Konica Minolta bizhub PRO C6500P - Manual (Page 168)

160 Chapter 7—Color Workflow
Brightness
The Brightness slider increases or decreases the luminance of the
image. Increasing brightness brightens the image and results in a
concave curve. Decreasing brightness darkens the image and
results in a convex curve.
¾ Move the Brightness slider to the right to increase brightness or
to the left to decrease brightness.
Contrast
The Contrast slider increases the image contrast by making the
highlights lighter and the shadows darker. It can also be used to
decreases the contrast.
¾ Move the Contrast slider to the right to increase contrast (S
shaped curve), or to the left to decrease contrast (inverted S
shaped curve).
Contrast Center
The Contrast Center slider increases the image contrast mainly in
the midtones. Using Contrast Center, you can adjust where the
contrast is increased. To enhance contrast in highlights, the
Contrast Center is shifted toward the highlights. To enhance
contrast in shadows, the Contrast Center is shifted toward the
shadows.
¾ Set the Contrast Center slider to the right to enhance contrast in
highlights, or to the left to enhance contrast in shadows.
Your change affects the gradation graph by moving the point
where the curve changes from convex to concave.
Note: Contrast Center only affects the image if Contrast has also been
adjusted.