Image Calibration Control
    • 10 Jun 2024
    • 8 Minutes to read
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    Image Calibration Control

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    Article summary

    Image Calibration Mode - Deprecated

    Name

    ImageCalibrationMode

    Custom

    Description

    Sets internal camera parameter for calibration DSNU or PRNU or even directly perform internal calibration .

    Interface

    Enumeration

    Access mode

    Read/Write

    Adjustable

    while grabbing

    No

    Value range

    See enum entries table below.

    Default value

    Off

    Availability

    ALL

    Notes

    Mode = ImageCalibrationModeDSNU / ImageCalibrationModePRNU:
    Features are set internally, so that raw, un-scaled and un-transformed image data is generated. With that image data DRNU or PRNU references can be generated.

    If an affected feature is read, the modified value is returned.

    While ImageCalibrationMode is active, the internally changed features cannot be modified.

    When ImageCalibrationMode is set to Off, features are restored to their previous values.

    The following features are read-only when ImageCalibrationMode is enabled:

    • ColorTransformationSelector
    • ColorTransformationEnable
    • BrightnessContrastEnable
    • DarkSignalNonUniformityReferenceOutput
    • PhotoResponseNonUniformityReferenceOutput
    • DecimationHorizontalFloat
    • BinningHorizontal
    • ReverseX
    • LutEnable
    • GainControlRegionVisible
    • UserSetLoad

    The Image Calibration Mode for DSNU-creation will additionally disable digital gain. This is not reflected by the features.

    Mode = CalibrateDSNUInternal / CalibratePRNUInternal:
    Internal DSNU or PRNU calibration is done. All internal parameters are adapted automatically.

    Calibration data is written to LUT selected by
    Dark Signal Non-Uniformity (DSNU) Selector or
    Photo Response Non-Uniformity (PRNU) Selector.

    CalibrateDSNUInternal or CalibratePRNUInternal can directly be started from Mode=Off.
    ImageCalibrationModeDSNU or ImageCalibrationModePRNU is not required to be set before.

    After calibration has finished ImageCalibrationMode returns to previous state.


    The ImageCalibrationMode feature should be polled to check the status of reference generation. Once the feature value changes from Calibrate<DSNU|PRNU>Internal to the previous state e.g., Off the process has finished. To cancel the current process set the value to Off.

    Error behavior

    See the device error code documentation.

    Image Calibration Mode Enum Entries:

    Name

    Description

    Off

    ImageCalibrationModeDSNU

    Image from camera is prepared for DSNU calibration.
    Former CalibrateDarkSignalNonUniformity

    ImageCalibrationModePRNU

    Image from camera is prepared for PRNU calibration
    Former CalibratePhotoResponseNonUniformity

    CalibrateDSNUInternal

    Camera performs internal DSNU calibration (This feature is deprecated, use FlatFieldCorrectionStartCalibration. It will be removed from package 3.0.0)

    CalibratePRNUInternal

    Camera performs internal PRNU calibration (This feature is deprecated, use FlatFieldCorrectionStartCalibration. It will be removed from package 3.0.0)

    Dark Signal Non-Uniformity (DSNU) Selector - Deprecated

    Name

    DarkSignalNonUniformitySelector

    Custom

    Description

    Selects a DSNU LUT.

    Interface

    Enumeration

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    See enum entries table below.

    Default value

    LUT1

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionSelector
    It will be removed from package 3.0.0

    Error behavior

    See the device error code documentation.

    Dark Signal Non-Uniformity (DSNU) Selector Enum Entries:

    Name

    Description

    LUT1

    Look-Up-Table 1

    LUT2

    Look-Up-Table 2

    DSNU Dataset Information - Deprecated

    Name

    DarkSignalNonUniformityDataSetInformation
    [DarkSignalNonUniformitySelector]

    Custom

    Description

    Gives information of the selected DSNU LUT state.

    Interface

    Enumeration

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    See enum entries table below.

    Default value

    -

    Availability

    ALL

    Notes

    This feature is deprecated.

    It will be removed from package 3.0.0

    Error behavior

    -

    Dark Signal Non-Uniformity (DSNU) Selector Enum Entries:

    Name

    Description

    InactiveUnconfigured

    The selected DSNU correction dataset is not used in the image processing pipeline of the camera and does not contain valid DSNU correction values.

    InactiveConfigured

    The selected DSNU correction dataset is not used in the image processing pipeline of the camera but contains valid DSNU correction values.

    ActiveConfigured

    The selected DSNU correction dataset is used in the image processing pipeline of the camera and contains valid DSNU correction values.

    DSNU Available Planes - Deprecated

    Name

    DarkSignalNonUniformityAvailablePlains

    Custom

    Description

    Indicates which color planes are available.

    Interface

    Enumeration

    Access mode

    Read Write

    Adjustable

    while grabbing

    Yes

    Value range

    See enum entries table below.

    Default value

    Red

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionAvailablePlanes
    It will be removed from package 3.0.0

    Error behavior

    See the device error code documentation.

    DSNU Available Planes Enum Entries:

    Name

    Description

    Red

    Selects red channel to read the first and last valid pixel values.

    Green

    Selects green channel to read the first and last valid pixel values.

    Blue

    Selects blue channel to read the first and last valid pixel values.

    White

    Selects white channel to read the first and last valid pixel values.

    Infrared

    Selects Infrared channel to read the first and last valid pixel values.

    First Valid Pixel - Deprecated

    Name

    DarkSignalNonUniformityFirstPixelReg
    [DarkSignalNonUniformityAvailablePlains]

    Custom

    Description

    Indicates first valid pixel.

    Interface

    Integer

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    ≥0

    Default value

    -

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionFirstPixel
    It will be removed from package 3.0.0

    Error behavior

    -

    Last Valid Pixel - Deprecated

    Name

    DarkSignalNonUniformityLastPixelReg
    [DarkSignalNonUniformityAvailablePlains]

    Custom

    Description

    Indicates last valid pixel.

    Interface

    Integer

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    ≥0

    Default value

    This feature is deprecated, use FlatFieldCorrectionLastPixel
    It will be removed from package 3.0.0

    Availability

    ALL

    Notes

    -

    Error behavior

    -

    DSNU Display Reference Values - Deprecated

    Name

    DarkSignalNonUniformityReferenceOutput

    Custom

    Description

    Displays the DSNU reference as a static output video.

    Interface

    Boolean

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    True – Displays the DSNU reference values

    False – Does not display the DSNU reference values

    Default value

    False

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionDisplayReference
    It will be removed from package 3.0.0

    This feature is available only if DSNU LUT is active and configured.
    This parameter is not stored in user set.

    Error behavior

    See the device error code documentation.

    Photo Response Non-Uniformity (PRNU) Selector - Deprecated

    Name

    PhotoResponseNonUniformitySelector

    Custom

    Description

    Selects a PRNU LUT.

    Interface

    Enumeration

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    See enum entries table below.

    Default value

    LUT1

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionSelector
    It will be removed from package 3.0.0

    Error behavior

    See the device error code documentation.

    Photo Response Non-Uniformity (PRNU) Selector Enum Entries:

    Name

    Description

    LUT1

    Look-Up-Table 1

    LUT2

    Look-Up-Table 2

    PRNU Dataset Information - Deprecated

    Name

    PhotoResponseNonUniformityDataSetInformation
    [PhotoResponseNonUniformitySelector]

    Custom

    Description

    Gives information of the selected PRNU LUT state.

    Interface

    Enumeration

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    See enum entries table below.

    Default value

    -

    Availability

    ALL

    Notes

    This feature is deprecated.
    It will be removed from package 3.0.0

    Error behavior

    -

    Photo Response Non-Uniformity (DSNU) Selector Enum Entries:

    Name

    Description

    InactiveUnconfigured

    The selected PRNU correction dataset is not used in the image processing pipeline of the camera and does not contain valid PRNU correction values.

    InactiveConfigured

    The selected PRNU correction dataset is not used in the image processing pipeline of the camera but contains valid PRNU correction values.

    ActiveConfigured

    The selected PRNU correction dataset is used in the image processing pipeline of the camera and contains valid PRNU correction values.

    PRNU Available Planes - Deprecated

    Name

    PhotoResponseNonUniformityAvailablePlains

    Custom

    Description

    Indicates first valid pixel.

    Interface

    Enumeration

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    Default value

    Red

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionAvailablePlanes
    It will be removed from package 3.0.0

    Error behavior

    See the device error code documentation.

    PRNU Available Planes Enum Entries:

    Name

    Description

    Red

    Selects red channel to read the first and last valid pixel values.

    Green

    Selects green channel to read the first and last valid pixel values.

    Blue

    Selects blue channel to read the first and last valid pixel values.

    White

    Selects red channel to read the first and last valid pixel values.

    Infrared

    Selects Infrared channel to read the first and last valid pixel values.

    First Valid Pixel - Deprecated

    Name

    PhotoResponseNonUniformityFirstPixelReg
    [PhotoResponseNonUniformityAvailablePlains]

    Custom

    Description

    Indicates first valid pixel.

    Interface

    Integer

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    ≥0

    Default value

    -

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionFirstPixel
    It will be removed from package 3.0.0

    Error behavior

    -

    Last Valid Pixel - Deprecated

    Name

    PhotoResponseNonUniformityLastPixelReg

    [PhotoResponseNonUniformityAvailablePlains]

    Custom

    Description

    Indicates last valid pixel.

    Interface

    Integer

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    ≥0

    Default value

    -

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionLastPixel
    It will be removed from package 3.0.0

    Error behavior

    -

    PRNU Display Reference Values - Deprecated

    Name

    PhotoResponseNonUniformityReferenceOutput

    Custom

    Description

    Displays the PRNU reference as a static output video.

    Interface

    Boolean

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    True – Display the PRNU reference values

    False – Do not display the PRNU reference values

    Default value

    False

    Availability

    ALL

    Notes

    This feature is deprecated, use FlatFieldCorrectionDisplayReference
    It will be removed from package 3.0.0

    This feature is valid and available only if PRNU LUT is active and configured.

    This parameter is not stored in user set.

    Error behavior

    See the device error code documentation.

    Flat Field Correction Calibration Mode

    Name

    FlatFieldCorrectionCalibrationMode

    Custom

    Description

    Sets camera into mode for calibration of DSNU or PRNU..

    Interface

    Enumeration

    Access mode

    Read/Write

    Adjustable

    while grabbing

    No

    Value range

    See enum entries table below.

    Default value

    Off

    Availability

    ALL

    Notes

    Mode = DSNU / PRNU:
    Features are set internally, so that raw, un-scaled and un-transformed image data is generated. With that image data DRNU or PRNU references can be generated.

    If an affected feature is read, the modified value is returned.

    While FlatFieldCorrectionCalibrationMode is active, the internally changed features cannot be modified.

    When FlatFieldCorrectionCalibrationMode is set to Off, features are restored to their previous values.

    The following features are read-only when FlatFieldCorrectionCalibrationMode is enabled:

    • ColorTransformationSelector
    • ColorTransformationEnable
    • BrightnessContrastEnable
    • DarkSignalNonUniformityReferenceOutput
    • PhotoResponseNonUniformityReferenceOutput
    • DecimationHorizontalFloat
    • BinningHorizontal
    • ReverseX
    • LutEnable
    • GainControlRegionVisible
    • UserSetLoad

    The Flat Field Correction Calibration Mode for DSNU-creation will additionally disable digital gain. This is not reflected by the features.


    DSNU or PRNU is not required to be set before.

    After calibration has finished FlatFieldCorrectionCalibrationMode returns to previous state.


    The FlatFieldCorrectionCalibrationMode feature should be polled to check the status of reference generation. To cancel the current process set the value to Off.

    Error behavior

    See the device error code documentation.

    Flat Field Correction Calibration Mode Enum Entries:

    Name

    Description

    Off

    DSNU

    Image from camera is prepared for DSNU calibration.
    Former ImageCalibrationModeDSNU

    PRNU

    Image from camera is prepared for PRNU calibration
    Former ImageCalibrationModePRNUy

    Flat Field Correction Selector

    Name

    FlatFieldCorrectionSelector

    Custom

    Description

    Specifies the flat field correction type DSNU or PRNU data set.

    Interface

    Enumeration

    Access mode

    Read/Write

    Adjustable

    while grabbing

    No

    Value range

    See enum entries table below.

    Default value

    DSNU DataSet 1

    Availability

    ALL

    Notes

    Error behavior

    See the device error code documentation.

    Flat Field Correction Selector Enum Entries:

    Name

    Description

    DSNU DataSet 1

    Selects the DSNU DataSet1

    DSNU DataSet 2

    Selects the DSNU DataSet 2

    PRNU DataSet 1

    Selects the PRNU DataSet 1

    PRNU DataSet 2

    Selects the PRNU DataSet 2

    Enable

    Name

    FlatFieldCorrectionEnable[FlatFieldCorrectionSelector]

    Custom

    Description

    Enable/Disable the selected DataSet.

    Interface

    Boolean

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    True – Activates the selected DataSet

    False – Deactivates the selected DataSet

    Default value

    False

    Availability

    ALL

    Notes

    For some camera variants Dual PRNU is supported for LED-Flashing. This means two PRNU Data Sets can be enabled and used for two pattern LED-Flash control.

    The PRNU1 Data set will be used for Pattern1 and the PRNU2 Data Set for Pattern two.

    Error behavior

    See the device error code documentation.

    DataSet Description

    Name

    FlatFieldCorrectionDataSetDescription[FlatFieldCorrectionSelector]

    Custom

    Description

    Leave the description to describe the chosen flat field correction selector.

    Interface

    String

    String length

    32

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    -

    Default value

    -

    Availability

    ALL

    Notes

    -

    Error behavior

    -

    Available Planes

    Name

    FlatFieldCorrectionAvailablePlanes

    [FlatFieldCorrectionSelector]

    Custom

    Description

    Indicates which color planes are available.

    Interface

    Enumeration

    Access mode

    Read Write

    Adjustable

    while grabbing

    Yes

    Value range

    See enum entries table below.

    Default value

    Red

    Availability

    ALL

    Notes

    -

    Error behavior

    See the device error code documentation.

    Flat Field Correction Available Planes Enum Entries:

    Name

    Description

    Red

    Selects red channel to read the first and last valid pixel values.

    Green

    Selects green channel to read the first and last valid pixel values.

    Blue

    Selects blue channel to read the first and last valid pixel values.

    White

    Selects white channel to read the first and last valid pixel values.

    Infrared

    Selects Infrared channel to read the first and last valid pixel values.

    First Valid Pixel

    Name

    FlatFieldCorrectionFirstPixel
    [FlatFieldCorrectionSelector] [FFCAvailablePlains]

    Custom

    Description

    Indicates first valid pixel.

    Interface

    Integer

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    ≥0

    Default value

    -

    Availability

    ALL

    Notes

    -

    Error behavior

    -

    Last Valid Pixel

    Name

    FlatFieldCorrectionLastPixel
    [FlatFieldCorrectionSelector] [FFCAvailablePlains]

    Custom

    Description

    Indicates last valid pixel.

    Interface

    Integer

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    ≥0

    Default value

    -

    Availability

    ALL

    Notes

    -

    Error behavior

    -

    Display Reference

    Name

    FlatFieldCorrectionDisplayReference[FlatFieldCorrectionSelector]

    Custom

    Description

    Displays the selected flat field correction reference as a static output video.

    Interface

    Boolean

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    True – Displays the selected flat field correction selector reference values

    False – Does not display the selected flat field correction selector reference values

    Default value

    False

    Availability

    ALL

    Notes

    This feature is available only if the selected data set is active and configured.
    This parameter is not stored in user set.

    Error behavior

    See the device error code documentation.

    Start Calibration

    Name

    FlatFieldCorrectionStartCalibration[FlatFieldCorrectionSelector]

    Custom

    Description

    Camera performs internal calibration for the selected flat field correction.

    Interface

    Command

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    1

    When command is executed, 0 is returned

    Default value

    1

    Availability

    ALL

    Notes

    When command is executed, Internal selected flat field correction calibration is done. All internal parameters are adapted automatically. Calibration data is written to the selected FlatFieldCorrectionSelector.

    Error behavior

    See the device error code documentation.

    Stop Calibration

    Name

    FlatFieldCorrectionStopCalibration[FlatFieldCorrectionSelector]

    Custom

    Description

    Camera stops performing internal calibration for the selected flat field correction.

    Interface

    Command

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    1

    When command is executed, 0 is returned

    Default value

    1

    Availability

    ALL

    Notes

    Error behavior

    See the device error code documentation.

    Calibration Status

    Name

    FlatFieldCorrectionCalibrationStatus[FlatFieldCorrectionSelector]

    Custom

    Description

    Displayes the calibration status.

    Interface

    Enumeration

    Access mode

    Read Only

    Adjustable

    while grabbing

    No

    Value range

    See enum entries table below.

    Default value

    Off

    Availability

    ALL

    Notes

    Error behavior

    See the device error code documentation.

    Calibration Status Enum Entries:

    Name

    Description

    Off

    No Calibration is performed

    Success

    Internal flat field correction calibration success

    DSNUWarning

    Enable DSNU to perform internal flat field correction calibration (PRNU)

    Error

    Internal flat field correction calibration error

    CalibrationInProgress

    Internal flat field correction calibration in progress

    Line Distance

    Name

    ImageCalibrationLineDistance

    Custom

    Description

    This feature is used to compensate the line distance of the sensors color channels.

    Interface

    Float

    Access mode

    Read/Write

    Adjustable

    while grabbing

    Yes

    Value range

    Package

    Min Value

    Max Value

    Up to 2.3.0

    0.0

    3.0

    2.4.0 and above

    0.0

    3.0 – For 4 channel pixel format

    6.0 – For 3 or 1 channel pixel format

    Default value

    2.0

    Availability

    ALL

    Notes

    -

    Error behavior

    See the device error code documentation.

    Scan Direction Source

    Name

    ScanDirectionSource

    Custom

    Description

    Selects the scan direction source.

    Interface

    Enumeration

    Access mode

    Read Write

    Adjustable

    while grabbing

    Yes

    Value range

    See enum entries table below.

    Default value

    Internal

    Availability

    ALL

    Notes

    This feature is not available if MasterSlaveMode is configured as Slave.

    Error behavior

    See the device error code documentation.

    Scan Direction Source Enum Entries:

    Name

    Description

    Internal

    Specifies internal scanning direction source

    Line3

    Specifies scanning direction source by the level of Line3

    Encoder0

    Specifies scanning direction source by Encoder0
    Currently only for EncoderSourceB=Line2

    Scan Direction

    Name

    ImageCalibrationScanDirection[ScanDirectionSource]

    Custom

    Description

    Controls scan direction processing.

    Interface

    Enumeration

    Access mode

    Read Write

    Adjustable

    while grabbing

    Yes

    Value range

    See enum entries table below.

    Default value

    Forward

    Availability

    ALL

    Notes

    This feature is not available if MasterSlaveMode is configured as Slave.

    This feature is writable only if ScanDirectionSource is Internal otherwise Read only.

    Error behavior

    See the device error code documentation.

    Scan Direction Enum Entries:

    Name

    Description

    Forward

    Specifies forward scanning direction of the camera (RGB).

    Backward

    Specifies backward scanning direction of the camera (BGR).

    Image Center Offset – Not Available for AllPIXA-EVO

    Name

    ImageCenterOffset

    Custom

    Description

    Displays the pixel offset between sensor center and scan target center.

    Interface

    Integer

    Access mode

    Read only

    Adjustable

    while grabbing

    -

    Value range

    ≥-15000

    Default value

    -

    Notes

    -

    Error behavior

    -


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