Adjust Hue/Saturation ...

The Hue/Saturation command lets you adjust the hue, saturation, and lightness of the entire image or of individual color components in an image. Adjusting the hue, or color, represents a move around the color wheel. Adjusting the saturation, or purity of the color, represents a move across its radius.

Hue - the values displayed in the text box reflect the number of degrees of rotation around the wheel from the pixel's original color. A positive value indicates clockwise rotation, a negative value indicates counterclockwise rotation. Values can range from -180 to +180.

Saturation - the color shifts away from or toward the center of the wheel, relative to the beginning color values of the selected pixels. Values can range from -100 to +100.

Lightness - enter a value or drag the slider to the right to increase the lightness or to the left to decrease it. Values can range from -100 to +100.

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