Blocking / grain around edges

[dragon_warrior]

Hi everyone. I just want to know what those 'blocking' in the shot is actually called, and how to get rid of it. Thanks :thanks:

Actual size: http://15.imagebam.com/download.php?ID=136510829&salt=65a66f&sec=e8d97e&filesize=269033&filename=9.png
2x upsized using Spline36Resize: http://35.imagebam.com/download/2YJMr9RFetuDaJskIubMWQ/13652/136510832/11.png


Sample: http://www.multiupload.com/WBRV981N3N

[-TiLT-]

Possibly it is Mosquito-Noise

http://www.pcmag.com/encyclopedia_term/0,2542,t=mosquito+noise&i=55914,00.asp

[Ghitulescu]

Increase the bitrate during encoding, to discard less data (that has to be "guesstimate" later on).

[dragon_warrior]

Possibly it is Mosquito-Noise

http://www.pcmag.com/encyclopedia_term/0,2542,t=mosquito+noise&i=55914,00.asp

Thanks but what filter I should use? The site algolith.org seems unavailable to me

Increase the bitrate during encoding, to discard less data (that has to be "guesstimate" later on).

You mean to higher the constant rate factor?

[Ghitulescu]

So one have to also "guesstimate" that you talk about x264? Probably, but there are here better experts than me to give you hints on configuring x264, despite quality is personal.

[pandy]

Reduce edge "sharpness" (anti-alias filter before encoding should help), increase bitrate use better encoder.

[dragon_warrior]

Yep, I was about to encode it using x264 encoder. After testing with various anti-aliasing filters, I could say it didn't help much :(
*edit: Another problem coming up. Anyone mind telling me what it is? Thanks
http://36.imagebam.com/download/wOGDWZMmvoelawKwZZhiug/13977/139764987/1.png
http://11.imagebam.com/download.php?ID=139765002&salt=2dc432&sec=33ff44&filesize=477527&filename=2.png
http://36.imagebam.com/download/hIchZlD9hu0ZdoPlan0uPA/13977/139765055/3.png



Sample: http://www.multiupload.com/FZ45J51FY5

[pandy]

thumbails - to small to see anything except Fergie ;)

[Ghitulescu]

Assuming these are the result of your encoding (as opposed to be the source for your encoding), increase the bitrate.

[Didée]

Seems like a typical case of poooor mpeg-2 compression.

FFT3dFilter probably can make it smooooth (blurry). MDegrain with FFT3d-prefilter (e.g. TemporalDegrain() or MCTemporalDenoise()) would be worth trying.

But as you know, without sample(s) it's hard to predict which filter will or will not "bite".

[dragon_warrior]

Seems like a typical case of poooor mpeg-2 compression.

FFT3dFilter probably can make it smooooth (blurry). MDegrain with FFT3d-prefilter (e.g. TemporalDegrain() or MCTemporalDenoise()) would be worth trying.

But as you know, without sample(s) it's hard to predict which filter will or will not "bite".

Samples added, :)

[Taurus]

The sample is from the source?
I wonder why the TMPGEncoder standard quantization matrix was used...
Yeah, at heavy action the encoder got to its limit. Blocking and smearing.
My opinion: use a good deinterlacer (TempGaussMC_beta2 or QTGMC) and leave the rest as it is....

[Didée]

You are suggesting to deinterlace sources that are telecined (and therefore should be IVTC'ed instead deinterlaced) ?

[Taurus]

You are suggesting to deinterlace sources that are telecined (and therefore should be IVTC'ed instead deinterlaced) ?
Sorry, you are right.
Never trust DGIndex and Mediainfo :devil::confused:
Just your own two eyes :p

[dragon_warrior]

The only idea I could think of is :

tfm(pp=0)
o=last
y=o.unknownfilter() #an efficient mosquito-noise remover
replaceframessimple(o,y,mappings=[...]

Consequently, only bad frames are processed while the good ones remain untouched, but I haven't found that 'unknownfilter' yet :D