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Chapter 7. Getting Creative with Keys > Image Matte Keys for Cookie-Cutter Effe...

Image Matte Keys for Cookie-Cutter Effects

Because television is filled with so many complex images and effects these days, you might wonder how some of them are created. The image matte key effect allows you to use a still image to cut out any custom shape you design and fill it with video (see Figure 7.12). Therefore, you can design a still black-and-white graphic (in any paint program) and use that shape to define the image's borders. No more plain, rectangular Picture-in-Picture windows. Black-and-white images work the best for clean, crisp-edged cuts. You can also use any shades of a grayscale image for matte keys. This results in shadow- or blend-style effects. Gradients in your still image (fades from black to white) produce a soft-edge shadow effect. Image matte keys work with layers.

Figure 7.12. Create custom matte keys using any grayscale image.



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