VCC-12CL1M
Rev. 900-795-35-00
©2016 CIS Corporation. All rights reserved.
18
9.
Binarization
Camera output level can be binarized. When the brightness is low against the binarization threshold value,
the signal level of 0h is output. When the brightness is high, the signal level of 3FFh is output. (The value is
at 10bit output mode.)
9.1.
Binarization Threshold Value Mode
The below 3 types of binarization threshold value modes are selectable.
Standard
・・・
Based on the brightness distribution of image, the threshold value is calculated
automatically inside a camera.
※
Set a parameter of binarization threshold value (address 25) to 512d
Barcode
・・・
Based on the brightness distribution of edge areas in image, the threshold value is
calculated automatically inside a camera.
The object which has a lot of edges such as barcode and character can be binarized
with less influences of the fluctuation in flat areas and/or backgrounds. (Refer to the
below drawing)
※
Not effective when there is only horizontal edge.
※
Set a parameter of binarization threshold value to 512d.
Manual
・・・
Based on a parameter of binarization threshold value, the binarization is performed.
Level
pixels
position
Binarization
threshold
Level
0 h
3FF h
◆
Before binarization
◆
After binarization
pixels
position
Summary of Contents for VCC-12CL1M
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