Xerox Travel Scanner 150 User Guide

Xerox Travel Scanner 150
User’s Guide151 Color image brightness examples
The examples below show the original image at the default setting of 50% brightness level, 25% brightness and 
75% brightness. Adjusting the brightness level does not make the image completely black nor completely white.
Technical note:
Most monitors have a brightness setting that is user adjustable. When viewing scanned images on-screen, versus 
printing the image, the brightness setting of the monitor may affect how light or dark...

Xerox Travel Scanner 150
User’s Guide 152 • Pencil written letters, forms, or drawings - 55% to 65%
• Faded pictures or old documents with faded text - 60% to 70%
• Light colored carbon copy paper, such as yellow or pale pink or pale green, with light text - 45% to 55%
•Newspaper or magazine pages - 55% to 70%
• Book pages - 60% to 75%
• Pictures taken inside or in the shade - 40% to 60%
Color image contrast examples
The examples below show the original image at the default setting of 50% contrast level,...

Xerox Travel Scanner 150
User’s Guide153 As the gamma value is adjusted higher, the tone curve bends and the highlights of the image are expanded, 
lightening the highlights without overall lightening the image with white as seen with raising the brightness level. 
This way, the highlights and shadows in the image are maintained by saturating the pixels with lighter levels of the 
same color rather than just adding white.
Adjusting the gamma level is based on how you want the image to appear and there is...

Xerox Travel Scanner 150
User’s Guide 154 The following example shows the original grayscale image and the inverted image.
The following example shows the original color image and the inverted image. 
Mirror Image
The Mirror image option flips the image left-to-right.
Bit Depth Reduction
The Bit depth reduction options are only available when scanning in black and white. Click the drop down menu 
and select an option from the list. 

Xerox Travel Scanner 150
User’s Guide155 Threshold and Dynamic threshold
Threshold enables you to set what level of light or dark to look for on a page. When scanning in black and white, 
everything on the page is set to either white pixels or black pixels in the final image. If the text on the page is a light 
color, then the text may be gone in the final image as the scanner will change those light colors to white pixels. The 
threshold slider lets you set the level of darkness or lightness of the text...

Xerox Travel Scanner 150
User’s Guide 156 Bayer dither scan - Close up
Advanced Panel Options
The options in this panel may also appear in the Main panel, but with additional settings for you to fine-tune the 
feature you've selected.
Despeckle
This option removes speckles from the background. Speckles are small spots on an image that the scanner 
interpreted as a valid part of the document. For example, an irregularity in the paper, a small wrinkle, or holes where 
a staple was removed may show up...

Xerox Travel Scanner 150
User’s Guide157 For example, if the radius is 3 and the number is 5, then the document is evaluated in sections of 3x3 pixels and if 
there are more than 5 stray dots within a 3x3 area, they are not considered a speckle.
Filter
Use the Filter option to increase or decrease the sharpness in the scanned image. Click the drop down menu and 
select an option from the list. Use the Mask slider to adjust the tolerance level of the filter.
Color Management
Select this option to use the...

Xerox Travel Scanner 150
User’s Guide 158 To input a custom color using its RGB value, select Custom in this list and then input the values for R, G, and B in 
their appropriate boxes, where R, G, and B are numbers from 0 to 255. 
To l e r a n c e—use the slider to adjust the precision of the color dropout. 
•More precise—this option removes a range of colors closest to the pure color selected or defined in the 
custom fields. For example, pure red has an R/G/B value of 255/0/0. Selecting Red indicates...

Xerox Travel Scanner 150
User’s Guide159
Driver Configuration
Use the Driver configuration section to configure the add-on modules, select interface options, and view the 
scanner hardware properties. When the Advanced configuration mode is selected, a scanner panel option will be 
available for you to change any hardware settings that may be available for your scanner.
Disabled Options in this Section
Some options in the interface may be grayed out and cannot be selected. Grayed out options are either...

Xerox Travel Scanner 150
User’s Guide 160 There are some features in the scanner interface that are disabled until a module is installed that contains those 
options. When the module is installed, the features will enable in the scanner interface for you to use them. 
Reordering the Modules
Select a module in the list and click the up or down arrow to change the order of the module in the list. Changing the 
order of the modules changes the order in which the image processing options are used. For...