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The Enthusiast's Guide to DIY Photography by Mike Hagen

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41. BACKGROUNDS: GREEN SCREEN

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GREEN SCREENS ALLOW you to drop in different backgrounds after you shoot. You do this in Photoshop using layers and selecting the green areas, then replacing those areas with the image of your choice. You can use anything you want for your background image including sky, swaths of color, forest scenes, and so on.

Traditionally, the color green is used because it is very different from colors found on most human subjects. The difference in color makes it easier to select in Photoshop. You can actually use any color backdrop as long as there’s nothing else on your main subject that is the same color as the background. ...

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