Microtek ScanMaker 5 User's Guide download pdf (Page 142)

6-64 Microtek ScanWizard 5

Using the Curve tool

1. Choose the channel in which the curve will be modified.

• Select All to modify gamma in the color channels of the image

simultaneously. Depending on the image type you select, the color

channels can be “All, R, G, B”.

• Select color channels individually (red, green, blue) to modify gamma in

that particular color channel.

• For grayscale scanners, only the gray channel is available.

2. Choose the Method in which the curve will be modified; select from “Line

or Curve” or Gamma. Note that “Line or Curve” and Gamma is exclusive to

each other.

There is no difference in the method you select, and the choices are

provided to give you more flexibility in adjusting the curve.

3. Choose a curve button; select from Pointer, Zoom Frame, or Hand. (See

previous section Using a curve button for more details.)

4. Click on the curve to define the points where the curve will be modified.

You can then either raise or lower the curve at that point and see changes to

the image accordingly.

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Microtek ScanMaker 5 User's Guide Page 142