
Chapter 1 — Using the CN4
CN4 Mobile Computer User’s Manual 31
Configuring the Image Capture Application
The default Image Capture settings apply to most situations where
the ambient lighting is adequate for office work. However, you may
need to change those settings depending on the conditions in which
images will be captured, such as outdoors in bright sunlight or inside
a darkened warehouse.
To configure Image Capture settings
1 Tap Options and choose Settings.
2 Change settings as needed. For help, see the next table.
3 Tap Options and choose Save Changes and Exit, or choose
Discard Changes and Exit to abandon your changes.
Image Capture Settings Descriptions
Setting Description
Edge
Enhancement
Adjusts contrast to enhance the edges of objects.
Default is Medium. Too high a setting for the
environment adds noise to the image.
Lighting
Correction
Corrects for inconsistent lighting; for example, if the
edges of the image are much darker than the center,
this feature lightens the edges to match the center.
Default is Disabled.
Noise
Reduction
Reduces noise resulting from edge enhancement.
Range is 0 (default) to 9. Too high a value can cause
banding.
Subsampling Sets the resolution of the image by choosing a ratio. A
ratio of 1:4 means that the processed image will
contain 1 pixel for every 4 pixels in the original image.
The lower the ratio, the larger and more detailed the
image. Range is 1:2 to 1:8. Default is None.
Rotation Rotates the processed image clockwise in 90°
increments. Default is 0 (no rotation).
File Format File type for saved images. Choose either BMP
(default) or JPEG format.
Compression
Quality
Sets JPEG compression quality. Range is 0 to 100%.
Default is 60.
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