Hue/Saturation

Important Adjustment Layer Step for each color adjustment:

• Create a new adjustment layer by clicking Layer>New Adjustment Layer
• Select Hue/Saturation on the popup menu.

What does it do?

adjusts the hue, saturation, and lightness values of the entire image or of individual color components.

• 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.
  • Adjusting the lightness here is not advised since adjusting lightness with curves or levels does a better job. This lightness adjustment may reduce the detail in the image.
• You can also use the Colorize option to add color to a grayscale image converted to RGB, or to an RGB image--for example, to make it look like a duotone by reducing its color values to one hue.
• Click Image>Adjustments>Hue/Saturation
  The two color bars in the dialog box represent the colors in their order on the color wheel.

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• The hue is raised, which makes the red more orange
• The saturation is increased
• The red is darkened to give more contrast
• The changes are evident in the color bars at the bottom of the dialog box

The Edit dropdown list lets you change the hue/saturation for the all the color channels or for red, blue, or green color channels separately.

The upper color bar shows the color before the adjustment; the lower bar shows how the adjustment affects all of the hues at full saturation.

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Colorize creates a black and white image with one color added

• Colorizing an image is a good way to reduce the file size
• Click the foreground color tool in the toolbar
• Select the color for colorizing in the Color Picker
• Create a hue/saturation adjustment layer
• Select the colorize layer and turn the other layers above it off
• Click Image>Adjustments>Hue Saturation
• Click the colorize checkbox
• Adjust the sliders for the effect you want
• Click OK

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