View Single Post
Old 20th May 2009, 16:01   #27  |  Link
madshi
Registered Developer
 
Join Date: Sep 2006
Posts: 9,140
Quote:
Originally Posted by MfA View Post
Well I didn't say the first one was simple


Quote:
Originally Posted by MfA View Post
For the second one you simply apply a FIR filter with taps 7/720, -11/90, 49/40, -11/90, 7/720 in both dimensions and then you do bi-linear interpolation.
That sounds easy enough!! But are those taps identical for any up- and downscaling ratios? Normally when doing (big) downscaling a lot more taps are used than when doing upscaling...

Thanks!
madshi is offline   Reply With Quote