Adobe Photoshop CS3 Manual de usuario descargar pdf (Pagina 106)

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PHOTOSHOP CS3

User Guide

Sometimes colors rendered by the Camera Raw plug-in do not look as expected. The cause may be a difference

between a camera’s profile and the profile in Camera Raw for that camera model. Alternatively, the photo may have

been taken under nonstandard lighting conditions beyond the compensating range of the Camera Raw plug-in.

To render non-neutral colors differently, use the Hue and Saturation controls in the Calibrate tab to adjust the

settings for the profile built into Camera Raw. You can also specify whether to use the profiles built into Camera Raw

or a profile built into the file itself.

1 In the Calibrate tab, choose a profile from the Camera Profile menu.

Important: The options in the Camera Profile menu vary, depending on whether the file has a profile embedded and

whether a newer version of the profile has become available in Camera Raw.

ACR 2.4, 3.0, or higher Higher version numbers represent newer and improved camera profiles for some cameras. If

you only see a lower version number, such as 2.4, your camera’s profiles didn’t require updating. If multiple options

are available, you may want to choose a lower version number for consistent behavior with legacy images.

Embedded Use the profile embedded in the current file. TIFF, JPEG, and DNG files can have embedded profiles.

2 Adjust the Shadow Tint property to remove a color cast in the shadows. Usually, decreasing Shadow Tint adds

green to the shadow areas, and increasing Shadow Tint adds magenta.

3 UsetheHueandSaturationcontrolstoadjustthered,green,andblueintheimage.Lookatthepreviewimageas

you make adjustments until the image looks correct to you. In general, adjust the hue first, and then adjust its

saturation.

4 Adjustments made in the Calibrate tab affect the selected image in the Camera Raw dialog box. If you want to save

the adjustments and make them the default image settings for the files from a specific camera, choose Save New

Camera Raw Defaults from the Camera Raw Settings menu .

Note: To save settings as defaults for a specific camera (by serial number) or for a specific lighting condition (by ISO

number), you can also modify the Default Image Settings preferences in the Camera Raw preferences. (See “Save, reset,

and load Camera Raw settings” on page 103.)

Compensate for chromatic aberration in Camera Raw

Chromatic aberration is a common defect caused by the failure of the lens to focus different frequencies (colors) to

the same spot. In one type of chromatic aberration, the image from each color of light is in focus, but each image is

a slightly different size. This type of aberration is seen as a complementary color fringing in areas away from the

center of the image. For example, you may see a red fringe on the side of an object toward the center of the image,

and cyan fringe on the side of the object away from the center of the image.

Original image (top), and after fixing chromatic aberration (bottom)

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Adobe Photoshop CS3 Manual de usuario Pagina 106

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