From [ http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=761070 ] referring to [ http://forum.doom9.org/showthread.php?t=140233&page=3 ]. Does low-pass filter “automatically” during resizing to reduce twitter/shimmer/aliasing etc.
- source=AviSource(“d:\fs.avi”).ColorYUV(levels=”TV->PC”).AssumeTFF #Expands levels if frameserved in YUY2
- IResize(source,720,480)
- function IResize(clip Clip, int NewWidth, int NewHeight) {
- Clip
- SeparateFields()
- Shift=(GetParity() ? -0.25 : 0.25) * (Height()/Float(NewHeight/2)-1.0)
- E = SelectEven().Spline36resize(NewWidth, NewHeight/2, 0, Shift)
- O = SelectOdd( ).Spline36resize(NewWidth, NewHeight/2, 0, -Shift)
- Ec = SelectEven().Spline36Resize(NewWidth, NewHeight/2, 0, 2*Shift)
- Oc = SelectOdd( ).Spline36Resize(NewWidth, NewHeight/2, 0, -2*shift)
- Interleave(E, O)
- IsYV12() ? MergeChroma(Interleave(Ec, Oc)) : Last
- Weave()
- }
Spline36Resize can be replaced by another resizer if you wish.