3.13
3 Scanning
Operation:
1. Click on the Tonal Map icon in the Preview window or the Tonal Map tab in
the Enhancement dialog box. The Tonal Map dialog box will appear.
2. Click on the Tonal Map curve, an indicator appears which can then be
dragged to change the shape of the curve.
a) If a previously saved Tonal Map is desired, select the Loadbutton. An
Open dialog box appears for you to open the desired file.
b) Or, click on the Resetbutton to return the Tonal Map to the default
diagonal as in the original.
c) Click the Save button to save the changes as a customized setting. ASave
As dialog box will appear upon selection of this button. Enter the name
for the customized curve and click on the OK button.
3. Select the Histogram button to see a histogram of the changes made.
4. Select the OK button to accept all the changes or the Cancel button to
abandon all unsaved changes.
If the curve is changed into a concave shape below the original diagonal, the
enhanced image will be darker than the original.
Normal Image Darkened Image
Scanning