Using the Image Controls

The image controls available when you click the Image Controls icon, , let you adjust the following options:

Exposure changes the intensity of light

Gamma determines the gradation between highlights and shadows

Highlight adjusts the lightest areas

Shadow adjusts the darkest areas

Sharpness adjusts the focus

Threshold adjusts the point at which the gray values change to either black or white. This option is available only when the Pixel Depth setting is Black & White and the Halftone setting is None in the Image Type dialog box. When Threshold is available, the other image control settings are not available.

Follow these steps to use the image controls:

1. From the advanced screen, click the Preview icon, , to display your image in the preview window.

rTip:

To scan only a portion of the image displayed in the preview window, define the area you want to scan and click the Zoom

Preview icon, , to display only that area. This makes your comparison previews larger and easier to see.

Using Special Effects 4-3