User Manual

One of the HSL Qualifier’s key strengths, and one of its most underutilized features, is that you
can enable or disable each of the three HSL components using the Hue, Sat, and Lum buttons,
using toggle controls found at the left of each qualifier range control’s name. This lets you
ignore specific color components, while focusing on others that are more important.
For example, if you’re trying to isolate the saturated parts of an image, regardless of the hue or
brightness, you can turn off the Hue and Lum qualifiers so that only Sat is used to sample
theimage.
Qualification with saturation only to isolate the most saturated portion of the picture
The HSL parameters include:
 Hue Center: Defines the center of the range of Hue being isolated.
 Hue Width: Defines the width of the range of hue being isolated. Widening or
narrowing this parameter widens and narrows the range of hue about the current Hue
Center.
 Hue Soft: Widens or narrows the falloff at both sides of the currently
selected range of hue.
 Hue Symmetry: Lets you selectively alter the angle of Hue Soft falloff at either the right
or left side. Lowering this parameter makes the softness to the right of the hue range
grow steeper. Raising this parameter makes the softness to the left of the hue range
grow steeper.
 Sat Low/High: Two parameters let you define the upper and lower range of saturation
being isolated.
Chapter – 119 Secondary Qualifiers 2709