Adobe ADBCD17648MC 사용자 설명서

USING PHOTOSHOP ELEMENTS 8
Understanding color

A large percentage of the visible spectrum can be represented by mixing red, green, and blue (RGB) light in various 
proportions and intensities. These three colors are called the additive primaries. Added together, red, green, and blue 
light make white light. Where two colors overlap, they create cyan, magenta, or yellow.

The additive primary colors are used for lighting, video, and monitors. Your monitor, for example, creates color by 
emitting light through red, green, and blue phosphors.

The color wheel is a convenient way to understand and remember the relationship between colors. Red, green, and 
blue are the additive primaries. Cyan, magenta, and yellow are the subtractive primaries. Directly across from each 
additive primary is its complement: red-cyan, green-magenta, and blue-yellow.

Each subtractive primary is made up of two additive primaries, but not its complement. So, if you increase the amount 
of a primary color in your image, you reduce the amount of its complement. For example, yellow is composed of green 
and red light, but there is no blue light in yellow. When adjusting yellow in Photoshop

  Elements, you change the color 

values in the blue color channel. By adding blue to your image, you subtract yellow from it.

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