Corel Painter Help | Using the curve to correct colors

Quick links to procedures on this page:

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Using the curve to correct colors

You can use the Curve method to drag the color curves to reshape them. This method lets you create very specific changes in color values.

You can control the overall effect by using the Effect slider. The slider controls how much of the curve moves in response to dragging. When the slider is all the way to the right, the entire curve moves. As the value is reduced, a smaller portion of the curve moves.

The Curve method lets you perform color and tonal corrections by adjusting either individual color channels (R, G, or B) or the master channel (all channels combined).

Curve method of color correction.

To quickly adjust colors, you can use the automatic correction controls.

To correct colors using the curve

Choose Effects

Tonal Control

Correct Colors.

In the Color Correction dialog box, choose Curve from the list box.

Click one of the following color buttons:

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Red — allows you to adjust only the red curve

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Green — allows you to adjust only the green curve

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Blue — allows you to adjust only the blue curve

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Master — allows you to adjust all color curves at once

Drag the Effect slider to the right to increase the range of the curve that’s affected when you drag it, or drag it to the left to decrease range.

Position the crosshair cursor over the diagonal line; when the crosshair cursor changes to a black arrowhead, drag the curve. Dragging the curve down increases shadows and dragging it up increases highlights.


You can also
Automatically correct the contrast and color in an image	Click Auto Set.
Automatically adjust the contrast in an image according to the white point	Click White Point.
Automatically adjust the contrast in an image according to the black point	Click Black Point.
Clear all corrections	Click Reset.

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