Moire Reduction using Lightroom adjustment brushes

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Lightroom Tip: Moire Reduction

Below is a helpful transcription of the above video.

Just a quick tip. I occasionally produce tips and you might want to jump on my YouTube or Vimeo and you can see some of those. I haven't posted one for a while, but this is a new one that I thought you might like.

I've been shooting corporate portraits, as you can see just on the bottom here and this particular portrait of this gentleman has some visual issues.

I think it's fairly obvious you can see this patterning. It happens on shirts sometimes and this is an effect called moiré patterning, and you can see here that's quite pronounced.

You can see that the gentleman's wearing some pinstripe shirts and you get this effect, (this moiré effect) happens when the lines of the pinstripes line up with the sensor, and it causes some interference lines and the result is this color banding that appears.

It’s only an effect seen on digital cameras. I'm sure they'll find some way of getting rid of it eventually. But until then there's a neat little trick within Lightroom in order to reduce or remove the effect.

If we zoom out a little bit you can see the full extent of the banding. I posted a little tip a while ago, but they've moved things around a little bit in Lightroom and this is the latest version of Lightroom.

Adjustment brushes and how to apply them

So under your masks, cropping tools, and healing and things like that, there's a little adjustment brush tool now.

You can click on the brush and then you can do all sorts of things. But essentially you want the brush tool. And from the brush tool, it puts a little layer mask on so it's non-destructive, and you can see exactly what you're doing. It's quite clever.

So come down on the brush tool, you'll see lots of ways of altering specific areas using the brush. But what you want is this moiré slider here. And the moiré you set -- I mean I'm just going to crank it up to 100, because I don't want any of the moiré effects. What you do is you take your brush and then you paint over the effect, and you can see that it does a pretty good job of reducing the effect. Just go over it again and you can see it does a really good job of just removing most of the moiré that’s present.

Removing stubborn moiré effects.

Now if you find that it's not enough, what I would suggest that you do is go up and give yourself a new brush. So go for a new brush, and you just apply the effect again. Put in another moiré at 100, and just paint over the top of it. And that should reduce the majority of it away.

I would suggest you only paint over the affected area. I wouldn't go anywhere other than the shirt, because I believe this has the effect of reducing the color in certain layers. I don't quite know actually how it works, but it's part of Adobe's magic.

But as you can see, if I hover over, you can see the various bits that I've actually affected. And if you don't like it, you can just remove it by pressing delete and it will get rid of the adjustment mask. And then it's as simple as anything to put a new one in.

So I just thought I'd show you that just very quickly. I hope that's useful.

You can see more examples of corporate-style portraits or feel free to get in touch if you have a project I can help with.