Sometimes finding an image that already has had it's background removed is hard. Or they just don't suit your needs. So I'm here to help you learn how to remove the background, also known as rendering, of your image. First, I'll show you the apps that I use to create edits.
All these apps are free to download, although there are options to buy things. Feel free to explore around and find any apps that suit your needs to accomplish this tutorial.
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For this tutorial I'll be using an app called MagicEraser. Most other apps I find either has a lag that makes rendering hard or you can't zoom in. However, you can try Eraser, Pic Eraser, Back Eraser and Background Eraser which are alright substitutes.
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Most rendering tools have something call an offset. The offset is the distance from the brush and your finger. To adjust to your liking please enter MagicEraser and select the photo you'll be using. I'll be using this one:
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After entering and selecting your photo, there should be a tool bar at the top. Press the middle button that looks like a paint brush. After that the words Offset and Soft should appear with a slider beside them. Adjust to your liking. I personally like having no offset and the softness at a low.