>Hi Matto,
Hey, Andrew, happy new year,
>I haven't had a chance to look at the code so I don't know how wide the
>H-scaling filter can be.
A filter can be as wide as it wants to be --- the code is quite general
in that regard (hence not as fast as it could be for any given filter).
> H
> From: Matto Marjanovic <[EMAIL PROTECTED]>
>
> How about trying it without yuvdenoise in the pipeline?
> yuvdenoise does quite a bit of low-pass filtering of its own, which means
> that later stages are less prone to aliasing ('cause it leaves less HF
Ok - here you are - and this almo
Hi Matto,
I haven't had a chance to look at the code so I don't know how wide the
H-scaling filter can be. However, if you can do it a Lanczos kernel or
windowed sinc at 7 or 9 taps width is generally what is used professionally
(resources permitting).
V-scalers are usually narrower as video s
> From: Trent Piepho <[EMAIL PROTECTED]>
> > -rw-rw-r-- 1 sms wse 144355260 Dec 30 18:55 chicken-y4mscaler.mpg
> > -rw-rw-r-- 1 sms wse 146821024 Dec 30 16:45 chicken-yuvscaler.mpg
> >
> > Not bad at all!
>
> Does the smaller output size actually mean y4mscaler is "better"? Running
> You rang? ;)
>
> 14000 frames (~8 minutes) of data captured (by another Canopus convert)
> from a VHS tape and on its way to SVCD.
>
> 1)
> smil2yuv -a $N.wav $N.smil | \
> y4mshift -n -6 | \
> yuvdenoise -S 0 -r 16 -t 5 -l 3 -b 20,56,
On Mon, 30 Dec 2002, Steven M. Schultz wrote:
>
> The two .mpg files:
>
> -rw-rw-r-- 1 sms wse 144355260 Dec 30 18:55 chicken-y4mscaler.mpg
> -rw-rw-r-- 1 sms wse 146821024 Dec 30 16:45 chicken-yuvscaler.mpg
>
> Not bad at all!
Does the smaller output size actually mean y4m
> From: Matto Marjanovic <[EMAIL PROTECTED]>
> yuvscaler, but, yes, it also seems to do be able to do a better job
> of downscaling --- i.e. less junk in the high-frequency bands. I'd
> be curious to see the results of an independent real-life comparison
> of MPEG encoding bit usage using the
>Version 0.2.0 of y4mscaler is now available on-line at:
>
> http://www.mir.com/DMG/Software/y4mscaler.html
In case anyone has downloaded this since my last message, please do it
again...
The previous version was compiled without any optimization enabled.
I just uploaded a "-O2" version.
