Canon MultiPASS L6000 Software Manual page 142

To create a custom tone curve:
1. In the Select Special Curve list, select Edit Custom Curve.
2. To add a handle to the tone curve, click on or near the curve.
3. To move a handle, drag the handle into a white area and release it.
4. To remove a handle, do one of the following:
5. To undo all changes that you have made to the curve, click Reset.
To save your custom curve, click Save. In the Save As dialog box,
enter a file name and directory, and click Save.
The curve is saved with the filename extension .CRV.
6-24 Scanning
Drag the handle outside the tone graph
Right-click your mouse pointer on the handle.
Chapter 6