Apple Motion 2 - Manual (Page 733)

Chapter 10 Using Filters 733
HSV Adjust
An alternate method of performing color correction based on the HSV color model.
HSV is often used in color picking interfaces, and is employed by the default color
wheel method of the Apple Color Picker.
This filter provides controls to adjust the Hue, Saturation, and Value levels in an image,
independently. The Hue control is an angular representation of the color values in an
image. By rotating the Hue angle, you uniformly remap the colors throughout an
image, similar to the effect of turning the hue or phase knob of a broadcast monitor.
The saturation controls the intensity of the color in an image, with a high saturation
resulting in vivid color, and a low saturation resulting in a grayscale image with no color
at all. The Value slider, on the other hand, adjusts the overall brightness or darkness of all
colors in an image, including the blacks and whites in a desaturated image.
Parameters in the Inspector
Hue: Sets the angle of adjustment used to set the zero point of the color wheel.
Saturation: Sets the color saturation of the object, ranging from –1.0 (no color
information) to 0.0 (unadjusted color) to 3.0.
Value: Sets the intensity adjustment applied to the object, ranging from 0.0 to 2.0.
Dashboard controls
The Dashboard contains the same controls as the Inspector.
Invert
Inverts all color and brightness in an image. This filter can be used to turn a scanned
negative image into a properly displayed positive.
Parameters in the Inspector
There are no parameters for this filter.
Original image Image inverted
01112.book Page 733 Sunday, March 13, 2005 10:36 PM