How to offset chroma planes?

[Blue_MiSfit]

Hey folks,

I was wondering how to do a simple function in AviSynth: offsetting the chroma planes from the luma plane. I have some analog captures that are a bit offset, and the adjustment in ffdshow is too coarse. How can I do it more precisely, preferably both planes separately? Seems like it should be pretty simple.

Thanks!

~MiSfit

[AVIL]

Hi:

Try with this filter:

http://www.geocities.com/siwalters_uk/chromashift.html

good luck

[Blue_MiSfit]

Looks like it's what I need! Thanks!

[Chainmax]

You might also want to take a look at FixChromaBleeding (http://forum.doom9.org/showthread.php?t=77074), which uses ChromaShift.

[IanB]

If you need subpixel accuracy you could use the resizer core as a subpixel shifter....
deltaX = 0.666
deltaY = -0.789
Ch=BicubicResize(Width(), Height(), 1/3.0, 1/3.0, deltaX, deltaY, Width(), Height())
MergeChroma(Ch)