The Convert to Duotone filter

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You can use the Convert to Duotone filter to convert both color images and black-and-white images into duotones. Duotones increase the tonal range of a grayscale image by using different colors to reproduce different gray levels.

The Convert to Duotone filter

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To create a duotone in an image

  1. Select an image file.

  2. On the Window menu, click Image Editor.

  3. Click the Convert to Duotone filter.

  4. In the Convert to Duotone dialog box, select a light and dark color by clicking the respective color buttons.

  5. Adjust the brightness and contrast by using the sliders. Negative numbers reduce brightness and contrast.