1. Home
  2. Design School
  3. Mosaic in Photoshop

Mosaic in Photoshop

Posted on 17th May 2018
For this tutorial, you will need an image, preferably a “Portrait” to be used as “Background” and at least 100 small images to be used in the “Mosaic”.

1 - Place your images (100) together in a “Folder”. If you want you can create two Sub-Folders and divide them between “Portrait” and “Landscape”.

2 - In Photoshop, open one of the images inside one of your folders. We started with “Landscape”. Go to the “Actions Panel” (Window > Actions) and “Create a New Action” by clicking on the small button at the bottom of the Panel. Give it a name and click “Record”.

3 - Go to Image > Image Size, use “Centimeters”, make sure the “Resample > Automatic” box is checked (so the “Height” will resolve itself automatically) and change the “With” to 1 and use a “Resolution” of 200 Pixels/Inch. Take notice of the “Dimensions” values on top (in our case 79 px x 53 px). Click “OK”.

4 - Close your image without saving, go back to the “Actions Panel” and click the “Stop” button. Repeat “Steps 3 and 4” for the “Portrait” Folder (but this time use the 1 cm value for the “Height”) and don’t forget to “Stop” the recording of your “Action”.

5 - Go to File > Scripts > Image Processor. Click the “Select Folder” button and navigate to one of your image folders. Save as a JPEG, check the “Run Action” box and choose the action you created for that particular folder (in our case “Resize Landscape”). Click “Run”. Wait until Photoshop finishes applying the “Action” and then repeat for the other folder. If you want, you can use the same value (1 cm) for “With” and “Height” and just do one “Action” and end up with a “Square” image, but take into consideration that the images will be deformed.

6 - Get your new re-sized images into one folder. Go to File > Automate > Contact Sheet II. Choose “Use > Folder” and navigate to the one containing your re-sized images. Select “Pixels” as “Units”, give “With” and “Height” the value of 790 (79 x 10) and a “Resolution” of 200 pixels/inch. Uncheck the “Flatten All Layers” box and in the “Thumbnails” section use “Place > Across first” and use a value of 10 for the “Rows” and “Columns”. Uncheck the “Use File Name as Caption” box. The number used in “Rows” and “Columns” should be divisible between the number of images you are using (in our case 100). Click “OK”.

7 - To fix some of the mismatches in sizes (If you decided to use the same “With” and “Height” for your images you won’t need to do this). Use your “Move Tool” (V) and making sure the “Auto Select” box is checked, click on top of the image you want to work with. Click on the “Chain link” icon between the “Image” and the “Mask”, then click on the image’s thumbnail and using “Free Transform” (Command/Control + T), Re-size it or Rotate it. Don’t forget to Re-link the “Layer Mask” when you are done.

8 - Repeat this with all the images that need it until they are uniform and you have no white spaces between them. If there is a white line in one of the sides just use the “Crop Tool” (C).

9 - Go to Edit > Define Pattern. Give it a name and “Save” it. Open the image you wish to apply the “Pattern” to.

10 - Click on the small Black and White Circle button at the bottom of the Panel and choose “Pattern” to create a “Pattern Fill Layer”. Choose 65% in “Scale” (or whatever suits you) and click “OK”. Change the “Blending Mode” of the “Patter” to “Overlay. We also decided to increase the “Scale” of the “Pattern” by double-clicking on top of its thumbnail and changing it to 90%.

11 - You can also, create a “New Brightness and Contrast Adjustment Layer” between your two Layers and crank the “Brightness” up to the Max. Then, change the “Pattern” Layer’s “Blending Mode” to “Multiply” and lower the “Opacity” to about 60%.

12 - Here are both options.

by @lornacane

Share this Tutorial

Have a question? Contact our Support for assistance.
$180 of design goods for JUST $1. Join Plus today for your discounted first month! VIEW OFFER
ol image