Argox AS-9500 - Manual (Page 123)

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and white images (1 bit per pixel). The optimal setting is 26U.
0U Document image filter off (default)
26U Apply document image filter for typical document image
nU Apply document image filter using grayscale threshold n. Use
lower numbers when the image contrast is lower. 1U will have a
similar effect to 22e. Range: 0-255.
V - Blur Image: Smoothes transitions by averaging the pixels next
to the hard edges of defined lines and shaded areas in an image.
0V Don’t blur (default)
1V Blur
W - Histogram Ship: A histogram gives a quick picture of the
tonal range of an image, or key type. A low-key image has detail
concentrated in the shadows; a high-key image has detail
concentrated in the highlights; and an average-key image has detail
concentrated in the midtones. This modifier ships the histogram
for an image.
0W Don’t ship histogram (default)
1W Ship histogram
Intelligent Signature Capture - IMGBOX
IMGBOX commands can only be used with PDF417, Code 39,
Code 128, Aztec, Codabar, and Interleaved 2 of 5 symbologies.
Intelligent signature capture ships only part of an image to the host
application. This method reduces transfer time and file size, while
simplifying signature capture. Below is an example of an
intelligent signature capture application. In this example, the
operator reads the bar code, which is then transmitted to the host
application. Upon the receipt of the bar code data, the host
application sends the IMGBOX command, which tells the scanner
to output only the area of the image corresponding to the signature
capture box. The scanner also automatically adjusts for aspect ratio
and distortion, issues that arise due to scanner skew with respect to
the bar code. Align the aimers with the signature area (not with the
bar code), then activate the trigger. Send the IMGBOX command
string after the trigger command.