NNEDI - intra-field deinterlacing filter

[Adub]

Congrats on the Netflix problem!

[JP06]

I can't seem to make NNEDI work with yadifmod. This is the code I'm using:

AviSource("Deint.avi")
loadplugin("D:\Video\AviSynth 2.5\plugins\nnedi.dll")
loadplugin("D:\Video\AviSynth 2.5\plugins\yadifmod.dll")
ConvertToYUY2()
AssumeBFF()
interp = nnedi()
yadifmod(edeint=interp)

It runs, but the output is the plain yadif output. When run alone, NNEDI works fine.

[Terka]

hi Tritical,
regarding deinterlace using nnedi:
is it possible to add to nnedi if statement like this:
if object with horizontal shape appers, new line is computed either from above,
either from below line(s).
b,w-known (different colors), ?-to be computed

bbb
???
bbb
???
www
???
www
---------------
bbb
???
bbb
bbb
www
???
www

OR

bbb
???
bbb
www
www
???
www

is it possible to decide the color from neibour frames?
this will avoid flickering after deinterlace. (instead of lines with width 1 pixel)

[puddy]

I'm working with NTSC 29.97 camcorder interlaced video captured at 720x480 compressed YUY2 huffy. I'm seeing my encoding speed drop to less than a quarter of what it was before using NNEDI.

Here's my original yadif only AVS (CCE SP2 Speed = .20):

Setmemorymax(768)
Load_Stdcall_plugin("C:\Program Files\AviSynth 2.5\plugins\yadif.dll") 

AviSource("G:\VideoCapture\cam1.avi")
Trim(14,19527)+Trim(19534,20380)+Trim(20523,27914)+Trim(28672,110689)

assumetff()
Crop(0,8,-16,-8,True)

yadif(mode=1, order=1)
HDRAGC(coef_gain=.5,max_gain=1,min_gain=0,black_clip=.1,reducer=2,max_sat=1.3)
FFT3DGPU(sigma=4, bt=3, bw=32, bh=32, ow=16, oh=16, sharpen=1.5, interlaced=false)

assumetff()
separatefields().selectevery(4,0,3).weave()

AddBorders(8, 8, 8, 8, $000000)

FadeOut2(55)
FadeIn2(55)

Here's my yadifmod+nnedi AVS (CCE SP2 Speed = .04):

Setmemorymax(768)

AviSource("G:\VideoCapture\cam1.avi")
Trim(14,19527)+Trim(19534,20380)+Trim(20523,27914)+Trim(28672,110689)

assumetff()
Crop(0,8,-16,-8,True)

yadifmod(mode=1, order=1, edeint=nnedi(field=-2))
HDRAGC(coef_gain=.5,max_gain=1,min_gain=0,black_clip=.1,reducer=2,max_sat=1.3)
FFT3DGPU(sigma=4, bt=3, bw=32, bh=32, ow=16, oh=16, sharpen=1.5, interlaced=false)

assumetff()
separatefields().selectevery(4,0,3).weave()

AddBorders(8, 8, 8, 8, $000000)

FadeOut2(55)
FadeIn2(55)

Notice my sig, I have an HT processor. Using default nnedit settings it starts two threads on my machine. If I force it to use just one thread and make sure it is using SSE I don't see any change in speed:

yadifmod(mode=1, order=1, edeint=nnedi(field=-2, threads=1, opt=2))

I've also tried 2 Threads + SSE = same

Am I missing something because other have eluded that using nnedi was at least as fast if not faster.

I've been at this for several years now but still feel like a newbie sometimes...

Thanks so much!

[Leak]

Originally Posted by puddy

Am I missing something because other have eluded that using nnedi was at least as fast if not faster.

Using NNEDI was as fast as what?

Tar? Molasses? Glacial migration?

Sorry, NNEDI is just about the definition of slow. It's got the quality to justify it, though...

(The "NN" in NNEDI stands for neural networks, if you didn't know - running those chews a lot of CPU...)

np: Kettel - Peeksje 1994 (My Dogan)

[R3Z]

Originally Posted by Leak

Using NNEDI was as fast as what?

Tar? Molasses? Glacial migration?

I had a chuckle.

[Adub]

It's not THAT slow. I can get almost realtime usage out of it. I have seen a lot worse.

[Leak]

Originally Posted by Merlin7777

It's not THAT slow. I can get almost realtime usage out of it. I have seen a lot worse.

Whoa... so what supercomputer did you use to accomplish that feat, if I may ask?

np: DJ Koze - Brutalga Square (Speicher CD2)

[thetoof]

I can "accomplish that feat" too (almost realtime) and I've got a q6600, 2x 2GB DDR2 RAM and 8800 GTS.

[jeffy]

Originally Posted by thetoof

I can "accomplish that feat" too (almost realtime) and I've got a q6600, 2x 2GB DDR2 RAM and 8800 GTS.

Could you please tell us what's in the script that runs almost realtime? The source is in MPEG-2 or MPEG-4 format, SD or HD?
Does it really mean (cough) almost 30 fps? Does it use MT?
What exact NNEDI setting is used?
Thank you.

[Terka]

Tritical, is it possible to modify nnedi be temporal too?

[Adub]

Yep, I am running an E6600 with 3gb ram. It runs fine. Note: this is with SD sources.

[thetoof]

MPEG-2 720x480 source, nnedi alone, default parameters, 90-100% cpu usage (multithreading is used even without MT() or SetMTMode()), 165MB RAM, 175 MB virtual memory, 20-30 fps

[Undead Sega]

how is running NNEDI on a GPU going? i would really want to see that happen very soon

especially MCBob, i need to use that filter for a 7mins 100fps video!

[g_aleph_r]

Originally Posted by Undead Sega

how is running NNEDI on a GPU going? i would really want to see that happen very soon

Me too!!

[pitch.fr]

Originally Posted by Didée

(The next topic could be: "How to implement the zoom filter used in the CSI TV-series?")

that's something I would also like to know

this script looks really good, but I don't succeed to get the same results on very ugly videos than with this PS script(to be used in MPC) :

// +deinterlace (blend).txt=ps_3_0
sampler s0 : register(s0);
float4 p0 : register(c0);
float4 p1 : register(c1);

#define width (p0[0])
#define height (p0[1])
#define counter (p0[2])
#define clock (p0[3])
#define one_over_width (p1[0])
#define one_over_height (p1[1])

#define PI acos(-1)

float4 main(float2 tex : TEXCOORD0) : COLOR
{

	float2 h = float2(0, one_over_height);
	float4 c1 = tex2D(s0, tex-h);
	float4 c2 = tex2D(s0, tex+h);
	float4 c0 = (c1+c2)/2;
	
	return c0;
}

on videos full of combing artefacts, this script does miracles

any idea how to get the same results with AVS ?

thanks,

[Leak]

Originally Posted by pitch.fr

any idea how to get the same results with AVS ?

Bob().ConvertFPS(last.framerate)

You might probably want to replace Bob with something more advanced like LeakKernelBob (okay, I'm biased... ) or something.

But why not simply apply bobbing on playback? That gives you the full temporal resolution instead of the above blended mess at half the temporal resolution...

(ffdshow will happily apply a KernelBob on playback - for best results set your monitor's refresh rate to an integer multiple of the produced framerate, i.e. 48, 50 or 60 Hz according to your source...)

np: Underworld & Gabriel Yared - Happy Toast (Breaking & Entering OST)

[pitch.fr]

thanks for the tip, but I've already tried all the ffdshow deinterlacers(including yours), and none of them appealed to me.

I'm talking about "artefacts" due to poorly or non-interlaced heavily interlaced videos.

these combing effects have no pattern, they are just erratic.

the MPC PS script I posted above literally does miracles on such poorly encoded AVI's or MPEG files

just looking for something just as powerful at this point.......and I can't find something that does miracles like this in ffdshow or AVS

[Didée]

I'm not used to read such pixelshader code, but it seems it's simply replacing each pixel with the average of its top & bottom neighbor?

Blur(0,1)

Ah, the miracle.

[Leak]

Originally Posted by pitch.fr

I'm talking about "artefacts" due to poorly or non-interlaced heavily interlaced videos.

"non-interlaced heavily interlaced videos"

If you mean interlaced videos that have been resized without proper handling so the interlaced frames got smeared together - do yourself a favour and throw them into the recycle bin; they're well beyond repair...

If that's not what you meant - could you perhaps post a sample?

np: The Cinematic Orchestra - Child Song (Live At The Royal Albert Hall)