A-61506 September 2006
15
Using a previously
captured image as a
starting point
IMPORTANT: You must use an uncorrected image as your starting
point for any activity which will result in the creation of a
custom color table. If you do not choose an uncorrected
image the following message will be displayed,
The
origin of this image cannot be determined from the
file! It may not have been originally scanned with
NULL color tables, and is therefore not a valid image
for use in this application.
1. Open the Brightness and Contrast Control application. The
Brightness and Contrast Control main window will be displayed.
2. Select
File>Open Image.
The Open Image File dialog box will be
displayed.
3. Select the desired image file and click
Open
. The selected image
will be displayed on both sides of the main window.
4. Select
Tools>Brightness and Contrast
. The Brightness and
Contrast dialog box will be displayed.
5. Adjust the Brightness and Contrast slider bars until you are satisfied
with the color image quality of the image that is displayed on the
right side of the main window. As you move the Brightness and
Contrast slider bars, the changes in the brightness and contrast will
be visible on the right side of the window when you release the
mouse button. Optionally, you may enter a value in the Brightness
or Contrast fields. Acceptable values are: -50 to +50.
