Adjusting Hue, Saturation, and Lightness (HSL)

The HSL dialog box adjusts the hue, saturation and lightness values for every pixel in the image.  A value of 0 is the normal image value of a pixel for each of the HSL components.

To adjust the HSL values of an image:

  1. Do one of the following:

  2. In the dialog box, adjust the Hue, Saturation and Lightness options.

  3. Click the Proof button to view a preview in the Main Display area.  Change the setting as you like.

  4. Click OK.

Hue

FotoCanvas analyzes the image and selects the predominate color as the 0 value for the hue.  You can Adjust the value between -50 and 50 to change the color of the image.

Saturation

The pixel colors of the image are all given a value of 0 for saturation. The intensity of each color in the image is increased as the saturation value approaches 100.  The color intensity is decreased as the value approaches -100. At a value of -100 the image is grayscale.

Lightness

FotoCanvas increases the value of each pixel's light value. Increasing the value adds light to the image whereas decreasing the value subtracts light.  At a value of 100 the image is all white, and at -100 the image is all black.