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2.1.1.7 CurveAdjustments Enumeration

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The CurveAdjustments enumeration defines adjustments that can be applied to the color curve of an image.

 typedef  enum 
 {
   AdjustExposure = 0x00000000,
   AdjustDensity = 0x00000001,
   AdjustContrast = 0x00000002,
   AdjustHighlight = 0x00000003,
   AdjustShadow = 0x00000004,
   AdjustMidtone = 0x00000005,
   AdjustWhiteSaturation = 0x00000006,
   AdjustBlackSaturation = 0x00000007
 } CurveAdjustments;

AdjustExposure:  The simulation of increasing or decreasing the exposure of an image.

AdjustDensity:  The simulation of increasing or decreasing the density of an image.

AdjustContrast:  An increase or decrease of the contrast of an image.

AdjustHighlight:  An increase or decrease of the value of a color channel of an image, if that channel already has a value that is above half intensity. This adjustment can be used to increase definition in the light areas of an image without affecting the dark areas.

AdjustShadow:  An increase or decrease of the value of a color channel of an image, if that channel already has a value that is below half intensity. This adjustment can be used to increase definition in the dark areas of an image without affecting the light areas.

AdjustMidtone:  An adjustment that lightens or darkens an image. Color channel values in the middle of the intensity range are altered more than color channel values near the minimum or maximum extremes of intensity. This adjustment can be used to lighten or darken an image without losing the contrast between the darkest and lightest parts of the image.

AdjustWhiteSaturation:  An adjustment to the white saturation of an image, defined as the maximum value in the range of intensities for a given color channel, whose range is typically 0 to 255.

For example, a white saturation adjustment value of 240 specifies that color channel values in the range 0 to 240 are adjusted so that they spread out over the range 0 to 255, with color channel values greater than 240 set to 255.

AdjustBlackSaturation:  An adjustment to the black saturation of an image, which is the minimum value in the range of intensities for a given color channel, which is typically 0 to 255.

For example, a black saturation adjustment value of 15 specifies that color channel values in the range 15 to 255 are adjusted so that they spread out over the range 0 to 255, with color channel values less than 15 set to 0.

Bitmap images are specified by EmfPlusBitmap objects.

See section 2.1.1 for the specification of additional enumerations.