How to Make Lego Mosaic Portrait in Photoshop

In this tutorial, we’ll learn how to make Lego mosaic portrait from any photo in Photoshop. Here’s the effect we’ll be creating:
 Lego Mosaic Portrait

To make Lego mosaic portrait, you’ll need:

  • Any recent version of Photoshop
Step 1
Open your picture in Photoshop. This effect works well with at least a 2000×2000 pixels photo. If your photo is smaller, you can make it larger by going to Image > Image Size. Don’t worry about making the photo blurry since we’ll be pixelating the photo anyways.
I’ll be using this stock image.
 Lego Mosaic Portrait Original
Step 2
Duplicate the background layer by pressing Command+J (Macs) / Ctrl+J (Windows) and rename the duplicate layer “Bricks”. Then, right-click on the Bricks layer and click on Convert to Smart Object.
 Lego Mosaic Portrait Smart Object
Step 3
Go to Filter > Pixelate > Mosaic and use a cell size that makes your photo barely discernible. Remember the cell size you use since we will be using it in the next step.
 Lego Mosaic Portrait Mosaic
Step 4
Create a new document with the same width and height as the cell size you used in the previous step. I used 64 as the cell size, so I’ll be making a 64×64 pixels document.
 Lego Mosaic Portrait New Document
Step 5
Go to Edit > Fill and use the settings shown below.
 Lego Mosaic Portrait Fill
 Lego Mosaic Portrait Fill Result
Step 6
Using the Ellipse Tool, make a circle in the center of the document. Hold Shift while making the circle to get a perfect circle. The color of the circle doesn’t matter here.
 Lego Mosaic Portrait Ellipse Tool
Step 7
Now, go to Layer > Layer Style > Blending Options and use the setting shown below.
 Lego Mosaic Portrait Blending Options
Next, use the following settings for the Bevel & Emboss and Drop Shadow.
 Lego Mosaic Portrait Bevel and Emboss
 Lego Mosaic Portrait Drop Shadow
Step 8
We will now apply a layer style to the background layer, but before that, we will convert the background layer into a normal layer by right-clicking on the background layer and selecting Layer from Background.
 Lego Mosaic Portrait Layer from Background
Now, right-click on the background layer, select Blending Options and use the settings shown below for the Bevel & Emboss.
 Lego Mosaic Portrait Bevel and Emboss Background Layer
Step 9
Turn this image into a pattern by going to Edit > Define Pattern and naming it something descriptive.
 Lego Mosaic Portrait Define Pattern
Step 10
Close the current document and go back to the main image. Click on the New Adjustment Layer option and select Pattern from the list that appears.
 Lego Mosaic Portrait Pattern
Choose the brick pattern we just created and click OK.
 Lego Mosaic Portrait Brick Pattern
Step 11
Change the Pattern Fill layer’s blending mode to Linear Light.
 Lego Mosaic Portrait Linear Light
This is what your image would like if Lego bricks came in every shade and color, but since that isn’t the case, we will compress it to a limited color palette in the next step.
Step 12
Click on the New Adjustment Layer option and select Posterize from the list that appears. Move this new layer below the Pattern Fill layer and change its blending mode to Luminosity.
 Lego Mosaic Portrait Posterize
Keep the Levels setting anywhere between 4 and 8.
 Lego Mosaic Portrait Levels
Step 13
We will now compress the color saturation of the image. To do so, click on the New Adjustment Layer option and select Solid Color from the list that appears.
 Lego Mosaic Portrait Solid Color
Choose any color and then set B (Brightness) at 100% and S (Saturation) at 75%. You can choose any color for the H (Hue).
 Lego Mosaic Portrait Color Picker
Move the Color Fill layer below the Pattern Fill layer and change the Color Fill layer’s blending mode to Saturation.
 Lego Mosaic Portrait Saturation
And we’re done! The Lego mosaic portrait tutorial is complete!
 Lego Mosaic Portrait


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