
6-20 Scanning
Chapter 6
To adjust the gamma value of an image:
1. On the Tone tab, click the Gamma button.
2. Move the Gamma slider to the left to decrease the mid-tone intensity,
and to the right to increase the mid-tone intensity, until the desired
effect is achieved. You can also type a value into the text box.
3. To return to the original Gamma curve setting, click Reset.
Adjusting Histogram Tone Levels
You can use a histogram tool to adjust the tone shadow for the preview
image.