Photoshop refine Mask Tricks in 2022

Colin Smith

There are many ways of making selections in Photoshop. Sometimes the masks need to be cleaned up, because they can appear like snow, or just specks here and there. This Photoshop tutorials shows you an easy way to reveal spots on your mask and a quick way to clean up all the specks.

These are techniques I have been using for years and they work on any version of Photoshop including the latest.  This tutorial isn’t about making masks, ((In-depth course on selections and masks in Photoshop). This tutorial teaches you how to clean up your mask. I’ll use color range for this example, but you can use any tool, the point of the tutorial is to show you how to fix your masks.

Subscribe on YouTube:

Making a selection in Photoshop with Color Range

This is the starting image, of course, you will be using the images you are working on. If you already have a selection, skip to the mask tricks in step 2.

Long jumper in mid air over a sand pit under a cloudy sky, the starting image

To make a selection of the sky area, choose Selection>Color Range. (Remove background with Photoshop Color range)

Once again, it doesn’t matter what you are selecting for this Photoshop tutorial, as it will work on many types of selections.

Photoshop Select menu with Color Range highlighted over the long jumper photo

Choose the eyedropper in Color Range and click on the image to select a color on the background

Color Range dialog with the eyedropper sampling the sky, shown as a grayscale selection preview

Choose the plus-eyedropper to add to the selection

Click on other colors on the background, or drag to expand the selection.

Use Fuzziness to change the sensitivity.

Click ok

Color Range preview with more sky added, the long jumper now a black silhouette on white

We now have a selection.

Marching ants selection of the sky around the long jumper made with Color Range

Hold down Alt/Option and click the new layer mask to transer the selection into a layer mask.

Alt or Option clicking the layer mask button to turn the selection into an inverted mask

How to easily find problems in your Photoshop Layer Mask

Here is our first tip. Mask trick #1: You have a selection, it’s clear some of the problem areas, but these can easily be highlighted.

Long jumper with the sky masked out to transparency, leaving small leftover specks

With your Layer mask selected, click fx, for layer Styles and choose Stroke.

Stroke chosen from the fx layer styles menu with the layer mask selected

Now you can easily see all the problem areas.

Change the color and stroke amount to make it more obvious.

Click ok. We have now easily identified the problems. I often keep the stroke until I have finished refining the mask, because its super easy to see the problems.

Bright green stroke layer style revealing the problem areas in the long jumper mask

Tip 2: Cleaning up noisy Masks in Photoshop

Now we have identified the problems, let’s clean them up.

This won’t happen on every selection, but sometimes you will get a lot of little spots everywhere. Sure you can paint them all away one at a time, but here is a quick way to get these pesky 1-2 pixel spots to go away.

With the Mask selected, press Ctrl/Cmd+L for levels.

Levels dialog on the layer mask, with green specks still showing around the athlete

Slide the black slider to the right. Sometimes, you will slide the white slider to the left, it will be obvious which you need once you start sliding.

As you slide, you are cleaning the mask and all the tiny dots will disappear in seconds.

Mask Levels black slider moved right, cleaning away most of the green specks

If the spots are stubborn, try adding slight (1px or less) blur to the mask before levels. Filter>Blur>Gaussian Blur.  (see the video at the top)

Gaussian Blur dialog set to a 1 pixel radius to help clean stubborn spots on the mask

Painting on A Photoshop mask

The tips are above, but just to round out the tutorial, here is how to manually finish the mask.

Choose the Brush tool (Make it a hard edged brush)

Brush tool selected in the Photoshop toolbar to paint on the layer mask

Choose black as foreground color.

Black foreground color and white background color swatches in the Photoshop toolbar

With the mask selected, paint away the trouble spots.

If you want to paint anything back into the image, change to white as your painting color

Painting away the remaining trouble spots on the mask around the long jumper

When you are done, hide the stroke layer style and you have a nice cutout.

Clean cutout of the long jumper over the sand pit with the stroke layer style hidden

I hope you found these masking tips helpful. There are many more tutorials here at PhotoshopCAFE on masking, selecting and refining edges, as well as every other type of Photoshop tutorial. Have a little binge on some of our tutorials, you won’t regret it 🙂

As always, It’s great to have you here at the CAFE!

Colin


Follow along for more tips

Keep growing with Premium Courses

Photoshop 2026 for Digital Photographers

Learn Photoshop properly, from the basics to pro retouching, step by step.

$129.00 · one-time purchase · instant download

Photoshop Vault: free Layer Blend Modes ebook, actions, brushes, presets and cheat sheets

Free for you

The Photoshop Vault

Get my free Layer Blending Modes ebook along with dozens of exclusive Photoshop goodies: actions, brushes, presets and cheat sheets.

You're on the list, so your free goodies are waiting for you in the Vault.

Get Free Photoshop Goodies Open the Vault

7 comments

  1. Fotomaker

    This was completely new to me as a way to clean up masks. I’m definitely going to try it on my pics. Thx Colin!

  2. mike yates

    thanks this is new to me . i did not know about this tip brfore thanks colin

  3. Cheryl Perez

    I hadn’t seen this trick previously. Thanks Colin. Looking forward to using it.

Leave a comment

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Copy link