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94 Chapter 6: The Matrox Orion modules for 4Sight-II
Synchronization
signal extraction
From digitizing
component
or ADC
Clock and sync. signals from video
input devices and external triggers
In addition, the converter's black and white reference levels can be adjusted
individually. The black and white reference levels can be adjusted between 0.6 V
to 1.6 V and 1.6 V to 2.6 V respectively, in increments of 10.23 mV (98 distinct
adjustments).
Use the MIL/MIL-Lite MdigReference() function to set the black and white
reference levels.
Although RGB video signals do not enter the decoder, their synchronization
signals do. Synchronization signals can be transmitted along a separate channel
(VID_IN4 or VID_IN8), or they can be coupled with one of the R, G, or B
component channels.
Pixel converter
The pixel converter of Matrox Orion /RGB for 4Sight-II also contains a capture
control and a pixel formatter. These components have the same capabilities in all
versions of the Matrox Orion modules for 4Sight-II.
However, the pixel formatter of the /RGB version is also capable of extracting the
Y component from the data stream, converting the color image into an 8-bit
monochrome image.
In addition to the capture control and pixel formatter, the pixel converter of
Matrox Orion /RGB for 4Sight-II contains the following elements:
• YUV-to-RGB color space converter.
• RGB-to-YUV color space converter.
• Input lookup tables.
Pixel Converter
Pixel
YUV-to-RGB
Formatter
color space
converter
Set grabbing conditions
Input
LUTs
Capture Control
Interrupt generation
To
RGB-to-YUV
G450
color space
converter
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