Adobe 25520388 - Premiere Pro - PC Using Manual page 358

USING ADOBE PREMIERE PRO
Effects and transitions
Brightness & Contrast effect
The Brightness & Contrast effect adjusts the brightness and contrast of an entire clip. The default value of 0.0 indicates
that no change is made. Using the Brightness & Contrast effect is the easiest way to make simple adjustments to the
tonal range of the image. It adjusts all pixel values in the image at once—highlights, shadows, and midtones.
Andrew Devis from Creative Cow demonstrates
choice and provides an alternative option for better results.
Original (left) and with Brightness & Contrast effect applied (right)
Broadcast Colors effect
The Broadcast Colors effect alters pixel color values to keep signal amplitudes within the range allowed for broadcast
television.
Use the Key Out Unsafe and Key Out Safe settings for How To Make Color Safe to determine which portions of the
image are affected by the Broadcast Colors effect at the current settings.
The broadcast standard for your intended output. NTSC (National Television Standards
Broadcast Locale
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 reduce signal amplitude:
How To Make Color Safe
• Reduces a pixel's brightness by moving it toward black. This setting is the default.
Reduce Luminance
• Moves the pixel's color toward a gray of similar brightness, making the pixel less colorful. For
Reduce Saturation
the same IRE level, reducing saturation alters the image more noticeably than does reducing luminance.
Maximum Signal Amplitude (IRE)
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.
Corrected Layer shows the results of the Change Color effect. Color Correction Mask shows the areas of the layer
View
that will be changed. White areas in the color correction mask are changed the most, and dark areas are changed the
least.
The amount, in degrees, to adjust hue.
Hue Transform
Positive values brighten the matched pixels; negative values darken them.
Lightness Transform
Positive values increase saturation of matched pixels (moving toward pure color); negative
Saturation Transform
values decrease saturation of matched pixels (moving toward gray).
The central color in the range to be changed.
Color To Change
How much colors can differ from Color To Match and still be matched.
Matching Tolerance
The amount that unmatched pixels are affected by the effect, in proportion to their similarity to
Matching Softness
Color To Match.
in this video why the Brightness & Contrast effect may not be the best
The maximum amplitude of the signal in IRE units. A pixel with a magnitude above
Last updated 1/16/2012
353