Adobe After Effects CS3 Manual do Utilizador Página 408

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AFTER EFFECTS CS3
User Guide
403
may want these colors to be more vivid. The higher the Color Correction value, the more saturated these colors
become. The more significant the correction that you make to the shadows and highlights, the greater the range of
color correction available.
Note: If you want to change the color over the whole image, use the Hue/Saturation effect after applying the
Shadow/Highlight effect.
Midtone Contrast Theamountofcontrastthattheeffectappliestothemidtones.Highervaluesincreasethecontrast
in the midtones alone, while concurrently darkening the shadows and lightening the highlights. A negative value
reduces contrast.
Black Clip, White Clip How much of the shadows and highlights are clipped to the new extreme shadow and
highlight colors in the image. Note that setting the clipping values too high reduces detail in the shadows or
highlights. A value between 0.0% and 1% is recommended. By default, shadow and highlight pixels are clipped by
0.1%—that is, the first 0.1% of either extreme is ignored when identifying the darkest and lightest pixels in the image,
which are then mapped to output black and output white. This method ensures that input black and input white
values are based on representative rather than extreme pixel values.
Tint effect
The Tint effect tints a layer by replacing each pixels color values with a value between the colors specified by Map
Black To and Map White To. Pixels with luminance values between black and white are assigned intermediate values.
Amount To Tint specifies the intensity of the effect.
For more complex tinting, use the Colorama effect.
This effect works with 8-bpc, 16-bpc, and 32-bpc color.
Original (left), and with effect applied (right)
See also
Colorama effect” on page 393
Tritone effect
The Tritone effect alters a layer’s color information by mapping bright, dark, and midtone pixels to colors you select.
It’s like the Tint effect, except with midtone control.
This effect works with 8-bpc, 16-bpc, and 32-bpc color.
Blend With Original The effect’s transparency. The result of the effect is blended with the original image, with the
effect result composited on top. The higher you set this value, the less the effect affects the layer. For example, if you
set this value to 100%, the effect has no visible result on the layer; if you set this value to 0%, the original image doesn’t
show through.
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