Adobe Premiere Pro CS3 - Manual (Page 344)

ADOBE PREMIERE PRO CS3
User Guide
338
See also
“ About Luma Key ” on page 372
Non Red Key effect
The Non Red Key effect makes the clip’s nonred (blue or green) pixels transparent.
See also
“ About Non Red Key ” on page 372
RGB Difference Key effect
The RGB Difference Key effect creates transparency by removing pixels from a specified color or range of colors.
Select a key color by clicking the Color swatch or by dragging the eyedropper to a color in the Monitor window.
See also
“ About RGB Difference Key ” on page 371
Remove Matte effect
The Remove Matte effect removes color fringes from clips that are premultiplied with a color. It is useful when
combining alpha channels with fill textures from separate files. If you import footage with a premultiplied alpha
channel, or if you create alpha channels with After Effects, you may need to remove halos from an image. Halos are
caused by a large contrast between the image's color and the background, or matte, color. Removing or changing
the color of the matte can remove the halos.
Use Background Color to specify the new background color when you want to change the color of a matte.
Track Matte Key effect
(High bit-depth) The Track Matte Key effect creates transparent areas in a clip that correspond to the luminance
levels of another clip. Transparent areas reveal the image produced by clips in lower tracks. Exclude the matte clip
from the output by selecting the clip and choosing Clip
> Enable.
See also
“ Move or change the transparent area with Track Matte Key ” on page 375
“ Compositing clips ” on page 364
Noise & Grain effects
Dust & Scratches effect
The Dust & Scratches effect reduces noise and defects by changing dissimilar pixels within a specified radius to be
more like their neighboring pixels. To achieve a balance between sharpness of the image and hiding defects, try
various combinations of radius and threshold settings.
April 1, 2008