4.2

the duration of the fade-in and fade-out effects.
Fade in opacity/Fade out opacity: Drag the sliders to set
the opacity of the clip’s video at the first and last frames.
(You can also double-click the values and type new
values.) A value of 0.0 sets the clip video to be completely
covered by the matte color; a value of 0.5 sets the clip to
be 50 percent covered by the matte color; and so on.
Fade color: Click the color well to set the fade-in and fade-
out color.
Gamma Correction: Controls the range of brightness in an
image. This effect can be used to remove detail from an
underexposed clip or to reduce the saturation of an
overexposed clip. Drag the slider to set gamma values
between 0.1 and 4.0. (You can also double-click the value and
type a new value.)
Note: Computers using different operating systems have
different monitor settings. For cross-platform viewing,
correcting the gamma will improve the image for all platforms.
Noise Removal: Reduces random flecks of noise in the video
file, including noise introduced by codecs. This effect allows
you to blur areas of low contrast while leaving high-contrast
edges sharp, creating results that are imperceptible to the
human eye but that improve the final compression of the
transcoded file. The effect’s properties include:
Apply to: Use this pop-up menu to set the channels from
which noise is filtered. Choose “All channels” to filter noise
from all channels including the alpha channel. Choose
“Chroma channels” to filter noise from the two chroma
channels (U and V) in the YUV color space.
Iterations: Choose the number of noise-smoothing passes