Adjusting Image Quality Page 52
Using the Tone Curve Sliders
The sliders at the bottom of the dialog box provide an easy way to adjust
the tone curve.
Each slider has a value of 0 at the middle setting. Moving to the right
increases the value; moving to the left gives a negative value (–1, –2,
etc.). You can also adjust the value by typing in a positive or negative
number in the numeric value field next to each slider.
Adjust one or more of the following sliders:
Contrast Controls the highlights and shadows of the tone
curve without affecting the midtones.
Brightness Adjusts the overall lightness or darkness of the
image. Move the slider bar to the right to increase
brightness or to the left to decrease brightness.
Highlights Controls only the points on the right of the tone
curve. Use this slider when you want to adjust
highlights without affecting the shadows.
numeric
value
fields
sliders
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