Daheng Imaging MARS 10GigE Series, User Manual

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8.Features
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 98
MSB LSB
bi t 11 bi t 10 bi t 9 bi t 8 bi t 7 bi t 6 bi t 5 bi t 4 bi t 3 bi t 2 bi t 1 bi t 0
Bi na ry 0 0 0 0 0 0 0 1 0 1 1 0
MSB LSB
bi t 11 bi t 10 bi t 9 bi t 8 bi t 7 bi t 6 bi t 5 bi t 4 bi t 3 bi t 2 bi t 1 bi t 0
Bi na ry 0 0 0 0 0 0 1 0 1 1 0 0
Raw pi xel
value: 22
Shift pi xel
value: 44
The least significant bit in each 12-bit image data is set to 0.
Example 2: Digital Shift by 2, 8-bit Image Data
Raw pi xel
value(12bit): 726
Raw pi xel
value(8bit): 45
Shift pi xel
value(8bit): 181
Assume that your camera has a maximum pixel bit depth of 12-bit, but is currently using an 8-bit pixel
format. In this case, the camera first performs the digital shift calculation on the 12-bit image data. Then,
the camera transmits the 8 most significant bits.
Example 3: Digital Shift by 1, 12-bit Image Data, High Value
Assume that your camera is using a 12-bit pixel format. Also assume that one of your original pixel values
is 2839.
MSB LSB
bi t 11 bi t 10 bi t 9 bi t 8 bi t 7 bi t 6 bi t 5 bi t 4 bi t 3 bi t 2 bi t 1 bi t 0
Bi nary 1 0 1 1 0 0 0 1 0 1 1 1
MSB LSB
bi t 11 bi t 10 bi t 9 bi t 8 bi t 7 bi t 6 bi t 5 bi t 4 bi t 3 bi t 2 bi t 1 bi t 0
Bi nary 1 1 1 1 1 1 1 1 1 1 1 1
Raw pi xel
value: 28 39
Shift pi xel
value:
409 5
If you apply digital shift by 1 to this pixel value, the resulting value is greater than the maximum possible
value for 12-bit pixel formats. In this case, the value is set to the maximum value, i.e., all bits are set to 1.