Chapter 14 • More Effects; Tint Effect; The "Thin Man" Effect; Luminance Key - Videonics MX-1 Instruction Manual

VIDEONICS DIGITAL VIDEO MIXER
Chapter 14 • Chapter 14 •
Some of the Mixer's transitions also act as effects. When set part
way, they alter the picture in useful ways. You can also create color
or black references.

Tint Effect

You can use the background color capability to tint a picture. To do this,
set up a dissolve (effect 1) from the desired source to COLOR. Define the
background color to be the desired tint. Use the Take Bar to manually
perform the transition.
The dissolve will begin with normal, untinted video. As you move the
Take Bar, the coloration will increase. At the end of the effect, the screen will
be pure color with no video at all. Adjust the bar for the desired amount of
color tint and record the result.

The "Thin Man" Effect

You can make a video image thinner or wider than normal. When applied
slightly, this effect can make everyone in the picture look a bit thinner (or
heavier, if you want to make enemies) than they do in real life.
To accomplish this, set the background color to black and choose COLOR
as the CURRENT source. Choose effect 41 (Horizontal Curtain Expand) and
use the Take Bar. The video will start very thin and expand to a normal full-
screen image at the end. Adjust the bar for the desired amount of "video
weight loss."
To make the video wider, use the same technique with effect 81.

Luminance Key

Luminance key is similar to chroma key in that certain parts of the picture
are replaced by a second picture. But in luminance key, the replacement is
gradual and is based on the lightness of the original picture, rather than its
color. Example: You could make a video ghost story in which luminance key
is used to make the ghost transparent.
Let's call the original picture A and the second picture B. In luminance
key, the lightest portions of A are replaced by B. The darkest portions of A are
unchanged. Portions between black and white are a mix, with more of the
original A in the darker areas, more B in the lighter areas.
Performing a Luminance Key
Effects number 237 and 238 are luminance keys. Effect 28 (one of the "Top
30 effects") is the same as effect 237.
More Effects
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