Epson ActionScanner II Mac User Manual - TWAIN Mac - Page 42

Adjusting Gamma Correction, Option, Line Art

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4. When the image in the preview window looks the way you want, close the Image Controls dialog box. 5. You can now scan the image into your application. You can return any option you've modified to its default setting by holding down the Option key and clicking the option's slide bar. To reset all the Image Controls, click the Reset button just below the Image Controls icon. Adjusting Gamma Correction Adjusting the gamma levels lets you change the pixel brightness in the midtones, highlights, and shadows of an image without dramatically changing it. This modifies the contrast in image tones so they reproduce with greater detail on a printer or monitor. (The Gamma Correction setting is not selectable if you chose the Line Art Image Type setting.) Note: Gamma Correction is not available for the ES-300C. After you have previewed an image, choose the Gamma Correction icon, . You see the following screen: Using Special Effects 4-5

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4.
When the image in the preview window looks the way you
want,
close the Image Controls dialog box.
5.
You can now scan the image into your application.
You can return any option you’ve modified to its default
setting by holding down the
Option
key and clicking the
option’s slide bar. To reset all the Image Controls, click the
Reset button just below the Image Controls icon.
Adjusting Gamma Correction
Adjusting the gamma levels lets you change the pixel
brightness in the midtones, highlights, and shadows of an
image without dramatically changing it. This modifies the
contrast in image tones so they reproduce with greater detail
on a printer or monitor. (The Gamma Correction setting is not
selectable if you chose the
Line Art
Image Type setting.)
Note:
Gamma Correction is not available for the ES-300C.
After you have previewed
an image, choose the Gamma
Correction icon,
. You see the following screen:
Using Special Effects
4-5