Apple Aperture 2 Manual do Utilizador descarregar pdf (Página 418)

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418 Part III Performing Image Adjustments

To adjust the contrast in an image:

1 Select an image.

2 In the Enhance area of the Adjustments inspector or the Adjustments pane of the

Inspector HUD, adjust the Contrast parameter by doing one of the following:

Â Drag the Contrast slider.

Â Click the left or right arrow in the Contrast value slider to change the contrast of the

image by 5 percent increments, or drag in the value field.

Â Double-click the number in the Contrast value slider, then enter a value from

–1.00 to 1.00 and press Return.

A value below 0.0 decreases the contrast in the image. A value greater than 0.0

increases the contrast in the image. The contrast in the image updates as you change

the parameter value.

Note: If you’re trying to retrieve detail in a high-contrast image, you should use the

Highlights & Shadows controls. For more information, see “Working with the Highlights

& Shadows Controls” on page 435.

Use the Contrast slider

and value slider to

modify the contrast

between light and dark

colors in the image.

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