![]() See Auto Exposure for more information on using this feature. Be sure to use the Auto Exposure feature before making these settings. The Gamma, Highlight, and Shadow settings are overridden by the Auto Exposure feature. If Pixel Depth is set to Black & White and Halftone is set to None in the Image Type dialog box, all settings except Threshold are not available. The Image Controls settings are optimized automatically when you scan without previewing. The Image Controls button is unavailable when one or more marquees are selected in addition to the active marquee. The Image Controls settings are not available when TET (Text Enhancement Technology) is selected in the Image Type dialog box. This dialog box allows you to make a wide range of image adjustments, as described below. ![]() The Auto Exposure feature is automatically activated when scanning without previewing.Ĭlick the Image Controls button to open the Image Controls dialog box. Be sure to use Auto Exposure before making any of the these settings. ![]() The Auto Exposure feature overrides any Gamma, Highlight, or Shadow settings made in the Image Controls dialog box. The Auto Exposure feature is not available when the Pixel Depth is set to Black & White and AAS is not selected in the Image Type dialog box. For information on configuring the Auto Exposure feature, see Color menu. You can use the Configuration dialog box to set the Auto Exposure feature to work whenever you click the Preview button, modify the size of the previewed image with the zoom feature, make a marquee, or change the size or location of a marquee. This feature adjusts the Gamma, Highlight, and Shadow settings automatically. For further information on using these buttons to optimize scanning, see Recommended Adjustment Order.Ĭlick the Auto Exposure button to optimize the exposure for the entire image, or that the part of the image that is surrounded by an active marquee. All adjustments you make with these tools are shown in the previewed image. The Adjust buttons described in this section offer you a powerful means of improving image quality. Understanding EPSON TWAIN Pro Features / Using the Preview Window
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