Apple Color 1.5 - Manual (Page 224)

Using Color Balance Controls
The color balance controls (which are sometimes referred to as hue wheels) work as virtual
trackballs on the screen; however, they consist of three separate controls.
Saturation slider
Hue slider
Output display Luma reset button
Color balance reset
button
• Color Balance wheel: A virtual trackball that lets you adjust the hue (set by the handle's
angle about the center) and saturation (set by the handle's distance from the center)
of the correction you're using to rebalance the red, green, and blue channels of the
image relative to one another. A handle at the center of the crosshairs within the wheel
shows the current correction. When the handle is centered, no change is made.
• Hue slider: This slider lets you change the hue of the adjustment without affecting the
saturation.
• Saturation slider: This slider lets you change the saturation of the adjustment without
affecting the hue. Drag up to increase the saturation, and down to decrease it.
• H, S reset button: Clicking the H, S reset button resets the color balance control for that
tonal zone. If you're using a control surface, this corresponds to the color reset control
for each zone. (These are usually one of a pair of buttons next to each color balance
trackball.)
• L reset button: Clicking the L reset button resets the contrast slider for that tonal zone.
If you're using a control surface, this corresponds to the contrast reset control for each
zone. (These are usually one of a pair of buttons next to each color balance trackball.)
• Output display: The output display underneath each color control shows you the current
hue and saturation values of the color balance control and the lightness value of the
contrast slider for that zone.
Note: The color balance controls can be accelerated to 10x their normal speed by
pressing the Option key while you drag.
224 Chapter 9 The Primary In Room