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Posted by sandy58 on 07/02/07 09:16
On Jul 2, 10:08 am, Léon Obers <mail.to...@invalid.invalid> wrote:
> Richard Crowley wrote:
> > "Léon Obers" wrote ...
> >> Has much options for tweaking. But you have to be a pro to understand
> >> the options.
> > Seems unrealistic to ask for something that powerful and
> > flexible, but without the ability to control it.
>
> That is not unrealistic at all to ask.
> There are much applications with easy to understand tools and settings
> to control deep inside very complicated processes for the "engine" behind.
> At least it should be normal within the help manual how to use these
> controls, but for the previous YASA application not one word about it.
> It is like using MSDOS commands within (or against) a Windows user
> interface.
>
> >> I was looking the tool for "deblocking" the mosaic artifacs in some
> >> fast changing images. Because I could not find, it is a no no
> >> application.
> > If you actually think the artifacts can be "deblocked" then
> > you don't understand how very lossy compression such as
> > is used on DVDs actually works.
>
> I think you don't understand the problem itself.
> The images from the DVD is not the problem, they do not contain the
> blocky artifacts. It is the output after ripping the DVD to another
> format and size that do contain blocky artifacts only at the point of
> very fast changing movie "scenes".
>
> Typically at more "slowly" changing movie scenes (the most of it) the
> problem is not there at all. Tools as "Deblocking" should be help to
> avoid these problems in fast changing movie scenes only.
> It should be possibly as the basic material is without errors.
>
> For the sake of quality images for compressed output maybe less
> compression only at those fast changing scenes. A smart application
> should look "forward" to detect these fast changing scenes and change
> the policy for converting. So a complete movie is converted and
> compressed in the most efficient way for a general even quality within
> the possibilities of a given general compression setting.
>
> >> So I am looking for a good application, with good quality image and
> >> much and easy tools to understand tweak in a great range of options.
> > Let us know if you find such a thing. I'm not holding my
> > breath in anticipation.
>
> I hoped power users in these newsgroup could help with their experience,
> but seems the only one that are posting to a question don't have
> experience either like me.
>
> --
> Vr.groet - regards, Léon Obers
YASA? You need NASA, mate. :-)
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