Operation Manual

17
User Guide – IRIScan Executive 4
4.3 The Image Adjustment Tab
The Image Adjustment tab allows you to adjust the color quality of the image so that it comes close to
the original.
Note: it is recommended to select Document as Color Profile to obtain optimal colors.
 Gamma
Adjusts the midtones of the image without dramatically altering then lightest and the darkest areas.
When the value of gamma changes, the image changes accordingly.
Gamma Value: 1.0
Gamma Value: 1.4
Gamma Value: 2.0
 Brightness and Contrast
Brightness
Adjusts the lightness or darkness of an image. The higher the value, the
brighter the image. Drag the slider to the right or left to increase or decrease
the brightness. The range goes from -50 to +50. The default value is 0.
Contrast
Adjusts the range between the darkest and the lightest shades in the image.
The higher the contrast, the bigger the different grayscale. Drag the slider to the
right or left to increase or decrease the contrast. The range goes from -50 to
+50. The default value is 0.