Honeywell HH490 User Manual

HH490 User Guide 155
K - Gamma Correction
Gamma measures the brightness of midtone values produced by the image. You
can brighten or darken an image using gamma correction. A higher gamma
correction yields an overall brighter image. The lower the setting, the darker the
image. The optimal setting for text images is 50K.
0K
50K
n K
Gamma correction off (default)
Apply gamma correction for brightening typical document image
Apply gamma correction factor
n ( n = 0-1,000)
Example:
Gamma Correction set to 0K: Gamma Correction set to
50K:
Gamma Correction set to
255K:
L, R, T, B, M - Image Cropping
Ships a window of the image by specifying the left, right, top, and bottom pixel
coordinates. Device columns are numbered 0 through 1279, and device rows are
numbered 0 through 959.
n L The left edge of the shipped image corresponds to column n of the
image in memory. Range: 000 - 843.
(Default = 0)
n R The right edge of the shipped image corresponds to column n - 1 of
the image in memory. Range: 000 - 843.
(Default = all columns)
n T The top edge of the shipped image corresponds to row n of the image
in memory. Range: 000 - 639.
(Default = 0)
n B The bottom edge of the shipped image corresponds to row n - 1 of
the image in memory. Range: 000 - 639.
(Default = all rows)
Example:
Uncropped Image: Image Crop set to 300R: Image Crop set to 300L:

Honeywell HH490 Specifications

General

Duplex scanning	No
Maximum scan size	- mm
Optical scanning resolution	1280 x 800 DPI
Scanner type	Handheld scanner
Product color	White
Quantity per pack	1 pc(s)
Sensor type	-
Barcode reader	Yes
Daily duty cycle (max)	- pages
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	0 - 95 %
Power supply type	DC
Optional connectivity	Serial (RS-232)

Weight and Dimensions

Depth	72.5 mm
Width	125 mm
Height	154 mm
Weight	130 g