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Description of the data path – ALLIED Vision Technologies Marlin F-201 User Manual

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MARLIN Technical Manual V2.4.0

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Control and video data signals........................................................................................ 52

Inputs .................................................................................................................... 52

Triggers.............................................................................................................. 52

Input/output pin control........................................................................................... 53

IO_INP_CTRL 1-2 ................................................................................................. 53
Trigger delay ....................................................................................................... 54

Outputs .................................................................................................................. 56

IO_OUTP_CTRL 1-2 ............................................................................................... 58
Output modes...................................................................................................... 59

Pixel data.................................................................................................................... 61

Description of the data path

........................................................................65

Block diagrams of the cameras ....................................................................................... 65

Black and white cameras ........................................................................................... 65
Color cameras .......................................................................................................... 66

IBIS5A multiple slope (High Dynamic Range mode) ........................................................... 67

MARLIN F-131 with three knee-points ..................................................................... 68

White balance .............................................................................................................. 70

One-push automatic white balance ............................................................................. 72
Automatic white balance ........................................................................................... 73

Auto shutter ................................................................................................................ 75
Auto gain .................................................................................................................... 78
Manual gain................................................................................................................. 80
Brightness (black level or offset) .................................................................................... 80
Look-up table (LUT) and gamma function......................................................................... 82

Loading an LUT into the camera ................................................................................. 83

Shading correction........................................................................................................ 84

How to store shading image....................................................................................... 84
Automatic generation of correction data...................................................................... 85

Requirements ...................................................................................................... 85
Algorithm ........................................................................................................... 85

Loading a shading image out of the camera ................................................................. 89
Loading a shading image into the camera .................................................................... 90

DSNU & blemish correction
(MARLIN F-131B only) ................................................................................................... 91
Horizontal mirror function ............................................................................................. 93
Binning (only Marlin CCD b/w models) ............................................................................. 94

2 x binning ............................................................................................................. 94
Vertical binning ....................................................................................................... 95
Horizontal binning ................................................................................................... 96
2 x full binning........................................................................................................ 97

Sub-sampling (MARLIN F-131B/C,
MARLIN F-146C and MARLIN F-201C) ............................................................................... 98

What is sub-sampling? .............................................................................................. 98
Which Marlin models have sub-sampling?..................................................................... 98
Description of sub-sampling....................................................................................... 98

Parameter update timing ............................................................................................. 103
Sharpness.................................................................................................................. 104

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