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- Video Encoding and Conversion (http://www.digitalfaq.com/archives/encode/)

- - New optimal script (V4) is there (http://www.digitalfaq.com/archives/encode/6469-optimal-script-v4.html)

bigggt

11-03-2003 08:49 PM

Thanx muhali3,just got this version and it seems to be working

Convolution3D-YV12 released on 03-29-2003

Is this right

On a side note when you guys talk about noise,mosquito noise is there somewhere that has picture of all these things so i can try and learn whatyou guys are talking about.

muhali3

11-03-2003 10:40 PM

yes that is the right convolution 3d plugin.

mosquito noise is noise that appears in areas with high contrast. Such as white lettering on a black background, like in the end credits. In the credits, if there was mosquito noise, it would be surrounding the outside of the letters and other places with high contrast. It is very noticeable at low resolutions.

I can't find a thread with a picture. I have just learned it from reading the threads.

Hope i answered your question. :o

incredible

11-04-2003 01:17 AM

Quote:

Originally Posted by muhali3

could someone suggest what i should do to reduce mosquito noise at low resolutions (<352x480)

Did you check the AVI? Is there already mosquito noise? Is it already very sharp? Did you apply another SharpenFilter? Because sharpen edges are most responsable for mosquito noise. So do a test and change the word "Lanczos" into "Bicubic" in the GripfitResizer. And maybe the mosquito noise is gone but your movie will come out sharp enough.

Encoding Matrix no matter if part 1 or 2 will give you a real high CQ! and therefore almost no mosquito noise, cause the movie is 50% dark and therefore it loves to be compressed.

The best you can do is posting a pic of before and after in here so we can see what would be the best. ;-)

muhali3

11-04-2003 04:55 PM

no there is not mosquito noise. its not already sharp. and i didn't put any sharpen filters. what i see in the source is dct-blocks and rainbows (real bad divx).

Code:

AviSource("c:/matrix.avi",false) 

GripCrop(352, 240, overscan=1, source_anamorphic=true, dest_anamorphic=true) 

GripSize(resizer="LanczosResize") 

BlindPP(cpu=4) 

Convolution3D(Preset="MovieLQ")

TemporalCleaner(ythresh=5, cthresh=10)

MergeChroma(blur(1.58))

DCTFilter(1,1,1,1,1,1,0.5,0) 

Blockbuster(method="noise",detail_min=1,detail_max=3,variance=0.1,seed=1) 

GripBorders()

i'll try to get some pics
[/code]

incredible

11-04-2003 06:47 PM

Quote:

Originally Posted by muhali3

Code:

AviSource("c:/matrix.avi",false) 

GripCrop(352, 240, overscan=1, source_anamorphic=true, dest_anamorphic=true) 

GripSize(resizer="LanczosResize") 

BlindPP(cpu=4) 

Convolution3D(Preset="MovieLQ")

TemporalCleaner(ythresh=5, cthresh=10)

MergeChroma(blur(1.58))

DCTFilter(1,1,1,1,1,1,0.5,0) 

Blockbuster(method="noise",detail_min=1,detail_max=3,variance=0.1,seed=1) 

GripBorders()

Sorry my friend but it seems you go "off topic" by exactly using this script ;-)
Convo3d set to "presets" and TempCleaner do not belong to the script to which this thread is refering to.
So how about using the script as mentioned in the first post of this thread?
Give it a try ... and then we can go further with optimizations refering to your special source condition. ;-)
BTW: Always put the BlindPP(..) line next to the Avisource(...) line cause that's what it does .. preprocessing. And my recommendation is not to use the "movieLQ" preset in Convo3d cause it will seem like if you pour concrete on still existing details 8O

muhali3

11-04-2003 07:07 PM

k, i just tried to change a little things in the script. thanks for the advice. i'll change it back. and see the results. :o

Dialhot

11-04-2003 08:13 PM

Good advice from Incredible but just one thing : source_ana=true AND dest_ana=true leads to do.. nothing !

In fact as you are using avi and ALL divx are non anamorphic, that is source_ana=false that you have to use and add dest_ana=true only if your TV set is widescreen.

remember 16:9 and anamorphic ARE NOT THE SAME THING !

incredible

11-05-2003 04:38 AM

Quote:

Originally Posted by DialHot

but just one thing : source_ana=true AND dest_ana=true leads to do.. nothing !

Still eagles eyes that late at night! 8O :)

muhali3

11-05-2003 05:05 AM

Code:

source_ana=true AND dest_ana=true leads to do.. nothing !

yeah, i found that out after my test encode,

@incredible: you were very right. when i encoded the matrix at 352x480, CQ 76.43, the output file was only 610MB.

incredible

11-05-2003 06:27 AM

:) The same will result when encoding "Bladerunner", "Matrix Reloaded!!", "Seven" .... and much more .... they all contain more than 50% Dark within the movie = fantastic CQ values!

BTW: When getting more CQ than 75 after prediction you also can add a second language Audio track .. as I did when encoding Matrix Reloaded @ mpeg1/480x576/300min/2000max the CQ was still 62 incl. 2 Audio Tracks each @ 112kbit and the picture was very good on TV. 8O. The same was possible with "Seven".

Dialhot

11-05-2003 07:04 AM

Quote:

Originally Posted by incredible

Always put the BlindPP(..) line next to the Avisource(...) line cause that's what it does .. preprocessing.

postprocessing, not preprocessing.
But you have to put if before the resizing because its purpose is to break the border of DCT blocks. These borders are very distorted by the resizing then blindPP can't process on them.

incredible

11-05-2003 07:18 AM

I always confound that, although I learned a little of latin in school :lol:
Preprocessing would be illogical.

muhali3

11-05-2003 04:19 PM

muhali3

11-05-2003 09:11 PM

i fixed my mosquito noise and rainbow problem. i just used GuavaComb and it cleaned it up pretty well, and thanks to incredible, blindpp next to avisource cleaned up my dct-blocks.

incognito

11-08-2003 04:58 AM

v4 looks great. thanks.

Wolfi

11-12-2003 03:15 PM

Maybe I've missed something but what exactly is better with this new version, comparing v3 and v4 :oops:

//Wolfi

muhali3

11-12-2003 03:54 PM

i guess it's more compression, while keeping a good amount of details.

Dialhot

11-12-2003 04:06 PM

You guess right. But the script is still evoluting.

http://www.kvcd.net/forum/viewtopic.php?p=51400#51400

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