Honeywell 1900gsr 2 User Manual

							CHAPTER
11
Xenon/Granit User Guide 241
IMAGING COMMANDS
The scanner is like a digital camera in the way it captures, manipulates, and trans-
fers images. The following commands allow you to alter the way the scanner per-
forms these functions.
Note:If you are using the scanner in a stand, you must set the In-Stand Sensor Mode to Off 
in order to take images (see In-Stand Sensor Mode on page 125).
Single-Use Basis
Imaging Commands with their modifiers send instructions to the scanner on a sin-
gle-use basis, and take effect for a single image capture. Once that capture is com-
plete, the scanner reverts to its imaging default settings. If you want to 
permanently change a setting, you must use the serial default commands (see 
Chapter 13). When the serial default command is used, that selection becomes the 
new, permanent setting for the scanner.
Command Syntax
Multiple modifiers and commands can be issued within one sequence. If additional 
modifiers are to be applied to the same command, just add the modifiers to that 
command. For example, to add 2 modifiers to the Image Snap command, such as 
setting the Imaging Style to 1P and the Wait for Trigger to 1T, you would enter 
IMGSNP1P1T. 
Note:After processing an image capture command (IMGSNP or IMGBOX), you must follow 
it with an IMGSHP command if you want to see it on your terminal.
To add a command to a sequence, each new command is separated with a semico-
lon. For example, to add the Image Ship command to the above sequence, you 
would enter IMGSNP1P1T;IMGSHP. 
The imaging commands are:
Image Snap - IMGSNP (page 242) 
						

							242 Xenon/Granit User GuideImage Ship - IMGSHP (page 245)
Intelligent Signature Capture - IMGBOX (page 255)
The modifiers for each of these commands follow the command description.
Note:The images included with each command description are examples only. The results 
you achieve may be different from those included in this manual. The quality of the 
output you receive will vary depending on lighting, quality of the initial image/object 
being captured, and distance of the scanner from the image/object. To achieve a high 
quality image, it is recommended that you position your scanner 4-6" (10.2-15.2 cm) 
away from the image/object you are capturing.
Step 1 - Take a Picture Using IMGSNP
Image Snap - IMGSNP
An image is taken whenever the hardware trigger is pressed, or when the Image 
Snap (IMGSNP) command is processed. 
The image snap command has many different modifiers that can be used to 
change the look of the image in memory. Any number of modifiers may be 
appended to the IMGSNP command. 
Example:You can use the following command to snap an image, increase the gain, and have 
the beeper sound once the snap is complete: IMGSNP2G1B
IMGSNP Modifiers
P - Imaging Style 
This sets the Image Snap style. 
0PDecoding Style. This processing allows a few frames to be taken until the 
exposure parameters are met. The last frame is then available for further 
use.
1PPhoto Style (default). This mimics a simple digital camera, and results in 
a visually optimized image.
2PManual Style. This is an advanced style that should only be used by an 
experienced user. It allows you the most freedom to set up the scanner, 
and has no auto-exposure. 
						

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B - Beeper
Causes a beep to sound after an image is snapped.
0B No beep (default)
1B Sounds a beep when the image is captured. 
T - Wait for Trigger
Waits for a hardware trigger press before taking the image. This is only available 
when using Photo Style (1P).
0T Takes image immediately (default)
1T Waits for a trigger press, then takes the image
L - LED State
Determines if the LEDs should be on or off, and when. Ambient illumination (0L) is 
preferred for taking pictures of color documents, such as ID cards, especially when 
the scanner is in a stand. LED illumination (1L) is preferred when the scanner is 
handheld. LED State is not available when using Decoding Style (0P). 
0L LEDs off (default)
1L LEDs on 
E - Exposure
Exposure is used in Manual Style only (2P), and allows you to set the exposure 
time. This is similar to setting a shutter speed on a camera. The exposure time 
determines how long the scanner takes to record an image. On a bright day, expo-
sure times can be very short because plenty of light is available to help record an 
image. At nighttime, exposure time can increase dramatically due to the near 
absence of light. Units are 127 microseconds. (Default = 7874) 
nE Range: 1 - 7874
Example:
Exposure at 7874E with 
fluorescent lighting:Exposure at 100E with 
fluorescent lighting: 
						

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G - Gain
Gain is used in Manual Style only (2P). Like a volume control, the gain modifier 
boosts the signal and multiplies the pixel value. As you increase the gain, the noise 
in an image is also amplified.
1G No gain (default)
2G Medium gain
4G Heavy gain
8G Maximum gain
Example:
W - Target White Value
Sets the target for the median grayscale value in the captured image. For capturing 
close-up images of high contrast documents, a lower setting, such as 75, is recom-
mended. Higher settings result in longer exposure times and brighter images, but 
if the setting is too high, the image may be overexposed. Target White Value is only 
available when using Photo Style (1P). (Default = 125)
nW Range: 0 - 255
Example:
D - Delta for Acceptance
This sets the allowable range for the white value setting (see W - Target White 
Value). Delta is only available when using Photo Style (1P). (Default = 25)
nD Range: 0 - 255
Gain at 1G: Gain at 4G: Gain at 8G:
White Value at 75W: White Value at 125W: White Value at 200W: 
						

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U - Update Tries
This sets the maximum number of frames the scanner should take to reach the D - 
Delta for Acceptance. Update Tries is only available when using Photo Style (1P). 
(Default = 6)
nURange: 0 - 10
% - Target Set Point Percentage
Sets the target point for the light and dark values in the captured image. A setting 
of 75% means 75% of the pixels are at or below the target white value, and 25% of 
the pixels are above the target white value. Altering this setting from the default is 
not recommended under normal circumstances. To alter grayscale values, W - 
Target White Value should be used. (Default = 50)
n% Range: 1 - 99
Example:
Step 2 - Ship a Picture Using IMGSHP
Image Ship - IMGSHP
An image is taken whenever the trigger is pressed or when the Image Snap 
(IMGSNP) command is processed. The last image is always stored in memory. You 
can “ship” the image by using the IMGSHP command. 
The image ship commands have many different modifiers that can be used to 
change the look of the image output. Modifiers affect the image that is transmit-
ted, but do not affect the image in memory. Any number of modifiers may be 
appended to the IMGSHP command. 
Example:You can use the following command to snap and ship a bitmap image with gamma 
correction and document image filtering: IMGSNP;IMGSHP8F75K26U 
Target Set Point 
Percentage at 97%:Target Set Point 
Percentage at 40%: Target Set Point 
Percentage at 50%: 
						

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IMGSHP Modifiers
A - Infinity Filter
Enhances pictures taken from very long distances (greater than 10 feet or 3m). The 
Infinity Filter should not be used with IMGSNP Modifiers (page 242).
0A Infinity filter off (default)
1A Infinity filter on
Example:
C - Compensation
Flattens the image to account for variations in illumination across the image.
0C Compensation disabled (default)
1C Compensation enabled
Example:
D - Pixel Depth
Indicates the number of bits per pixel in the transmitted image (KIM or BMP format 
only).
8D 8 bits per pixel, grayscale image (default)
1D 1 bit per pixel, black and white image
Infinity Filter off (0A) 
from approximately 12 feet 
(3.66m) away:nfinity Filter on (1A)
from approximately 12 feet (3.66m) 
away:
Compensation at 0C: Compensation at 1C: 
						

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E - Edge Sharpen
An edge sharpen filter cleans up the edges of an image, making it look cleaner and 
sharper. While edge sharpening does make the image look cleaner, it also removes 
some fine detail from the original image. The strength of the edge sharpen filter 
can be entered from 1 to 24. Entering a 23E gives the sharpest edges, but also 
increases noise in the image.
0E Don’t sharpen image (default)
14E Apply edge sharpen for typical image
ne Apply edge sharpen using strength n (n = 1-24) 
Example:
Edge Sharpen at 0E: Edge Sharpen at 24E: 
						

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F - File Format
Indicates the desired format for the image. 
0F KIM format 
1F TIFF binary
2F TIFF binary group 4, compressed
3F TIFF grayscale
4F Uncompressed binary (upper left to lower right, 1 pixel/bit, 0 padded end 
of line)
5F Uncompressed grayscale (upper left to lower right, bitmap format)
6F JPEG image (default)
8F BMP format (lower right to upper left, uncompressed)
10F TIFF color compressed image
11F  TIFF color uncompressed image
12F JPEG color image
14F BMP color format
15F BMP Uncompressed raw image
H - Histogram Stretch
Increases the contrast of the transmitted image. Not available with some image 
formats. 
0H No stretch (default)
1H Histogram stretch
Example:
Histogram Stretch at 0H: Histogram Stretch at 1H: 
						

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I - Invert Image
Invert image is used to rotate the image around the X or Y axis. 
1ix Invert around the X axis (flips picture upside down)
1iy Invert around the Y axis (flips picture left to right)
Example:
IF- Noise Reduction
Used to reduce the salt and pepper noise in an image.
0if No salt and pepper noise reduction (default)
1if Salt and pepper noise reduction
Example:
Image with Invert 
Image set to 1ix: Image not inverted: Image with Invert 
Image set to 1iy:
Noise Reduction On (1if): Noise Reduction Off (0if): 
						

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IR - Image Rotate 
0ir Image as snapped (rightside up) (default)
1ir Rotate image 90 degrees to the right
2ir Rotate image 180 degrees (upside down)
3ir Rotate image 90 degrees to the left
Example:
J - JPEG Image Quality
Sets the desired quality when the JPEG image format is selected. Higher numbers 
result in higher quality, but larger files. Smaller numbers result in greater amounts 
of lossy compression, faster transmission times, lower quality, but smaller files. 
(Default = 50)
nJ   I m a g e  i s  c o m p r e ss e d  a s  m u c h  a s  p o ssible while preserving quality factor 
of n (n = 0 - 100)
0J worst quality (smallest file)
100J best quality (largest file)
Image Rotate set to 0ir:  Image Rotate set to 2ir:
  Image Rotate set to 1ir:   Image Rotate set to 3ir: