Adobe Fireworks CS3 用户手册
ADOBE FIREWORKS CS3
User Guide
75
Curves dialog box
3
In the Channel pop-up menu, select whether you want to apply changes to individual color channels or to all
colors.
4
Click a point on the grid’s diagonal line and drag it to a new position to adjust the curve.
•
Each point on the curve has its own Input and Output values. When you drag a point, the Input and Output values
update automatically.
update automatically.
•
The curve displays brightness values of 0 to 255, with 0 representing the shadows.
Curve after dragging a point to adjust
You can also adjust highlights, midtones, and shadows automatically by clicking the Auto button in the Curves
dialog box.
dialog box.
To delete a point along the curve:
❖
Drag the point off the grid.
Note: You cannot delete the end points of the curve.
Correcting the tonal range using tonal eyedroppers
You can adjust the highlights, shadows, and midtones using the Shadow, Highlight, or Midtone eyedropper in the
Levels or Curves dialog box.
Levels or Curves dialog box.
To adjust the tonal balance manually using the tonal eyedroppers:
1
Open the Levels or Curves dialog box, and select a color channel from the Channel pop-up menu.