As you may know, Instant Alpha is a feature that allows you to remove an object in an image from its background. You can find this feature in apps like Pages and Keynote, as well as the Preview app that comes built-in on Macs. As we’ve written recently in articles about signatures and marking up images, Preview has a lot of capabilities that don’t get much press.
In this article, you’ll learm how to use Instant Alpha and Smart Lasso to create custom images, remove an object from its background, and some advantages of using Preview to create custom images.
Images created in this way could be used for anything, including fun social media posts. They can be imported into iPhoto, cropped and used in books, calendars, or especially to customize a birthday or greeting card. Depending on what kind of image you want to create, you can really do quite a bit using Preview, Pages and a few other tips and tricks.