Double exposure is a photography technique where it looks like two images have been stacked together. This effect has roots in film photography where photographers would blend and merge two separate photos together by exposing the film twice. Today, it's easier than ever to do that in Polarr thanks to our new overlay tool. Here's how you can do it yourself.
How to do double exposure in Polarr
Select your images
Getting a good double exposure photo relies on making sure the initial photos you select work well. We think that silhouettes of people work the best. Especially when the background behind them is a solid color. The image you blend and double expose into them should be interesting.
So in this tutorial, we have a silhouette of a ballerina as our base and a picture of some red flowers that we'll then "double expose" on top of her silhouette.
Go to the overlay tool
For this tutorial, you'll only need to use the overlay tool in Polarr. Head there and go to the custom section where you'll select another photo to place on top of the one already loaded. In the video, you'll notice we already had the flower photo loaded into the app.
Rearrange the photo
Move the image you want on top to your desired position in relation to the base photo. You can always adjust it later, but it's helpful to place it where you might want it before you continue to the next steps.
Make a mask
Click on the icon that looks like an eraser, there you'll see options for a bunch of different ways on how you can combine the two photos. The eraser will allow you to erase portions of the flower photo, but today we're going to use a color mask.
Place the color selector for the color mask over the silhouette. This will target and create a mask on all of the really dark areas of the photo, in this case, the ballerina.
Adjust feathering and opacity
Next is the part where you play around with the feathering of the mask and the opacity. This is all personal preference, so do what feels right for your photo. You could also go to the blending modes and see if different ones work best for your aesthetics.
Try it yourself. The photos in this tutorial come from Unsplash and you can download them yourself to try on Polarr.