Motion based crispness modulation - Is it lost?

[duartix]

Ok, remember Nandub?
There it was this old tool with a parameter called crispness modulation, which suposedly aplied an image bluring acording to the amount of movement therefore making frames with a lot of movement easier to compress (and probably with a lot less blocks too).

I can't tell you how well it worked but is there any reason why this approach never made it to the new codecs?

[Koepi]

Because these codecs don't use a softener filter as such filters modify the image too strong.

I thought as well sometimes that this could be useful, but in fact it isn't due to the abovementioned reason.

And btw., DivX>4 and XviD don't collect motion like nandub did - there's simply no need for as the motion estimation/compensation algorithms work different.

Regards,
Koepi

[OUTPinged_]

look at old threads, there was that question answered. (keywords: nandub, mbcm, ecf)