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Media Technology . Color Theory. Color Theory. Upon completion of this unit, you should be able to explain the additive color theory and describe how it is used in video. What is Color?. C o l o r :. “The appearance of objects or light sources described in terms of the

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Media technology l.jpg

Media Technology

Color Theory


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Color Theory

  • Upon completion of this unit, you should be able to explain the additive color theory and describe how it is used in video.

Media Technology I: Color Theory


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What is Color?

Color:

“The appearance of objects or light

sources described in terms of the

individual’s perception of them,

involving hue, brightness, and saturation.”

Webster’s II New College Dictionary

Media Technology I: Color Theory


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What is Color?

Hue:

“The dimension of color referred to a scale of perceptions ranging from red through yellow,green,andblue, and circularly back to red.”

Webster’s II New College Dictionary

Media Technology I: Color Theory


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What is Color?

Brightness:

“The dimension of color that represents its similarity to one of a series of achromatic colors ranging from very dim to very bright.”

Webster’s II New College Dictionary

Media Technology I: Color Theory


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What is Color?

Saturation:

“Degree of difference from a grey of the same lightness or brightness: vividness of hue.”

Webster’s II New College Dictionary

Media Technology I: Color Theory


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What is Color?

Where do you see the use of:

Hue, Saturation, Brightness ?

In the video menu when you try to adjust the color of you TV set.

Media Technology I: Color Theory


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What is Color?

Where do you see the use of:

Hue, Saturation, Brightness ?

In the color palette menu of your computer’s paint program when you try to adjust or choose a color.

Media Technology I: Color Theory


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The Color of Light

Media Technology I: Color Theory


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Two Color Types

Electronic Color

Pigment-Based Color

Media Technology I: Color Theory


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Electronic Color

Electronic color is used in video cameras and displayed on television and computer screens through the use of cathode-ray tubes (CRT).

Media Technology I: Color Theory


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Electronic Color

Color monitors use three different types of phosphors that appear red, green, and blue when activated. These phosphors are placed close together, and when combined in differing intensities can produce any color.

Media Technology I: Color Theory


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Electronic Color

Color video cameras use a prism system to split the light into the red, green, and blue signals.

Media Technology I: Color Theory


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Additive Primary Colors

Red

Green

Blue

Media Technology I: Color Theory


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Additive Color Theory

Red

Green

Blue

Media Technology I: Color Theory


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Additive Color Theory

Red

Magenta

Red

+ Blue

Magenta

Blue

Media Technology I: Color Theory


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Additive Color Theory

Red

Green

Yellow

Green

+ Red

Yellow

Media Technology I: Color Theory


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Additive Color Theory

Green

Cyan

Green

+ Blue

Cyan

Blue

Media Technology I: Color Theory


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Additive Color Theory

Red

Green

White

Red

Green

+ Blue

Blue

White

Media Technology I: Color Theory


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Pigment-Based Color

Pigment-based color is used in color printers, color filters, and color paints.

Media Technology I: Color Theory


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Pigment-Based Color

Color printers use cyan,magenta , and yellow pigments. These pigments when combined in differing intensities can produce any color.

Media Technology I: Color Theory


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Subtractive Primary Colors

Magenta

Yellow

Cyan

Media Technology I: Color Theory


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Subtractive Color

Media Technology I: Color Theory


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Subtractive Color

Magenta

+Cyan

Blue

Cyan

Magenta

Blue

Media Technology I: Color Theory


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Subtractive Color

Yellow

+Cyan

Green

Yellow

Green

Cyan

Media Technology I: Color Theory


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Subtractive Color

Magenta

+Yellow

Red

Yellow

Red

Magenta

Media Technology I: Color Theory


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Subtractive Color

Yellow

Magenta

+ Cyan

Yellow

Red

Green

Black

Black

Cyan

Magenta

Blue

Media Technology I: Color Theory


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