Apple Color 1.5 - Manual (Page 246)

Saturation Controls
Saturation describes the intensity of the color in an image. Image saturation is controlled
using three parameters which, similar to the other controls in the Primary In room, let
you make individual adjustments to different tonal zones of an image. Like the contrast
and color controls, tonality-specific saturation adjustments fall off gently at the edges of
each correction to ensure smooth transitions.
• Saturation: This parameter controls the saturation of the entire image. The default value
of 1 makes no change to image saturation. Reducing this value lowers the intensity of
the color of every pixel in the image; at 0 the image becomes a grayscale monochrome
image showing only the luma. Raising the saturation increases the intensity of the color.
The maximum saturation you can obtain by adjusting the “virtual slider” of this
parameter with the mouse is 4. However, you can raise this parameter to even higher
values by entering a number directly into this field.
Saturation reduced by more than half
Original image
246 Chapter 9 The Primary In Room