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Figure 11 ►
Bit string of Mono 8 bit
and RGB 8 bit.
Figure 12 ►
Spreading of Mono 10
bit over 2 bytes.
Figure 13 ►
Spreading of Mono 12
bit over two bytes.
Figure 14 ►
Spreading of two pix-
els in Mono 12 bit over
three bytes (packed
mode).
16
Pixel depth: In general, pixel depth defines the number of possible different values for
each color channel. Mostly this will be 8 bit, which means 2
ors".
For RGB or BGR these 8 bits per channel equal 24 bits overall.
Two bytes are needed for transmitting more than 8 bits per pixel - even if the
second byte is not completely filled with data. In order to save bandwidth, the
packed formats were introduced to Baumer EXG cameras. In this formats,
the unused bits of one pixel are filled with data from the next pixel.
8 bit:
10 bit:
12 bit:
Packed:
4.1.2.2 Pixel Formats on Baumer EXG Cameras
Camera Type
Monochrome
EXG03
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■
EXG50
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□
Color
EXG03c
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□
Byte 1
Byte 2
unused bits
Byte 1
Byte 2
Byte 1
Byte 2
Pixel 0
Byte 1
Byte 2
■
□
□
□
□
□
■
■
□
□
□
□
□
■
■
different "col-
8
Byte 3
unused bits
Pixel 1
Byte 3
□
□
□
□
□
□
□
□
□
□
□
■
■
■
■
□
□
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