I'm currently trying out the asharp's adaptive sharpening. If it works as advertized ( ), then I'll turn it on. From the readme file of asharp, here's what it does:

- adaptive thresholding to avoid noise enhancement
- block adaptive sharpenning to avoid DCT block edges enhancement
- block based adaptive thresholding to avoid DCT block edges enhancement

So this combination, together with the adaptive filtering (bluring) on action and scene changes, should be a killer

-kwag

Note: The first line of "asharp" in the script should read: asharp(2,0) and not asharp(1,0).


I fixed that.

@Kwag
you wrote:
"@all,
Thanks for your patience"

are you kidding?
we all are thankfull for your great work.
without your friendship and developing,
this forum couldn't never be so great.
thanks for the script update too.


@audioslave
i ever use bicubic precise in all my tests and in the last encodes.


@all
great work!
i'm thankfull
the Kwag team is the best.

I just did a couple of tests using asharp.

Test Basics: (Current Script)

kvcdX3 - MPEG1 CQ=80 Sample Length=1656 Frames (69 seconds)
MinBitrate=300, Max Bitrate=2500, VBV=40, GOP 1-5823-2-1-24

Filesize with asharp(2,0) = 8,653,029
Filesize with asharp(2,2) = 7,236,833 (16.37% smaller)

kvcdX3 - MPEG2 CQ=80 Sample Length=1656 Frames (69 seconds)
MinBitrate=600, Max Bitrate=6000, VBV=224, GOP 1-5823-2-1-18

Filesize with asharp(2,0) = 19,076,155
Filesize with asharp(2,2) = 15,308,597 (19.75% smaller)

I don't see much difference in quality (but I don't have the best eyes. )
I think that adaptive shapening is the way to go with asharp.

Racer99

Here's a small ( ~1MB ) sample with the new script
www.kvcd.net/red-planet-short-asharp-704x480.mpg

-kwag

I did turn on adaptive shapening as asharp(2,4). The script was just updated with that. Also the small sample I just posted, was done that way

-kwag

Latest correction: I was passing bluring variables as INT instead of FLOAT
The scaling on blurring was incorrect, as it was in harder steps ( -1, -2, -3, etc. ).
Fixed. It's now floating point values ( -1.12, -2.142, etc. )


-kwag

hey Kwag,

i don't test the "very new" yet, i see it only now.
the last script before your corrections
give some staircases like in lanczos, did you see some like this?
i see it in detail in 352x240.
with more "resize" this thin lines with staircases are hard to see.

can i encode a movie using 720x480 in one cdr80 or
cdr90 with audio in 160k and got good result
i'm asking cos never did with more than 480x480.
i did only samples in pc and the results are incredibles.
i never see this resolution in the tv.

ps:
i got a new player phillips and he play all kvcds.
i did a big search to find what was the best.
2 weeks testing with tons of kvcds in the shops,
i post it in the portuguese forum.
the important now isn't the dvd player.
the best is the kvcd player


@racer,
i'm with you!
asharp(2,2) ... (2,4) give more sharp and less size!
i think that (2,2) is a "gently" sharpness.

Try it
The "Red Planet" samples I posted were all 704x480 with a CQ for one 80 minute CD
Audio at 112Kbps.

-kwag

sample very clear Kwag.

what CQ did you find in the sample

All were around CQ ~62 to ~63. I think I posted the CQ besides some of the samples

-kwag

God I was testing the whole night, and now everything has changed again...
well as for noise reduction and sharpness, I found that this line would best replace Unfilter(50,50) :

you might still wanna test it...

__________________
j3llyG0053

Hi Jellygoose,

Did you see the latest one: asharp(2, 4, 0.25, hqbf=true)
Have you tested that one
It seems that asharp is way faster than unfilter

-kwag

currently testing...

__________________
j3llyG0053

I just did a new clip of "Red Planet" with the new script, and it looks

-kwag

@kwag
So what are you waiting for?! Show us a clip, man!

EDIT: Would be nice with info on CQ etc.

Will do Give me about 15 minutes...

-kwag

Ok, this one should top just about every other sample ever made at KVCD.Net
www.kvcd.net/red-planet-extreme-704x480.mpg
Specs:
31 second sample, 3,838KB. Res. 704x480, CQ=63.42, MIN bitrate 300Kbps, MAX bitrate 2,500Kbps
KVCD "Notch" Q. Matrix. GOP 1-12-2-1-24, Current script as posted Ver. June 5, 2003 @05:45GMT

-kwag

@kwag
I didn't have any luck with squeezing "A Knight's Tale" onto one CDR . When I made the prediction I got a CQ value 25-30(!) for one CDR, and I guess that won't be very exciting to look at... If a movie contains a lot of fast action scenes will it be easier to fit on a single disc?