Gamma Curve Settings - Canon IMAGE FORMULA DR-3010C User Manual

Gamma Curve Settings

This section describes the procedure for adjusting the gamma level for scanning
documents.
Click the [Brightness] tab in the Properties for Canon DR-3010C dialog box
→ click [Gamma] → click [OK].
Select the [Custom] check box in the Gamma Settings dialog box →
specify the settings as necessary → click [OK] → [OK].
NOTE
•
When the [Custom] check box in the Gamma Settings dialog box is selected, all
settings in the [Brightness] tab are set automatically.
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•
The settings you can specify are as follows:
- Select
Select the side and color for the custom setting.
The color bar and color of the sample image are changed to show the
specified color.
- Input method
Select the setting method for gamma correction.
- [Factor]
Move the slider to the left or right to adjust the gamma correction factor
between 0.2 and 5.0.
The gamma correction value, Gamma Curve Graph, and sample image color
are interlinked.
Clicking a point in the Gamma Curve Graph with your mouse changes the
gamma curve and color of the sample image to match that point.
You can also move the gamma curve by dragging it with the mouse.
- [Freehand]
The output value for a particular input value in the gamma table can be specified
with the mouse.
Click any point in the Gamma Curve Graph to set that point as an output
value.
Drag the mouse on the Gamma Curve Graph to set the output value
according to the mouse movement.
- [Import]
Clicking this button loads gamma table data (*.pxg file) that was previously
stored with the Export button.
Imported gamma data is reflected in the Gamma Curve Graph.
- [Export]
Clicking this button exports the custom gamma curve settings as a gamma
table file (*.pxg).
DR-3010C
DR-3010C