Typically, an image is scanned at 200 or 400 dpi and displayed at 100 dpi. This means an image must be scaled down for display, discarding some of the saved pixels. The viewer must scale the image to display it at the lower screen resolution. You can adjust the scaling formula to produce a lighter or darker image.
Choose one of the following from the Image menu:
Normal |
Displays the image using the usual display algorithm. |
Darker |
Favors the dark pixel. For example, if the viewer shows only one for every two pixels, when one pixel is dark and one is light, the viewer displays the dark.
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Lighter |
Favors the light pixel. For example, if the viewer shows only one for every two pixels, when one pixel is dark and one is light, the viewer displays the light.
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Enhance |
Determines the shade of gray that represents the combination of pixels. For example, if the viewer shows only one for every four pixels, when one is light and the other three are dark, the viewer displays a dark gray.
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Brightness settings have no effect unless an image is scaled below 100%.