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2.4.4.71 Contrast

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The Contrast cell is a vScalar custom token grouping that specifies the contrast of an image. It MUST have a ShapeSheet_Type parent element or a StyleSheet_Type parent element.

The value of the structure MUST be expressed as a percentage, and MUST be greater than or equal to zero and less than or equal to one. The value is normalized such that a value of 1 corresponds to 100 percent. A value of 0.5 is the default contrast. A value of less than 0.5 decreases the contrast of the image; a value of greater than 0.5 increases the contrast of the image.