Scaling quality

[kolak]

Just a simple question for people with knowledge.

Is this an advanced scaling method:

Sinc(x) video interpolation algorithm using 25 X 25 TAPS with 1/128th subpixel scaling accuracy

or nothing special?


Thanks,
Andrew

[Didée]

Available in Avisynth 2.6 as "SincResize", afaik.

Generally (and IMHO), there's too much believe out there into any "magic" to be found in the family of polynomial resizers. But truly, the magic is very little.

What you have is a triangle. The triangle's edges are named "softness" (or "sharpness", which to this extend is the same thing), "ringing" and "aliasing". Different polynomial scaling algorithms are located at different positions in this triangle. However, ALL of them are located WITHIN the very same triangle. Sharp algorithms create either ringing or aliasing. Non-ringing scalers either create aliasing, or are soft. A scaler free of aliasing either will cause ringing, or it will be soft. No magic in sight.

[hanfrunz]

Here is the "magic" resizer: http://www.resizer.info/

:p

[kolak]

Available in Avisynth 2.6 as "SincResize", afaik.

Generally (and IMHO), there's too much believe out there into any "magic" to be found in the family of polynomial resizers. But truly, the magic is very little.

What you have is a triangle. The triangle's edges are named "softness" (or "sharpness", which to this extend is the same thing), "ringing" and "aliasing". Different polynomial scaling algorithms are located at different positions in this triangle. However, ALL of them are located WITHIN the very same triangle. Sharp algorithms create either ringing or aliasing. Non-ringing scalers either create aliasing, or are soft. A scaler free of aliasing either will cause ringing, or it will be soft. No magic in sight.


Thanks- I know there is no magic- it just a question if this is good implementation of resizer as Bluefish444 is proud of it :)
They use it in their latest capture cards.

Andrew

[kolak]

Here is the "magic" resizer: http://www.resizer.info/

:p

:thanks:

Hahahaha :)