AviSynth best script for Resizing?

[VideoFanatic]

Some of my files are 352 x 480. I use this script to convert to 720 x 480.

Mpeg2Source("I:\New\1 = Test files\352 x 480.d2v", CPU=6)
BicubicResize(704,480)
AddBorders(8, 0, 8, 0)

Is there a better script I can use to resize in order to give the best quality?

The script must take 3 hours or less with a 1 hour 15 minute file.

[jagabo]

Depends on the material. Try nnedi3.

Mpeg2Source("I:\New\1 = Test files\352 x 480.d2v", CPU=6)
nnedi3_rpow2(rfactor=2,cshift="spline36resize", fwidth=704, fheight=480)
AddBorders(8, 0, 8, 0)

If the source has lots of DCT ringing noise it will be accentuated. Try using Deen() to reduce it first.

Mpeg2Source("I:\New\1 = Test files\352 x 480.d2v", CPU=6)
Deen(thry=6, thruv=8) #modify to suit source
nnedi3_rpow2(rfactor=2,cshift="spline36resize", fwidth=704, fheight=480)
AddBorders(8, 0, 8, 0)

[Gavino]

nnedi3_rpow2(rfactor=2,cshift="spline36resize", fwidth=704, fheight=480)

Since the source is 352x480, I think using nnedi3_rpow2 will double the height to 960 with nnedi3, then downsize back to 480 with spline36resize, causing vertical blurring.

Probably better just to use Spline36Resize directly instead of the original BicubicResize.
Alternatively, use TurnRight().nnedi3(dh=true).TurnLeft(), but this introduces a slight centre shift.

[AlanHK]

LSFmod is good for sharpening and resizing. I use it for crappy sources:

LSFmod(strength=100, dest_x=704, dest_y=480, defaults="fast")

[VideoFanatic]

Thanky guys, I'll give that a try. Jagabo I have a few questions starting from HERE but in particular you mentioned the ColorYUV(autogain=true) script. So if you could answer my colour question on that thread I would be grateful. Thanks