker]

Yeah sorry for the enlargement used print screen.
Don´t know what you mean by grounding problems, i have a Vcr and i got a composite cable going from the back of it into my capture card.

[jagabo]

Different outlets in the house may have different ground levels. This can cause ground loops -- a source of noise. Also make sure nothing is plugged into a cable TV outlet. That's another source of grounding problems. Only connect the devices and cables you need for capturing.

[zerowalker]

There is no TV outlet in the room, and for the power outlet it´s in an adapter with many of them (don´t know what its called).
And there are many cables where the composite cables are going, as it´s the back of my pc.
What do you recommend i do to see if it´s the reason?

EDIT: would there be a matter with good cables, like Monster for Composite (maybe audio as well)?

[zerowalker]

still got the problems with orange lines, it´s gone or atleast alot better when converting to YV12.
But if you check this clip, i got problem with the Delay, it´s like the FPS is about 11 or something, so i would like to ask for help

[jagabo]

There's something very wrong with the chroma channels in that video. They are interlaced but instead of line by line it's by pairs of lines. I'm not sure how that can happen or how it can be fixed. In addition to that the luma has blended fields. The blended fields are probably on the tape and in the original broadcast. The weird chroma is probably a capture problem. I suspect the driver is combining the wrong chroma channels with the luma channel.

The video was captured as 25 fps but I think the original animation was 12 fps -- converted with a field blend.

ConvertToYV12() cleans up the chroma channels because it blurs them together. But that means you get a blur of both chroma channels with each field. So you get blotches of color when there's motion.

Is that exactly the way it was captured? You haven't converted anything, right?

I'll have more time to look at this tomorrow...

[zerowalker]

Thank you very much as always.

Yes this is the original opened in virtualdub, it looked like that when i captured as well.
It has happened to all of my captures which i find very annoying now that i think about it.
I captured this video as follows.
Set Custom Format: 720x576
Compression- ULY2 or UT Video Codec YUV2 (first time i tried it with capture after i read you recommended it)

For Capture Card it´s an old one i bought of from someone, he said he took very good care of his electronics as he had worked with such things, so it´s probably not damaged. However, the drivers i use or a bit Extraordinary as if i remember correctly there wasn´t any drivers so i had to use other ones which made the card work, or something like that. I thought that if it shows the picture okay, i guess it works, but maybe that is the source of the problem. Or of course the card itself, or maybe even something before it reaches the card.

I will leave the theory to you, as i am not good at this.
But as always i am very grateful to whoever helps me out.

EDIT: i ordered http://www.pixmania.se/se/se/4311511/art/avermedia/tv-kort-hybrid-capture-hd.html
as it should be alot better than mine, and i can capture digital media.

There is nothing different or bad with converting analog to digital before it reaches the card as you do with this right?
it can still capture everything etc;O?

[jagabo]

I still don't know exactly what the problem is but here's a workaround for the green and red stripes:

AviSource("delayHUFF.avi")
AssumeTFF()

# blur the chroma channels vertically to remove the stripes
# but keep the original luma channel
MergeChroma(last,BicubicResize(width,height/4).BicubicResize(width,height))

# restore the original 23.976 fps, eliminate most of the field blending
Yadif(order=1, mode=1)
SRestore(frate=23.976)

ChromaShift(C=-4, L=-2) #shift the colors left by 4 pixels, up by 2 pixels
ConvertToYV12()
MergeChroma(awarpsharp2(depth=48)) #sharpen the colors

ColorYUV(off_u=-4) #adjust the white balance -- make the girl's hat white
ColorYUV(cont_u=50, cont_v=50) # increase the saturation

Now the video is ready for some noise reduction. But there is some chroma blending left.




I'm still looking into a real fix for the color stripes...

The computer I'm working on doesn't have a ULY2 decoder so I used another to convert to HuffYUV.

[zerowalker]

I edited upp but will post it here

EDIT: i ordered http://www.pixmania.se/se/se/4311511...apture-hd.html
as it should be alot better than mine, and i can capture digital media.

There is nothing different or bad with converting analog to digital before it reaches the card as you do with this right?
it can still capture everything, the resolution and such etc;O?


Nice, but if i use the new card, you think the problem will be solved?
As i don´t really like having the problem, But will of course use the suggestions if it can´t be solved!