Справочник Пользователя для Adobe photoshop cs2
300
ADOBE PHOTOSHOP CS2
User Guide
To adjust the shadows and highlights in an image
1
Choose Image > Adjustments > Shadow/Highlight.
Make sure the Preview option is selected in the dialog box if you want the image to be updated as you make adjust
ments.
ments.
2
Adjust the amount of lighting correction by moving the Amount slider or entering a value in the Shadows or
Highlights percentage text box. Larger values provide either greater lightening of shadows or greater darkening of
highlights. You can adjust both Shadows and Highlights in an image.
highlights. You can adjust both Shadows and Highlights in an image.
3
For finer control, select Show More Options to make the additional adjustments.
4
(Optional) Click the Save As Defaults button to save your current settings and make them the default settings for
the Shadow/Highlights command. To restore the original default settings, hold down the Shift key while clicking the
Save As Defaults button.
Save As Defaults button.
Note: You can reuse Shadow/Highlight settings by clicking the Save button to save the current settings to a file and later
using the Load button to reload them. For more information on saving and loading settings, see “To save and reapply
settings in a dialog box” on page 282.
using the Load button to reload them. For more information on saving and loading settings, see “To save and reapply
settings in a dialog box” on page 282.
5
Click OK.
Shadow/Highlight command options
Tonal Width
Controls the range of tones in the shadows or highlights that are modified. Smaller values restrict the
adjustments to the darker regions for shadow correction and the lighter regions for highlight correction. Larger
values increase the range of tones that will be adjusted further into the midtones. For example, at 100% the shadow
tonal width slider affects the shadows the most, the midtones are partially affected, but the brightest highlights are
not affected. Tonal width varies from image to image. Too large a value may introduce halos around very dark or very
light edges. The default settings attempt to reduce these artifacts. Halos may also occur when the Shadow or
Highlight Amount values are too large.
values increase the range of tones that will be adjusted further into the midtones. For example, at 100% the shadow
tonal width slider affects the shadows the most, the midtones are partially affected, but the brightest highlights are
not affected. Tonal width varies from image to image. Too large a value may introduce halos around very dark or very
light edges. The default settings attempt to reduce these artifacts. Halos may also occur when the Shadow or
Highlight Amount values are too large.
Tonal Width is set to 50% by default. If you find that you are trying to lighten a dark subject but the midtones or
lighter regions are changing too much, try reducing Shadow Tone Width towards zero so that only the darkest regions
lighter regions are changing too much, try reducing Shadow Tone Width towards zero so that only the darkest regions
are lightened. If, however, you need to brighten the midtones as well as the shadows, increase Shadows Tonal Width
toward 100%.
toward 100%.
Radius
Controls the size of the local neighborhood around each pixel. Neighboring pixels are used to determine
whether a pixel is in the shadows or highlights. Moving the slider to the left specifies a smaller area, and moving it
to the right specifies a larger area. The optimum local neighborhood size depends on the image. It’s best to exper
iment with the adjustment. If the radius is too large, the adjustment tends to brighten (or darken) the whole image
rather than brightening the subject only. It’s best to set the radius to roughly the size of the subjects of interest in the
image. Experiment with different Radius settings to obtain the best balance between subject contrast and differential
brightening (or darkening) of the subject compared to the background.
to the right specifies a larger area. The optimum local neighborhood size depends on the image. It’s best to exper
iment with the adjustment. If the radius is too large, the adjustment tends to brighten (or darken) the whole image
rather than brightening the subject only. It’s best to set the radius to roughly the size of the subjects of interest in the
image. Experiment with different Radius settings to obtain the best balance between subject contrast and differential
brightening (or darkening) of the subject compared to the background.
Color Correction
Allows fine-tuning of the colors in regions of the image that have changed. This adjustment is
available only in color images. For example, by increasing the setting of the Shadows Amount slider, you bring out
colors that were dark in the original image. You may want these colors to be more vivid or less vivid. Adjust the Color
Correction slider to achieve the best results. In general, increasing the values tends to produce colors that are more
saturated, and decreasing the values produces colors that are less saturated.
colors that were dark in the original image. You may want these colors to be more vivid or less vivid. Adjust the Color
Correction slider to achieve the best results. In general, increasing the values tends to produce colors that are more
saturated, and decreasing the values produces colors that are less saturated.