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Table Of Contents
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Chapter 12 AFX PlugIns
YIQ Channels (NTSC Color Space)
Many effects also allow you to apply effects in the NTSC standard chrominance and luminance color
space known as YIQ. The YIQ channels are as follows:
Luminance -
represents the luminance channel, designated by the letter Y.
Chrominance -
represents the chroma channels, designated by I and Q.
In Phase Chrominance -
represents the in-phase chrominance channel, which is designated by the letter I.
Quadrature Chrominance -
represents the quadrature chrominance channel, which is designated by the letter Q.
Preview Alpha Only
Many of our AFX PlugIns include a Preview Alpha Only check box that lets you see the alpha channel
more clearly by replacing the RGB channels of the image with white. This has the same effect as viewing
the alpha channel in the effect windows, but provides a convenient toggle. Note that this shows only the
current layers alpha channel as produced by the effect. Successive effects and layers may obscure the
alpha channel preview.