6-22 Scanning Chapter 6When you adjust the white-point, all tones in the image lighter than theselected white-point are adjusted to white.When you find a combination of tone settings you like, you can save thesettings in a file and use it in future scanning sessions.To adjust the tones using the Histogram tool:1. On the Tone tab, click the Histogram tool button.2. For the black-point, mid-point, or white-point, do one of thefollowing to make a change:• Click the appropriately labeled Eyedropper button. Then clickthe eyedropper on the portion of the image in the preview areathat is darkest (for black-point), lightest (for white-point), or inthe middle of the tonal range (for mid-point). Try zooming in onthe specific part of the image so you can be sure you are selectingthe shade you want.• In the appropriately labeled text box, enter a tone value.• Drag the appropriate arrow at the bottom of the histogram to thelevel you want.In the preview image, all tones are adjusted accordingly.3. To reset to the default values, click Reset.To save these settings to use on similar images, click Save. In theSave As dialog box, specify the file name and location where youwant to save the setting, and click Save.Using a Custom Histogram SettingUse the following steps to open a custom histogram setting that yousaved previously.1. On the Tone tab, click the Histogram tool button, and then clickLoad.
