Adobe 12040118 - After Effects Standard Tutorial page 398

Broadcast Locale The broadcast standard for your intended output. NTSC (National Television Standards Committee) is the North American
standard and is also used in Japan. PAL (Phase Alternating Line) is used in most of Western Europe and South America.
How To Make Color Safe How to reduce signal amplitude:
Reduce Luminance Reduces the brightness of a pixel by moving it toward black. This setting is the default.
Reduce Saturation Moves the color of a pixel toward a gray of similar brightness, making the pixel less colorful. For the same IRE level,
reducing saturation alters the image more noticeably than does reducing luminance.
Maximum Signal Amplitude (IRE) The maximum amplitude of the signal in IRE units. A pixel with a magnitude above this value is altered. The
default is 110. Lower values affect the image more noticeably; higher values are more risky.
Change Color effect
The Change Color effect adjusts the hue, lightness, and saturation of a range of colors.
This effect works with 8-bpc and 16-bpc color.
View Corrected Layer shows the results of the Change Color effect. Color Correction Mask shows a grayscale matte that indicates the areas of
the layer that will be changed. White areas in the color correction mask are changed the most, and dark areas are changed the least.
Hue Transform The amount, in degrees, to adjust hue.
Lightness Transform Positive values brighten the matched pixels; negative values darken them.
Saturation Transform Positive values increase saturation of matched pixels (moving toward pure color); negative values decrease saturation of
matched pixels (moving toward gray).
Color To Change The central color in the range to be changed.
Matching Tolerance How much colors can differ from Color To Change and still be matched.
Matching Softness The amount that the effect affects unmatched pixels, in proportion to their similarity to Color To Change.
Match Colors Determines the color space in which to compare colors to determine similarity. RGB compares colors in an RGB color space. Hue
compares the hues of colors, ignoring saturation and brightness—so bright red and light pink match, for example. Chroma uses the two
chrominance components to determine similarity, ignoring luminance (lightness).
Invert Color Correction Mask Inverts the mask that determines which colors to affect.
Change To Color effect
The Change To Color effect (formerly Change Color HLS effect) changes a color you select in an image to another color using hue, lightness, and
saturation (HLS) values, leaving other colors unaffected.
Change To Color offers flexibility and options unavailable in the Change Color effect. These options include tolerance sliders for hue, lightness,
and saturation for exact color matching, and the ability to select the exact RGB values of the target color that you want to change to.
Carl Larsen provides a video tutorial on the
fringes caused by chromatic aberration.
This effect works with 8-bpc and 16-bpc color.
Original image (upper-left), with saturation removed in the planet (lower-left), and with light green changed to yellow in the planet (lower-right)
From The center of the color range to change.
To The color to change matched pixels to.
To animate a color change, set keyframes or expressions for the To color.
Change Which channels the effect affects.
Change By How to change colors. Setting To Color performs a direct change of affected pixels to the target color. Transforming To Color
transforms affected pixel values toward the target color, using HLS interpolation; the amount of change for each pixel depends on how close the
color of the pixel is to the From color.
Creative COW website that demonstrates the use of the Change To Color effect to remove color
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