Bring up the mask options and select ‘Duplicate Mask.’ Do this as many times as necessary. When you’re satisfied, tap the Detail section of the menu at the bottom of the screen.Īs with the previous method, you can increase the amount of blur if you’re not satisfied with the result.Use the Eraser tool if you accidentally brush over what you shouldn’t have. You will see the transparent red overlay over the area covered by the brush. You will use a brush to select the portions of the image that need to be blurred. The third way to blur the background of an image in the Lightroom app is to use a brush. To do that, you should bring up the mask options and tap on ‘Duplicate Mask.’ Repeat this step as many times as you see fit.
In case you’re not satisfied with the result, you can increase the amount of blur. Tap on the Detail section at the bottom.Position the filter so that it covers the part that needs to be blurred.Select the graduated filter from the menu.