Operation Manual

IMAGE CORRECTION – TONE CURVE

Changing the shape of a correction curve changes the output brightness level for each

corresponding input brightness 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 to draw a correction curve freehand.

Click on to smooth out the final correction

curve.

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 Tone Curves

Pull down to

decrease the

output level.

Pull up to

increase the

output level.

Anchor Point

Clicking on draws a

smooth curve based on

the intersect

ion of the

corrected curve through

seven

input brightness

values (31, 63, 95, 127,

159, 191, 223, and 255).