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Chapter 20 — Adjust Menu | Color > LCH 193
Color Lightness
The Color Lightness channel enables you to control the brightness of colors in the image without
affecting chroma or hue. You can use this channel to target and brighten specific colors, such as lightening
a person’s skin tone, or darkening the sky of a landscape without affecting other objects.
The Color Lightness channel provides you with the following controls:
q Hue Map
The hue map represents the full spectrum of colors on the horizontal axis, with the
brightness of the colors on the vertical axis. A color lightness curve, superimposed
on the hue map, can be used to isolate and adjust the lightness of individual colors.
Clicking on the curve will create an anchor point. Moving that anchor point
upward makes colors in the affected portion of the color range brighter. Taking
that same anchor point and moving it downward makes the affected colors darker.
Using the width slider increases or decreases the range of similar colors affected by
the color identified with the anchor point.
Anchor points can be removed by simply clicking and dragging the anchor point
off of the hue map or by clicking on an anchor point to select it and pressing the
delete key.
Shortcut
(while a LCH step is active):
Ctrl + 1 (Windows)
command + 1 (Macintosh)
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