3.4

Chapter 16 Making Image Adjustments 361
Using the Curves Controls for Color Correction
One of the most powerful ways to remove a color cast from an image or accentuate a desirable
color cast is to adjust the tonal curves of the red, green, and blue color channels independently.
It’s important to understand that you’re adjusting the colors of the image within the RGB
spectrum; therefore, you reduce yellow when you increase blue, you reduce magenta when you
increase green, and so on.
To adjust the tonal curve of a single color channel in an image
1 In the Curves area of the Adjustments inspector or the Adjustments pane of the Inspector HUD,
choose a single color channel from the Channel pop-up menu.
Choose a color channel from
the Channel pop-up menu.
2 Place points on the curve, and adjust them as necessary, to remove or accentuate a color cast in
the image.
For more information about placing points on the tonal curve, see Adjusting the Tonal Curve of
an Image Using the Curves Controls on page 353.