Adobe Premiere Elements 8 - Manual (Page 178)

173 USING ADOBE PREMIERE ELEMENTS 8 EDITOR
Applying effects
Last updated 8/12/2010
Shadow/Highlight
Use the Shadow/Highlight effect to brighten shadowed subjects in a clip or to reduce the highlights. This effect does
not apply a global darkening or lightening of a clip, but rather it adjusts the shadows and highlights independently,
based on the surrounding pixels. You can also adjust the overall contrast of a clip. The default settings are optimized
to fix clips with backlighting problems.
Auto Amounts Specifies that Adobe Premiere Elements automatically analyzes and corrects highlight and shadow
problems stemming from backlighting issues. This option is selected by default. Deselect it to activate manual controls
for shadow and highlight correction.
Shadow Amount Lightens the shadows in the clip. This control is active only if you deselect Auto Amounts.
Highlight Amount Darkens the highlights in the clip. This control is active only if you deselect Auto Amounts.
Temporal Smoothing Specifies the range of adjacent frames that Adobe Premiere Elements analyzes in order to
determine the amount of correction needed for each frame, relative to its surrounding frames. For example, if you set
Temporal Smoothing to 1 second, the frames are analyzed 1 second before the displayed frame to determine
appropriate shadow and highlight adjustments. If you set Temporal Smoothing to 0, each frame is analyzed
independently, without regard for surrounding frames. Temporal Smoothing can result in smoother-looking
corrections over time. This control is active only if you select Auto Amounts.
Scene Detect Specifies that scene changes are ignored when you have enabled Temporal Smoothing.
Blend With Original Specifies the percentage of the effect to apply to the clip.
Expand the More Options category to reveal the following controls:
Shadow Tonal Width and Highlight Tonal Width Specify the range of adjustable tones in the shadows and highlights.
Lower values restrict the adjustable range to only the darkest and lightest regions, respectively. Higher values expand
the adjustable range. These controls are useful for isolating regions to adjust. For example, to lighten a dark area
without affecting the midtones, set a low Shadow Tonal Width value so that when you adjust the Shadow Amount, you
are lightening only the darkest areas of a clip.
Shadow Radius and Highlight Radius Specify the size (in pixels) of the area around a pixel that the effect uses to
determine whether the pixel resides in a shadow or a highlight. Generally, this value should roughly equal the size of
the subject of interest in your footage.
Color Correction Specifies the degree of color correction that the effect applies to the adjusted shadows and highlights.
The higher the value, the more saturated the colors become. The more significant the correction that you make to the
shadows and highlights, the greater the range of color correction available.
If you want to change the color over the whole clip, use the Hue/Saturation effect after applying the Shadow/Highlight
effect.
Midtone Contrast Specifies the degree of contrast that the effect applies to the midtones. Higher values increase the
contrast in the midtones alone, while concurrently darkening the shadows and lightening the highlights.
Black Clip and White Clip Specify how much the effect clips the shadows and highlights to the new extreme shadow
(level 0) and highlight (level 255) colors in the clip. Larger values produce greater contrast.
Blur and sharpen
Antialias
The Antialias effect blends the edges between areas of highly contrasting colors. When blended, colors create
intermediate shades that make transitions between dark and light areas appear more gradual.