Chroma bug in anime

[EruPii]

Hello,

I have an anime DVD source which looks like interlaced video but it's not. The problem is the same as in this archived thread: http://forum.doom9.org/showthread.php?t=163937. I tried the code Didée wrote in it but didn't help (after encoding the source the result will be crappy with only chroma frames).

I bobbed the source and saw that the chroma is swapped between frames. Can't we solve the problem somehow if we Bob it or use SeparateFields, swap the chroma of the frames and use Weave or change the frame rate back to 29.970 fps in any other way?

I attached wrong frames from the bobbed source. Also, the source can be downloaded here: https://mega.nz/#!cc53iYCb!rg_42zzJw...NnEFtQK2HpG4co

Thank you for your answer in advance.

[real.finder]

try this

orig = last
sanimebob()
chroma_rep()
getparity(orig) ? interlaced60or50 : interlaced60or50(bff=true)

[ChiDragon]

You should've cut a sample using DGIndex or another tool instead of posting the entire 800MB episode.

The problem is that they took the hard-telecined source and encoded it in progressive mode, BTW:

Format                         : MPEG-PS
File size                      : 842 MiB
Duration                       : 23mn 25s
Overall bit rate mode          : Variable
Overall bit rate               : 5 024 Kbps

Video
ID                             : 224 (0xE0)
Format                         : MPEG Video
Format version                 : Version 2
Format profile                 : Main@Main
Format settings, BVOP          : Yes
Format settings, Matrix        : Custom
Format settings, GOP           : Variable
Duration                       : 23mn 25s
Bit rate mode                  : Variable
Bit rate                       : 4 700 Kbps
Maximum bit rate               : 9 800 Kbps
Width                          : 720 pixels
Height                         : 480 pixels
Display aspect ratio           : 4:3
Frame rate                     : 29.970 fps
Standard                       : NTSC
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Scan order                     : Top Field First
Compression mode               : Lossy
Bits/(Pixel*Frame)             : 0.454
Time code of first frame       : 00:00:00:00
Time code source               : Group of pictures header
GOP, Open/Closed               : Open
GOP, Open/Closed of first fram : Closed
Stream size                    : 788 MiB (94%)

[FranceBB]

@chidragon... exactly.
Interlaced source encoded as progressive, with the chroma expanded between fields. There isn't much you can do to fix it...

[real.finder]

Originally Posted by FranceBB

@chidragon... exactly.
Interlaced source encoded as progressive, with the chroma expanded between fields. There isn't much you can do to fix it...

this code can (in most frames)

MPEG2Source("hhws_ep37.d2v")
orig = last
sanimebob()
chroma_rep(10)
getparity(orig) ? interlaced60or50 : interlaced60or50(bff=true)
FrameCache(10)

# next lines from http://forum.doom9.org/showpost.php?...50&postcount=6 with some edit

luma   = AnimeIVTC(1,chroma=false,mchroma=false,o3025cfr=true)
chroma = vinverse().Srestore(omode="PP3", cache=10)

# manual sync: figure out which frame (previous,current aka p,c) of 'chroma' clip is most similar to current frame of 'luma' clip

# 46*log(|x-y|+1) uses the full [0,255]-range and scales little differences better than |x-y|*2
diffp = mt_lutxy(luma,chroma.selectevery(1,-1),"x y - abs 1 + log 46 *")
diffc = mt_lutxy(luma,chroma,                  "x y - abs 1 + log 46 *")

# average difference between compared frames
mp = mt_lutf(diffp,diffp,"avg",expr="x")
mc = mt_lutf(diffc,diffc,"avg",expr="x")

# build conditional masks based on the caculated comparisons
maskp = mt_lutxy(mp,mc,"x y < 255 0 ?")

# finally merge the luma of the tfm with the chroma of the srestore clip accordingly to the binary mask
mt_merge(luma,chroma.selectevery(1,-1),maskp,luma=true,Y=2,U=3,V=3)

tdecimate(1)
smam(filter=daa3mod())

The result http://www.solidfiles.com/v/RqQ2WmWMLq3Gk

[EruPii]

Yup, I know my source sucks much a**, but it's my only source.
Thanks real.finder, I'll try your code as soon as I can.

[EruPii]

It's almost good, the problem is that I get these kind of frames in part of the video. Maybe chroma_rep doesn't work fully correctly. Does somebody have some kind of solution for this? Thank you for your reply in advance.

[GMJCZP]

Try this: Here

[EruPii]

I'm using that script real.finder pasted here which contains the script you linked here. My problem is with this code block:

orig = last
sanimebob()
chroma_rep(10)
getparity(orig) ? interlaced60or50 : interlaced60or50(bff=true)
FrameCache(10)

I think the function in bold characters might not work correctly, even with its default parameter values. When I commented it out, that frame was correct, but some frames directly after scene changes were wrong.

[real.finder]

Originally Posted by EruPii

I'm using that script real.finder pasted here which contains the script you linked here. My problem is with this code block:

orig = last
sanimebob()
chroma_rep(10)
getparity(orig) ? interlaced60or50 : interlaced60or50(bff=true)
FrameCache(10)

I think the function in bold characters might not work correctly, even with its default parameter values. When I commented it out, that frame was correct, but some frames directly after scene changes were wrong.

yes, it will not work in 60i, it work only in pure Telecine

that why I add other code in bottom

[EruPii]

Originally Posted by real.finder

yes, it will not work in 60i, it work only in pure Telecine

that why I add other code in bottom

Oh, thanks. But could you tell me where I can get "Hqdn3dY"? I googled it but I got no download links.

[StainlessS]

Dont know about hqdn3dY (The Y is unknown to me), but Hqdn3d can be found here:- http://avisynth.nl/index.php/Externa...oral_Denoisers

EDIT: I dont see hqdn3d in this thread anyway (apart from your prev post [with/without the Y]).

[EruPii]

Originally Posted by StainlessS

Dont know about hqdn3dY (The Y is unknown to me), but Hqdn3d can be found here:- http://avisynth.nl/index.php/Externa...oral_Denoisers

EDIT: I dont see hqdn3d in this thread anyway (apart from your prev post [with/without the Y]).

This line needs hqdnd3dy:

smam(filter="daa3mod()")

[real.finder]

Originally Posted by EruPii

This line needs hqdnd3dy:

smam(filter="daa3mod()")

http://web.archive.org/web/201602211...ins/Hqdn3dY.7z

but it's not the last one but work here

[EruPii]

Originally Posted by real.finder

http://web.archive.org/web/201602211...ins/Hqdn3dY.7z

but it's not the last one but work here

Thanks!

[real.finder]

I upload the last one I have in Attachments

[EruPii]

Thanks. I put the line

smam(filter="daa3mod()")

into the script, but when I try to pan or encode the source Avisynth returns with an error: RequestLinear: internal error (frame not cached)! after some frames. What can I do against it?

[real.finder]

Originally Posted by EruPii

Thanks. I put the line

smam(filter="daa3mod()")

into the script, but when I try to pan or encode the source Avisynth returns with an error: RequestLinear: internal error (frame not cached)! after some frames. What can I do against it?

this should not happened since I add FrameCache(10)

anyway this is normal http://forum.doom9.org/showpost.php?...1&postcount=81