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Originally Posted by DanielSB
That's some darn nice lateral avisynth fu there, raffriff42!!!  |
Thanks!
Quote:
Originally Posted by DanielSB
I wonder if that could be automated in any way ... if one could like set a threshold...
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Yeah, maybe. Something like that
Quote:
Originally Posted by DanielSB
I'm not quite sure on how to actually understand the output, though... What's the first "diff" image, for instance?
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It represents what has changed between the original image and the processed image. It's almost
* what you would see if you opened an image in Photoshop/GIMP/Paint Shop Pro etc >> duplicate as new layer >> do something to the dupe layer like soften >> set merge/overlay mode to "difference."
This is a trick I use all the time when working with images, and I wanted an Avisynth script to do the same thing. It uses MaskTools' mt_lut because that's what I was reading about at the time
The second diff image exaggerates the first by 4x to make the changes more visible.
* Overlay(mode="subtract").Tweak(bright=16) is actually closer to Photoshop; the mt_lut method I show
might be "better" because of the "absolute value" term. It shows all differences, where the Overlay/Photoshop method "hides" the negative-going diffs.