Image Setting

Note:

The following is explained using Windows Vista procedures.

Important:

• Do not apply these functions to images without moire, dust/scratches or faded colors. The color tone may be adversely affected.
• Selectable settings depend on color mode settings.
• Scanning may take longer when you use Image Settings.
• Image correction results may not be reflected in the preview image.

Image Settings allows you to set the following items:

Auto Tone
Unsharp Mask
Descreen
Reduce Dust and Scratches
Fading Correction
Grain Correction
Backlight Correction
Gutter Shadow Correction

Auto Tone

When this is set to ON, the brightness of the specified portion of the image is automatically optimized. The result of the color adjustment will be reflected in the entire image. This setting is ON by default.

Important:

• You can set Auto Tone after preview.
• You can set this setting when Recommended is selected on the Color Settings tab of the Preferences dialog box.
• When you click Multi-Crop, this setting turns to ON and you cannot change it.

Note: When previewing or scanning images with consistent color tone (such as the sky), the color tone may change from the source image due to the Auto Tone function. In that case, set Auto Tone to OFF.

Unsharp Mask

When this is set to ON, the outline of the subjects is emphasized to sharpen the image. This setting is ON by default.

Descreen

Printed photos and pictures are displayed as a collection of fine dots. Moire is a phenomenon where dots may interfere with each other and cause uneven gradation and a stripe pattern in the image. Descreen is the function for reducing this moire effect. This setting is OFF by default.

Note:

• Even if Descreen is set to ON, some moire effects may remain if Unsharp Mask is set to ON. In that case, set Unsharp Mask to OFF.
• Selecting Magazine(Color) in Select Source in Basic Mode has the same effect as setting Descreen to ON in Advanced Mode.

Reduce Dust and Scratches

Scanned photos may contain white dots caused by dust or scratches. Use this function to reduce such noise.
This setting is None by default.

Setting	Result
None	Dust and scratches will not be reduced.
Low	Select this to reduce small dust particles and scratches. Large ones may remain.
Medium	It is recommended that you normally select this setting.
High	Select this to reduce small/large dust particles and scratches. Evidence of the reduction process may remain and may also remove delicate parts of the image.

Note:

• This function may not be effective for some types of photos.
• It is recommended that you select None when scanning printed materials.

Fading Correction

Use this function to correct photos that have faded with time or have a colorcast. Colorcast is a phenomenon where a specific color affects the entire picture due to the weather or ambient strong colors. This setting is None by default.

Setting	Result
None	Fading correction will not be applied.
Low	Select this to correct a small amount of fading and colorcast.
Medium	It is recommended that you normally select this setting.
High	Select this to correct a large amount of fading and colorcast. This can affect the tone of the image.

Note:

• You can set Fading Correction after preview.
• Fading Correction may not be effective if the scan area is too small.
• You can set this setting when Recommended is selected on the Color Settings tab of the Preferences dialog box.
• When you click Multi-Crop, this setting turns to None and you cannot change it.

Grain Correction

Use this function to reduce graininess (roughness) in photos taken with high-speed or sensitized film. This setting is None by default.

Setting	Result
None	Graininess will not be reduced.
Low	Select this when the photo is slightly grainy.
Medium	It is recommended that you normally select this setting.
High	Select this when the photo is very grainy. This can affect the gradation and sharpness of the image.

Note:

Grain Correction may not be effective if the scan area is too small.

Backlight Correction

Use this function to correct photos that have been shot against light.

When you change the Backlight Correction setting, the result will be reflected in the preview image.

Setting	Result
None	Backlight correction will not be applied.
Low	Select this to correct slightly backlit photos. This will not affect the image contrast.
Medium	It is recommended that you normally select this setting.
High	Select this to correct strongly backlit photos. This can affect the image contrast.

Note:

• You can set Backlight Correction after preview.
• You can set this setting when Recommended is selected on the Color Settings tab of the Preferences dialog box.
• Backlight Correction may not be effective if the scan area is too small.
• When you click Multi-Crop, you cannot change this setting.
• Noise patterns may appear when Backlight Correction is applied. Applying Grain Correction and setting Unsharp Mask to OFF may reduce the noise patterns.

Gutter Shadow Correction

Use this function to correct shadows that appear between pages when scanning open booklets.

When you set the Gutter Shadow Correction setting in the preveiw image, the result will be reflected. Preview the effects before scanning, as results vary depending on the type of document and how it is pressed.

Unclear or blurred text/lines caused by curved pages are not corrected.

Setting	Result
None	Gutter shadow will not be corrected.
Low	Select this when the effect level is too strong with the medium setting.
Medium	It is recommended that you normally select this setting.
High	Select this when the effect level is too weak with the medium setting.

Note:

• Do not place items that weigh 4.4 lbs (2.0 kg) or more on the Platen. Also, do not press on the document with a force exceeding 4.4 lbs (2.0 kg). If you press heavily, the scanner may not work correctly or you might break the glass.
• When you click Multi-Crop, this setting is not available. Click Reset then change the setting.
• Align the document with the edge of the Platen. If not, the shadow will not be corrected properly.

• Shadows may not be corrected properly depending on the document. If the page background is not white, shadows may not be detected correctly or may not be detected at all.
• While scanning, press down on the spine with the same amount of pressure you used to preview the scan. If the binding part is not even, the shadow will not be corrected properly.

• How to place the document depends on your model and the document to be scanned.
• Cover the document with black cloth if white spots, streaks, or colored patterns appear in scan results due to ambient light entering between the document and the Platen.
• If the shadow is not corrected properly, adjust the cropping frame on the preview image.