Using the Color Balance command (Photoshop)
The Color Balance command changes the overall mixture of colors in an image for generalized color correction.
Original image with greenish cast, and magenta/green level adjusted in midtones
To use the Color Balance command:
- Make sure the composite channel is selected in the Channels palette. This command is available only when you're viewing the composite channel.
- Do one of the following:
- Choose Image > Adjustments > Color Balance.
- Choose Layer > New Adjustment Layer > Color Balance. Click OK in the New Layer dialog box.
- Select Shadows, Midtones, or Highlights to select the tonal range on which you want to focus the changes.
- Select Preserve Luminosity to prevent changing the luminosity values in the image while changing the color. This option maintains the tonal balance in the image.
- Drag a slider toward a color you want to increase in the image; drag a slider away from a color you want to decrease in the image.
The values above the color bars show the color changes for the red, green, and blue channels. (For Lab images, the values are for the a and b channels.) Values can range from -100 to +100.