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— 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.
— Sat Low Soft/High Soft: Two parameters let you define the upper and lower softness falling off outside the current range of saturation.
— Lum Low/High: Two parameters let you define the upper and lower range of luma being isolated.
— Lum Low Soft/High Soft: Two parameters let you define the upper and lower softness falling off outside the current range of luma.
RGB Qualification Controls
The RGB Qualifier mode lets you isolate range and softness in the Red, Green, and Blue channels of an image. While this is not necessarily an intuitive way of manually creating a qualification from scratch, it can provide a different way of isolating potentially trickier ranges of the RGB color space.
If you start by sampling the image, then you can widen and narrow each color channel’s isolated range of values. In some cases, you may find it’s faster to isolate a specific range of continuous color by adjusting these controls.
RGB qualification controls
— Red Low/High: Two parameters let you define the upper and lower range of the Red channel being isolated.
— Red Low Soft/High Soft: Two parameters let you define the upper and lower softness falling off outside the current range of red.
— Blue Low/High: Two parameters let you define the upper and lower range of the Blue channel being isolated.