Apply A Gradient Map To An Image - Adobe Photoshop CS6 User Manual

the image back to the previous color mode, and replace the various gray tones with the colors you want.
1. Do one of the following:
Click the Posterize icon
Choose Layer > New Adjustment Layer > Posterize.
Note: You can also choose Image > Adjustments > Posterize. But keep in mind that this method makes direct adjustments to the image
layer and discards image information.
2. In the Adjustments panel (CS5) or Properties panel (CS6), move the Levels slider or enter the number of tonal levels you want.

Apply a gradient map to an image

The Gradient Map adjustment maps the equivalent grayscale range of an image to the colors of a specified gradient fill. If you specify a two-color
gradient fill, for example, shadows in the image are mapped to one of the endpoint colors of the gradient fill, highlights are mapped to the other
endpoint color, and midtones are mapped to the gradations in between.
1. Do one of the following:
Click the Gradient Map icon
Choose Layer > New Adjustment Layer > Gradient Map. Click OK in the New Layer dialog box.
Note: You can also choose Image > Adjustments > Gradient Map. But keep in mind that this method applies the adjustment directly to the
image layer and discards image information.
2. In the Adjustments panel (CS5) or Properties panel (CS6), specify the gradient fill you want to use:
To choose from a list of gradient fills, click the triangle to the right of the gradient fill. Click to select the desired gradient fill, and then
click in a blank area of the Adjustments panel (CS5) or Properties panel (CS6) to dismiss the list. For information on customizing the
gradient fill list, see Work with the Preset Manager.
To edit the currently-displayed gradient fill, click the gradient fill, and then modify the existing gradient fill or create a gradient fill in the
Gradient Editor. (See Create a smooth gradient.)
By default, the shadows, midtones, and highlights of the image are mapped respectively to the starting (left) color, midpoint, and ending
(right) color of the gradient fill.
3. Select either, none, or both of the Gradient options:
Dither Adds random noise to smooth the appearance of the gradient fill and reduces banding effects.
Reverse Switches the direction of the gradient fill, reversing the gradient map.
More Help topics
Adjusting hue and saturation
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in the Adjustments panel.
in the Adjustments panel.
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