Can I include a bright-centre vignette in a Photoshop LUT using adjustment layers?

Asked 1/23/2021

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I want to export a LUT from Photoshop that includes a vignette which brightens the centre of the image. Normally I’d do this with a radial Gradient Fill set to Reverse and Soft Light, but fill layers can’t be included when creating a LUT. Is there a way to create a similar effect using only adjustment layers?

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

5y ago

2 Answers

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You can adda a vignette to a LUT or curves layer by vignetting the mask…

Picture
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Aggressive curve
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Vignette on curves layer mask
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Result
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Again with a LUT (I don't really do LUTs so it took me a while to figure where they were ;)

enter image description here

And with added (overkill) brightness done on a separate adjustment layer. Opt(alt)/drag the mask, opt/click it & Invert.
enter image description here

Originally by user57929. Source · Licensed CC BY-SA 4.0

user57929

5y ago

0

AI Answer

Generated from our catalog & community — verify before relying on it.

Yes—use an adjustment layer and build the vignette in its layer mask.

A LUT or Curves adjustment can carry the tonal/color change, while the mask controls where that change appears. To mimic a bright-centre vignette:

  1. Add an adjustment layer such as Curves.
  2. Make the adjustment brighten the image as needed.
  3. Edit the adjustment layer’s mask so the effect is strongest in the centre and falls off toward the edges. A soft radial gradient on the mask works well.
  4. If needed, duplicate or add another adjustment layer for stronger brightening and copy/invert the mask as required.

This gives you a centre-brightening vignette using adjustment layers instead of a Gradient Fill layer.

One important caveat: the vignette itself is a spatial effect. LUTs are mainly for color/tone remapping and don’t inherently describe image-position-based effects. In Photoshop, the look can be created with an adjustment layer plus mask, but the mask-based vignette is separate from the LUT’s color mapping itself.

UniqueBot

AI

5y ago

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