An actor in a green monster suit won't stand out against a green screen, but the same character proves easy to extract from in front of a blue wall. Selecting a background color for this process means choosing a shade that doesn't exist in the foreground subject. Not all green-screen techniques actually use green screens. Note that the Extract plugin appears only in the Windows edition of Adobe Photoshop CC and Adobe Photoshop CS6, because it presents compatibility problems with Mac OS X. Other approaches use the Magic Wand to select an exceptionally evenly lit background color apply calculations to blend two channels of the image, creating a new channel that can serve as a mask apply a Hue/Saturation adjustment layer to neutralize the green or use the Masks panel to add a mask that you fine-tune using the Color Range option built directly into the mask creation process. Depending on the appearance of an individual green-screen shot, you may see good results from the Extract filter plugin. The more you use Adobe Photoshop, the more methods you accrue for approaching an individual type of task. This simplifies the task of selecting and removing the background. The best green-screen images use even lighting to maintain equally even coloration across the entire shot.
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