Xerox CX250 用户手册

Color Tools

133

Editing Gradation Tables

When you open the Gradation Tool window, the default gradation table, 

, is selected in the Gradation Table list, and is displayed in the 

graph. This table serves as a baseline and consists of a 45° gradation curve, 
with Brightness and Contrast set to 

, and Contrast Center set to 

. All of 

the color separations are selected.

Gradation tables that you create also appear in the 

 list. 

When you select a gradation table, the predefined settings are immediately 
applied to the processed job that you are working with.

The separations buttons enable you to select one, all, or any combination 
of separations to edit for a specific gradation table. Selecting a specific 
separation enables you to change the color balance for a specific tonal 
range.

When you open the Gradations Tool window, all of the separations are 
selected.

1.

Click the 

button 

 to edit all the separations 

simultaneously.

2.

Click the individual separations you wish to edit—for example, select 
the cyan separation only.

3.

Click the curve in the graph to add a point, and then drag the point to 
modify the separation. When you select a point, its value appears in 
the 

 or 

 boxes.

The 

 axis represents the tone values of the image before gradation 

changes. The 

 axis represents the tone values of the image after 

gradation changes.

4.

To view gradation changes in your job, click 

. Changes are 

automatically applied to the displayed image in the 

 view.

5.

To remove a point on the curve, select the point and then click 

.

6.

To reset the gradation curve to a 45° curve, click the 

 button 

.

7.

To revert to the original gradation settings, click 

.