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SOFTWARE

Use Magic Eraser To Replace A Background

8/19/2013 9:04:48 AM

For quick and accurate edits, Pixelmator’s tools shine bright

Difficulty: Beginner

Time needed: 10 minutes

Editing images with Pixelmator can be a real joy. Not only is it a really versatile image manipulation suite, but the toolset is among some of the smartest we’ve had the pleasure of using. One such tool that we’ve been attempting to master recently is the Magic Eraser, which is a great way of removing background elements of a photo.

What you need to start with is an image with a fairly plain, high-contrast background for the easiest experience in removing it from the subject. More textured images can because you issues when you increase the threshold because colors begin to blend. It’s not impossible, but it can slow you up considerably, and at that point other tools may actually be more worthwhile.

Step-by-step: Pixelmator Master the Magic Eraser

1.    Start selecting

The Magic Eraser sits just below the Healing tool. Tap and hold on your selected image to use it. As you drag away from this center point, you set the threshold.

Start selecting

2.    Go slowly

Increasing the threshold too fast can select more of the image than you want. Move in small segments, especially around tough areas like hair.

Go slowly

3.    Replace background

With the background of your image removed, drag and drop a new photo on top. Resize the image to fit your frame and then move the layer to the back.

Replace background

4.    Find details

With your original photo on top you should be able to pick out any areas that still need fixing. Reselect the Magic Eraser and tidy up some of those loose edges.

Find details

More quick tips

How to make Magic Eraser’s job easier

1.    Draw a boundary

Using the standard Eraser tool you can draw a boundary around an image’s subject. This should make selecting larger areas to delete a lot easier. Now you can concentrate on details.

Using the standard Eraser tool you can draw a boundary around an image’s subject.

2.    Dark dangers

Intricate work is tough enough with Magic Eraser, but when you have a dark subject against a dark background, setting a threshold is tough. Think about changing brightness.

Dark dangers

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