HP N9120 HP Scanjet N9120 User Guide - Page 17

Filter out color from a document (color dropout) - specifications

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NOTE: HP recommends scanning long pages individually at a resolution of 300 dpi or lower. Filter out color from a document (color dropout) You can filter out a dark background from the image content, for example black text on green paper or red instructions on a form. Removing colors from the scan might reduce the scan file size and improve optical character recognition (OCR) results. You can select to filter out a color channel (red, green, or blue) or up to three specific colors. For specific colors, the sensitivity setting controls how closely a scanned color must approximate the specified color. To select colors to eliminate from a scan in an HP Smart Document Scan Software profile, follow these steps: 1. Open the HP Smart Document Scan Software. 2. Select a scan profile, and then click Edit. 3. On the Scan tab of the Profile Settings dialog box, click Advanced Settings. 4. On the Color Dropout tab of the Properties dialog box, specify the color dropout settings. For information about the color dropout settings, see the online help for the scanning software that you are using. NOTE: The color channel filter only applies to grayscale scans and to black and white scans. Specific color filters apply to all color modes. NOTE: To filter out color in another scanning software, navigate to the ISIS or TWAIN Advanced Settings dialog box. On the Color Dropout tab, specify the color dropout settings. Set the background color for scans from the automatic document feeder When you scan from the automatic document feeder (ADF), you can choose a white or black background for the scan. When the scan background contrasts with the color at the outside edges of the document, the scanning software is better able to distinguish the edges of the scanned document. For example, use the black background to scan a document that is printed on white paper. To select the scan background color in an HP Smart Document Scan Software profile, follow these steps: 1. Open the HP Smart Document Scan Software. 2. Select a scan profile, and then click Edit. 3. On the Scan tab of the Profile Settings dialog box, click Advanced Settings. 4. On the More tab of the Properties dialog box, select a color from the ADF Background drop-down list. Set the background color for scans from the automatic document feeder 15

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NOTE:
HP recommends scanning long pages individually at a resolution of 300 dpi
or lower.
Filter out color from a document (color dropout)
You can filter out a dark background from the image content, for example black text on
green paper or red instructions on a form. Removing colors from the scan might reduce
the scan file size and improve optical character recognition (OCR) results. You can select
to filter out a color channel (red, green, or blue) or up to three specific colors. For specific
colors, the sensitivity setting controls how closely a scanned color must approximate the
specified color.
To select colors to eliminate from a scan in an HP Smart Document Scan Software profile,
follow these steps:
1.
Open the HP Smart Document Scan Software.
2.
Select a scan profile, and then click
Edit
.
3.
On the
Scan
tab of the
Profile Settings
dialog box, click
Advanced Settings
.
4.
On the
Color Dropout
tab of the
Properties
dialog box, specify the color dropout
settings.
For information about the color dropout settings, see the online help for the scanning
software that you are using.
NOTE:
The color channel filter only applies to grayscale scans and to black and
white scans. Specific color filters apply to all color modes.
NOTE:
To filter out color in another scanning software, navigate to the ISIS or
TWAIN
Advanced Settings
dialog box. On the
Color Dropout
tab, specify the color
dropout settings.
Set the background color for scans from the automatic
document feeder
When you scan from the automatic document feeder (ADF), you can choose a white or
black background for the scan. When the scan background contrasts with the color at the
outside edges of the document, the scanning software is better able to distinguish the
edges of the scanned document. For example, use the black background to scan a
document that is printed on white paper.
To select the scan background color in an HP Smart Document Scan Software profile,
follow these steps:
1.
Open the HP Smart Document Scan Software.
2.
Select a scan profile, and then click
Edit
.
3.
On the
Scan
tab of the
Profile Settings
dialog box, click
Advanced Settings
.
4.
On the
More
tab of the
Properties
dialog box, select a color from the
ADF
Background
drop-down list.
Set the background color for scans from the automatic document feeder
15