Adobe PHOTOSHOP ELEMENTS 2 User Manual page 67

2 Do one of the following:
Choose Enhance > Auto Levels.
•
Choose Enhance > Adjust Brightness/
•
Contrast > Levels. In the Levels dialog box,
click Auto, and then click OK.
Using the Auto Contrast command
The Auto Contrast command adjusts the overall
contrast and mixture of colors in an image
automatically. Because it does not adjust each
color channel (red, green, and blue) individually,
Auto Contrast does not introduce or remove color
casts. It maps the lightest and darkest pixels in the
image to white and black, which makes highlights
appear lighter and shadows appear darker.
Auto Contrast can improve the appearance of
many photographic or continuous-tone images.
It does not improve flat-color images.
To use the Auto Contrast command:
Do one of the following:
1
To make adjustments to your entire image,
•
choose Select > Deselect to make sure nothing is
selected. If your image has multiple layers, select
a layer to adjust in the Layers palette.
To make adjustments to a portion of your
•
image, make a selection in the document
window. See "Selecting pixels" on page 114.
Choose Enhance > Auto Contrast.
2
ADOBE PHOTOSHOP ELEMENTS 2.0
Using the Auto Color Correction
command
The Auto Color Correction command adjusts the
contrast and color by identifying shadows,
midtones, and highlights in the image as a whole,
rather than in individual color channels. It
neutralizes the midtones and clips the white and
black pixels using a default set of values.
To apply Auto Color Correction command:
Do one of the following:
1
• To make adjustments to your entire image,
choose Select > Deselect to make sure nothing is
selected. If your image has multiple layers, select
a layer to adjust in the Layers palette.
To make adjustments to a portion of your
•
image, make a selection in the document
window. See "Selecting pixels" on page 114.
Choose Enhance > Auto Color Correction.
2
Using the Adjust Backlighting command
When taking photos with a camera, you can use
backlighting to emphasize the shape of the subject.
However, backlighting can cause overexposure in
the areas surrounding the subject. You can use the
Adjust Backlighting command to correct this
problem by darkening the overexposed areas.
The Adjust Backlighting command is especially
useful for correcting overexposed skies, and other
backgrounds.
59
User Guide