Working with dephalo_alpha or filter to de-halo

[EuropeanMan]

Hi guys,

DVD: Lagaan DVD9 Disc 1
Region: PAL, DVD set is from India
AviSynth 2.5.8 w/ MT 0.7
Intel CoreDuo 1.83mhz
2GB ram
120GB hd

I have a simple script where I've gotten some nice sharpening.
However, in the far away scenes where the camera is focusing on distant characters/objects I see halos around the edges, as opposed to characters/objects that are right in front of the camera.

I am unfamiliar with the uses of dephalo alpha or other dehaloers...so was looking for some advice on how to remove the VERY visible halos around the edges.

Any & all advice is welcome. If you need a more detailed script from me as opposed to the shortened version below, I will share through PM only as I like to keep my scripts somewhat private. Thanks...

I'm also on MSN msgr: farooqhm@hotmail.com
yahoo msgr: anewlife007

Here are screenshots & sample http://maxupload.com/CA1F8A85

http://maxupload.com/img/A456E58F.png

http://maxupload.com/img/9B26F915.png

http://maxupload.com/img/6C51B816.png

http://maxupload.com/img/6831DF1E.png

http://maxupload.com/img/C55FC2CC.png


script:
blackman with cropping in one line, taps 16
ff3dfilter denoising
lsf with unsharpenmask, over 1, soft -1
lsf with smode 4, over 1, soft -20, lmode 1, strength 40, under 4

[Didée]

I will share through PM only as I like to keep my scripts somewhat private
So why do you make a public thread? Be consequent, and don't bother the public with your privates.

[EuropeanMan]

...edited out...since script has been shown already...

[Didée]

Yee, how happy I am now. I'll dance around my chair all night long. Oh, and "unherzlich" is spelled without a "t". Hertz is the unit of frequency.
Mate, don't you see that asking "hey, I don't want to show you what I'm actually doing, but someone please help me to do better" makes no sense. That's kindergarten.

>> dehalo still hasn't solved my halo problem

I don't see any urgent halo problems here. Those *slight* halos in the screenshots probably are self-made, caused by toooo much sharpening filters. Supposely the source is worn-out regarding detail, that's why you're trying to pimp it up somehow ... but it seems this source doesn't react gracefully to you strategy of sharpening.

The most destracting problems for me are the tons of mosquito noise, and that the sample is a blocking festival. Bitrate way too low / quantizers way too high.
(Could it be you're mistaking "mosquito noise" for "haloing"?)

This attempt of processing & encoding failed. Try again.

[EuropeanMan]

yes, i am trying to juice out the details.

if you look at the samples i have provided...the close-up shots of the people do not really have halos around their edges...but the distant shots of the doctor bent over a patient...you can see his whole character is aglow with the halo. :( if that's what you call mosquito noise...then i'm sorry...but i'm trying to figure out a good solution for my problem

what is your suggestion? would love any input...if you feel that there are other filters i can look at...what might those be?

thanks for your help in advance.

[*.mp4 guy]

Could you post some unfiltered, unaltered, lossless png's of the same shots as in your fist post, along with detailing your encoding settings.

[edit]after looking at the clip, I beleive what you are talking about is reffered to as "banding", which can be caused by compression, powerful denoising or powerfuld sharpening. In this case it looks like it was caused by compression

[EuropeanMan]

Didee was right...it's mosquito noise that I thought was haloing.


http://maxupload.com/img/29922868.png

that is a SS of a guy bending down over a patient...see his back...and all that...mosquito noise. i had thought that was haloing from the getgo.

http://maxupload.com/C63F613D

that link above is for original dvd9 material.

encoding settings...
megui
2-pass automatic
quant i/p/b min 2 max 15
quant type is mpeg

4cd rip 2800MB
with DTS audio 1.11GB
set bitrate with those settings ~1175

if there is more you need...let me know.
yes, encoding via Xvid 1.1.2...with of course DTS audio.

[superuser]

@Eu Man: in addition to wht mp4 mentioned sample from the original source from you are making will also be good.

@mp4: I was thinking EuMan is using pretty low sigma values for fft3d, so not sure if compression would play a role in this. more of I think the chain of sharperners with high strength on already a sharp can be the cause.

[EuropeanMan]

also the script above in post #3 is what i am using...but NOW, i will NOT be needing the dehalo line which made the mosquito noise worse.