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View Full Version : Alignment (or registration) of two edit-identical clips (via MVTools?)


Synnove
4th December 2017, 22:12
I have two HD spec clips that are edit identical. They are different scans/masters of the same film, so the content is rather similar. The differences are the color grading and the frame geometry.

The A transfer is much much more detailed, crisp, and free of compression artifacts than B. However, the shadow detail has been crushed out of existence by a revisionist color-grader. I need to align the frames so I can combine the best attributes of both (I have the combination procedure finished, I just need to work out getting them aligned).

The geometry differences are nonlinear so I can't use something like Nuke's F_Align or Photoshop's align features, and they aren't constant through a sequence due to gate weave and the like. The framing is also slightly different.

I've an interleaved clip with the masking bars removed ready to go.

https://forum.doom9.org/showthread.php?t=154739 <- This individual seems to've had success but I've not been able to replicate it. It seems like the MVTools solution would work best but, when I tried to replicate pbristow's method, it turned in to a jello-esque dessert. um3k's solution aligned them okay, but it couldn't account for the nonlinear differences so they were at best aligned in the center only.

StainlessS
4th December 2017, 23:36
See here(dont know if of use):- https://forum.doom9.org/showthread.php?t=172136&highlight=spatial+align

I have to get back to something similar, although with linear crop/resize needed.
Maybe you can take something from above thread (eg RT_LumaCorrelation), and persuade some non linear resizer to assist
(I think there is a WarpResize or something like that on-site).

I will post whatever I get done (dont hold your breath, been trying to get back to it for months).

EDIT: WarpedResize (SimpleResize.zip)here:- http://avisynth.nl/index.php/SimpleResize