Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 521

AFTER EFFECTS CS3 515
User Guide
This effect works with 8-bpc and 16-bpc color.
Original (left), and with effect applied (right)
See also
"Emboss effect" on page 515
Emboss effect
The Emboss effect sharpens the edges of objects in an image and suppresses colors. The effect also highlights the
edges from a specified angle. The layer's quality setting influences the Emboss effect by controlling the Relief setting.
Relief is calculated at the subpixel level in Best quality and rounded off to the pixel level in Draft quality.
This effect works with 8-bpc and 16-bpc color.
Original (left), and with effect applied (right)
The direction from which the highlight source shines.
Direction
The apparent height of the embossing, in pixels. The Relief setting actually controls the maximum width of
Relief
highlighted edges.
Determines the sharpness of the image.
Contrast
The effect's transparency. The result of the effect is blended with the original image, with the
Blend With Original
effect result composited on top. The higher you set this value, the less the effect affects the clip. For example, if you
set this value to 100%, the effect has no visible result on the clip; if you set this value to 0%, the original image doesn't
show through.
Find Edges effect
The Find Edges effect identifies the areas of an image that have significant transitions and emphasizes the edges.
Edges can appear as dark lines against a white background or colored lines against a black background. If the Find
Edges effect is applied, images often look like sketches or photographic negatives of the original.
Inverts the image after the edges are found. If Invert isn't selected, edges appear as dark lines on a white
Invert
background. If selected, edges appear as bright lines on a black background.
This effect works with 8-bpc color.