Brother International DCP 7020 Software Users Manual - English - Page 95

Adjusting the Image, Brightness, Black & White, Gray Error Diffusion, True Gray, Contrast

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Using your machine with a Macintosh® Adjusting the Image Brightness Adjust the Brightness setting to get the best image. The Brother TWAIN Scanner driver offers 100 Brightness levels (-50 to 50). The default value is 0, representing an 'average' setting. You can set the Brightness level by dragging the slide bar to the right to lighten the image or to the left to 7 darken the image. You can also type a value in the box to set the level. Click OK. If the scanned image is too light, set a lower Brightness level and scan the image again. If the image is too dark, set a higher Brightness level and scan the image again. Note The Brightness setting is only available when Black & White or Gray (Error Diffusion) or True Gray is selected. Contrast You can only adjust the Contrast level when you have selected one of the Gray Scale settings, it is not available when you have selected Black & White as the selected Color Type. Increasing the Contrast level (by dragging the slide bar to the right) emphasizes dark and light areas of the image, while reducing the Contrast level (by dragging the slide bar to the left) reveals more detail in the gray areas. Instead of using the slide bar, you can type a value in the box to set the Contrast. Click OK. 7 - 18

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Using your machine with a Macintosh
®
7 - 18
7
Adjusting the Image
Brightness
Adjust the
Brightness
setting to get the best image. The Brother TWAIN Scanner driver offers 100
Brightness levels (-50 to 50). The default value is 0, representing an ‘average’ setting.
You can set the
Brightness
level by dragging the slide bar to the right to lighten the image or to the left to
darken the image. You can also type a value in the box to set the level. Click
OK
.
If the scanned image is too light, set a lower
Brightness
level and scan the image again.
If the image is too dark, set a higher
Brightness
level and
scan the image again.
Note
The
Brightness
setting is only available when
Black & White
or
Gray (Error Diffusion)
or
True Gray
is
selected.
Contrast
You can only adjust the
Contrast
level when you have selected one of the Gray Scale settings, it is not
available when you have selected Black & White as the selected
Color Type
.
Increasing the
Contrast
level (by dragging the slide bar to the right) emphasizes dark and light areas of the
image, while reducing the
Contrast
level (by dragging the slide bar to the left) reveals more detail in the gray
areas. Instead of using the slide bar, you can type a value in the box to set the Contrast. Click
OK
.