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146 Chapter 15 — Edit List | Adjust Section
t Opacity Mixer
The opacity mixer provides you with the ability to blend the
current enhancement with the rest of the image.
The opacity mixer becomes available as soon as you add
any features from the Adjust or Filter menus, or a color,
black, neutral, or white control point to the image. Click on
the Opacity show/hide triangle of the adjustment step to
display the opacity mixer controls.
The opacity mixer provides you with the following control:
Channels
The channels pull-down menu enables you to select the channels against which you control the opacity
of the current enhancement. Each option within this pull-down menu provides you with different sliders
with which to control the opacity of the current enhancement. Choose from the following options:
❏ All
The All option applies the current enhancement to all of the channels of the image. You are provided
with the following sliders to control the effect on the image:
•Opacity
Use this slider to control the entire opacity of the current effect. Move the slider to the left to reduce
the opacity of the effect.
❏ Luminance & Chrominance
The Luminance & Chrominance option enables you to control the current effect on either the
luminance (lightness) or chrominance (color) portions of your image. You are provided with the
following sliders to control the effect on the image:
• Opacity (Luminance Channel)
Use this slider to control the current effect on the luminance portion of the image. Move this slider to
the left to reduce the current effect on the luminance aspect of the image. This can be done to ensure
that the current enhancement is being applied only to the color aspects of the image.
• Opacity (Chrominance Ch.)
Use this slider to control the current effect on the chrominance portion of the image. Move this slider
to the left to reduce the current effect on the chrominance aspect of the image. Reduce this slider to
0% to apply the current enhancement to the luminance portions of the image only so that no effects
to the color portions are being made.
❏ RGB
Selecting this option from the channels pull-down menu provides you with the ability to control the
current enhancement’s effect on the red, green, and blue channels separately using the following
sliders:
•Opacity (Red Channel)
This slider controls the current effect on the red channel of the image. You can move this slider to the
left to prevent the current effect from being applied to the red channel, or you can reduce the other
two sliders to ensure the current effect is being applied to the red channel only.