Color banding and noise removal

[asarian]

Originally Posted by cretindesalpes

(Original reply replaced by this Dither presentation.)


Download

• >>>> dither-1.26.1.zip <<<<
  Main scripts and plug-ins from the Dither package, including avstp.dll.

Is it just me, or has the Dither download site disappeared?!

[Sparktank]

Originally Posted by asarian

Is it just me, or has the Dither download site disappeared?!

Yes, it seems down (for now).
http://www.downforeveryoneorjustme.c...esoras.free.fr

Site Status reports a specific error: 500 (timeout)
http://www.sitestatus.net/

I'm sure it's temporary for now.

EDIT: teh actual domain "free.fr" is up.
http://www.isitdownrightnow.com/free.fr.html

[asarian]

Originally Posted by Sparktank

Yes, it seems down (for now).
http://www.downforeveryoneorjustme.c...esoras.free.fr

Site Status reports a specific error: 500 (timeout)
http://www.sitestatus.net/

I'm sure it's temporary for now.

EDIT: teh actual domain "free.fr" is up.
http://www.isitdownrightnow.com/free.fr.html

Thx.

[asarian]

Originally Posted by cretindesalpes

(Original reply replaced by this Dither presentation.)


Download

• >>>> dither-1.26.1.zip <<<<
  Main scripts and plug-ins from the Dither package, including avstp.dll.

• >>>> dfttest 1.9.4 <<<<
  Mod16 version of dfttest.

• >>>> MVTools 2.6.0.5 <<<<
  Mod16 version of MVTools 2

Masktools 2 a48 or above is required. Previous Masktools versions will silently fail and cause the greenish screen of death. Please update your Masktools before installing the Dither script.

Hmm, if I'm to believe my hover-text, my MaskTools are still at 1.15.10 (I could have sworn they were at 2 a48). They're on the same French site, though, which is still down. There used to be an AviSynth filter repository, iirc.

[feisty2]

@asarian
I copied all those stuff from my plugins folder, hope it helps for now.
https://www.sendspace.com/file/i4atjp

[asarian]

Originally Posted by feisty2

@asarian
I copied all those stuff from my plugins folder, hope it helps for now.
https://www.sendspace.com/file/i4atjp

Thank you!! Got it!

[asarian]

Dither requires Masktools 2 alpha 48 or later, and asks me to remove mt_masktools.dll, mt_masktools-25.dll and mt_masktools-26.dll. When I do, however, QTGMC throws an error:

"There is no function called mt_makediff."

Is there way to use Masktools 2 a48, Dither, AND mt_masktools-25.dll?!

Thanks.

[feisty2]

delete mt_masktools-25.dll and update to avisynth 2.6 or avs+

[asarian]

Originally Posted by feisty2

delete mt_masktools-25.dll and update to avisynth 2.6 or avs+

Upgraded everything to 2.6. Still getting:

"There is no function named mt_makediff."

On using QTGMC. I supposed I could find an older version of mt_masktools-26 again, but Dither specifically says to remove it.

EDIT: French site is up again. Found the missing dll and installed it again!

[feisty2]

Originally Posted by asarian

Upgraded everything to 2.6. Still getting:

"There is no function named mt_makediff."

On using QTGMC. I supposed I could find an older version of mt_masktools-26 again, but Dither specifically says to remove it.

EDIT: French site is up again. Found the missing dll and installed it again!

how many masktools dll files are placed in your plugins folder, you can only put one in the folder and delete all the rest

[asarian]

Originally Posted by feisty2

how many masktools dll files are placed in your plugins folder, you can only put one in the folder and delete all the rest

I was able to download the full masktools just now, so I installed just mt_masktools-26 now, and it's working again.

I'm getting this error on your script, now, though:

Eedi3 does not have a named clip 'mclip'

I still have an eedi3 0.9.1 (for 2.5, it says); but link to the same version at least is dead too.

[feisty2]

Originally Posted by asarian

I was able to download the full masktools just now, so I installed just mt_masktools-26 now, and it's working again.

I'm getting this error on your script, now, though:

Eedi3 does not have a named clip 'mclip'

I still have an eedi3 0.9.1 (for 2.5, it says); but link to the same version at least is dead too.

you need eedi3mod like I said in your upscale thread, its way much faster

[asarian]

Originally Posted by feisty2

you need eedi3mod like I said in your upscale thread, its way much faster

Sorry, my bad, missed that.

[asarian]

Odd. Seems Dither_Convert_8_to_16 () doubles my vertical resolution (not horizontal). Is it supposed to do that?

[foxyshadis]

16-bit in avisynth is done that way, the first 8 bits of each pixel in one half and the other 8 bits in the other, called stack16.

[asarian]

Originally Posted by foxyshadis

16-bit in avisynth is done that way, the first 8 bits of each pixel in one half and the other 8 bits in the other, called stack16.

Huh. That's strange. So, if you end your script with Dither_Convert_8_to_16 (), and start to encode it (with, say, x264, like I did), you'll wind up with a doubled vertical resolution?! That can't be right.

Or is Dither_Convert_8_to_16 () just meant as some sort of intermediate (internal) state?

[feisty2]

Originally Posted by asarian

Huh. That's strange. So, if you end your script with Dither_Convert_8_to_16 (), and start to encode it (with, say, x264, like I did), you'll wind up with a doubled vertical resolution?! That can't be right.

Or is Dither_Convert_8_to_16 () just meant as some sort of intermediate (internal) state?

double height is a hack in avisynth used to convey 16bpc clips on 8bpc colorspaces, the "normal" image on the upper half is called "MSB" (first 8bits of each channel), the crappy look stuff on the lower half is called "LSB" (9-16 bits of each channel) with MSB+LSB stacked together, the clip is actually at 16bpc precision, not common 8bpc precision, "ditherpost" I wrote in your upscale thread will accept 16bpc format image and dither it to 8bpc so you can encode the video directly

[foxyshadis]

x264-tmod and avs4x264mod can both read 16-bit avisynth scripts without dithering to 8-bit first. (They'll internally dither to either 8 or 10 bit, whichever one you encode with.) Ditherpost should only be used if you have to have 8bit output on the other end.

[feisty2]

I know, I just don't wanna confuse asarian who seems hasn't used ditherpackage before

[asarian]

Originally Posted by foxyshadis

x264-tmod and avs4x264mod can both read 16-bit avisynth scripts without dithering to 8-bit first. (They'll internally dither to either 8 or 10 bit, whichever one you encode with.) Ditherpost should only be used if you have to have 8bit output on the other end.

Thank you both for your detailed explanations!