Canon multipass c5500 ユーザーズマニュアル
6-16
Scanning With the MultiPASS C5500
Chapter 6
Changing Gamma Curve Values
With the Gamma curve, you can change the mid-tones of the image to
increase its contrast, and enhance the overall image. When you increase
the Gamma value, light areas are made lighter and dark areas are made
darker.
increase its contrast, and enhance the overall image. When you increase
the Gamma value, light areas are made lighter and dark areas are made
darker.
For example, if you are scanning a photograph that has many dark
tones, simply adjusting the brightness and contrast may not improve the
image as effectively as adjusting the Gamma value.
tones, simply adjusting the brightness and contrast may not improve the
image as effectively as adjusting the Gamma value.
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.
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.