Operation Manual

42
IMAGE CORRECTION – TONE CURVES
Click on to draw a correction curve freehand.
Click on to smooth out the final correction
curve.
Clicking on draws a
smooth curve based on the
intersection of the corrected
curve through seven input
brightness values (31, 63, 95,
127, 159, 191, 223, and 255).
Changing the shape of a correction curve changes the output level for each corresponding
input level. Changing the shape of the red, green, or blue curves affects colour balance of the
image. Changes to the RGB curve affect the image contrast and brightness.
1. Select the channel you want to adjust from the
colour channel drop down list.
2. Click on and drag the portion of the curve you
want to change.
• Changes are automatically applied to the preview
image.
Click on the curve to fix an anchor
point. Anchor points let you modify part
of the curve with little or no affect to the
remaining values.
Correcting the Curves
Pull down to
decrease the
output level.
Pull up to
increase the
output level.
Anchor Point