Adobe 25520388 User Guide - Page 386

Color Key effect, Matte Cleanup, Spill Suppression, Color Correction

Page 386 highlights

USING ADOBE PREMIERE PRO 381 Effects and transitions Pedestal Filters out noise, often caused by grainy or low light footage, from the alpha channel. Values range from 0 through 100. The default value is 10. 0 does not affect the image. The higher the quality of your source image, the lower you can set Pedestal. Matte Cleanup Choke Shrinks the size of the alpha channel matte. Performs a morphological Erode (fractional kernel size). Choke Level Values range from 0 through 100. 100 represents a 9x9 kernel. 0 does not affect the image. The default value is 0. Soften Blurs the edge of the alpha channel matte. Performs a box blur filter (fractional kernel size). Blur Level values range from 0 through 100. 0 does not affect the image. The default value is 0. 1.0 represents a 9x9 kernel. Contrast Adjusts the contrast of the alpha channel. Values range from 0 through 100. 0 does not affect the image. The default value is 0. Mid Point Chooses the balance point for the contrast value. Values range from 0 through 100. 0 does not affect the image. The default value is 50. Spill Suppression Desaturate Controls the saturation of the color channel background color. Desaturates colors that are close to being fully transparent. Values range from 0 through 50. 0 does not affect the image, The default value is 25. Range Controls the amount of spill that is corrected. Values range from 0 through 100. 0 does not affect the image. The default value is 50. Spill Adjusts the amount of spill compensation. Values range from 0 through 100. 0 does not affect the image. The default value is 50. Luma Works with the alpha channel to restore the original luminance of the source. Values range from 0 through 100. 0 does not affect the image. The default value is 50. Color Correction Saturation Controls the saturation of the foreground source. Values range from 0 through 200. A setting of zero removes all chroma. The default value is 100. Hue Controls the hue. Values range from -180° to +180 °. The default value is 0°. Luminance Controls the luminance of the foreground source. Values range from 0 through 200. 0 is black. 100 is 4x. The default value is 100. Color Key effect The Color Key effect keys out all image pixels that are similar to a specified key color. This effect modifies only the alpha channel of a clip. Nonstandard blue screen (left) and background (center) are combined with Color Key effect (right). When you key out a color value in a clip, that color or range of colors becomes transparent for the entire clip. Control the range of transparent colors by adjusting the tolerance level. You can also feather the edges of the transparent area to create a smooth transition between the transparent and opaque areas. Last updated 1/16/2012

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381
USING ADOBE PREMIERE PRO
Effects and transitions
Last updated 1/16/2012
Pedestal
Filters out noise, often caused by grainy or low light footage, from the alpha channel. Values range from 0
through 100. The default value is 10. 0 does not affect the image. The higher the quality of your source image, the lower
you can set Pedestal.
Matte Cleanup
Choke
Shrinks the size of the alpha channel matte. Performs a morphological Erode (fractional kernel size). Choke
Level Values range from 0 through 100. 100 represents a 9x9 kernel. 0 does not affect the image. The default value is 0.
Soften
Blurs the edge of the alpha channel matte. Performs a box blur filter (fractional kernel size). Blur Level values
range from 0 through 100. 0 does not affect the image. The default value is 0. 1.0 represents a 9x9 kernel.
Contrast
Adjusts the contrast of the alpha channel. Values range from 0 through 100. 0 does not affect the image. The
default value is 0.
Mid Point
Chooses the balance point for the contrast value. Values range from 0 through 100. 0 does not affect the
image. The default value is 50.
Spill Suppression
Desaturate
Controls the saturation of the color channel background color. Desaturates colors that are close to being
fully transparent. Values range from 0 through 50. 0 does not affect the image, The default value is 25.
Range
Controls the amount of spill that is corrected. Values range from 0 through 100. 0 does not affect the image.
The default value is 50.
Spill
Adjusts the amount of spill compensation. Values range from 0 through 100. 0 does not affect the image. The
default value is 50.
Luma
Works with the alpha channel to restore the original luminance of the source. Values range from 0 through 100.
0 does not affect the image. The default value is 50.
Color Correction
Saturation
Controls the saturation of the foreground source. Values range from 0 through 200. A setting of zero
removes all chroma. The default value is 100.
Hue
Controls the hue. Values range from -180° to +180 °. The default value is 0°.
Luminance
Controls the luminance of the foreground source. Values range from 0 through 200. 0 is black. 100 is 4x.
The default value is 100.
Color Key effect
The Color Key effect keys out all image pixels that are similar to a specified key color. This effect modifies only the
alpha channel of a clip.
Nonstandard blue screen (left) and background (center) are combined with Color Key effect (right).
When you key out a color value in a clip, that color or range of colors becomes transparent for the entire clip. Control
the range of transparent colors by adjusting the tolerance level. You can also feather the edges of the transparent area
to create a smooth transition between the transparent and opaque areas.