The fg module provides Python bindings for the FGCamera library.
 
The functions in the C API are implemented by the Python module 'fg'.
The Pyton help briefly describes the function arguments and return values.
Take a look at the library documentation for a detailed description:
http://api.imago.tech/FGCamera
 
API Differences
---------------
 
* C API:
    - All functions return a UINT32 value to indicate the status of each function.
    - Additional function results are returned by passing pointer arguments.
* Python API:
    - Functions will raise a Python exception in case of an error.
    - Function results are regular return values of the function.
      Mupltiple result values are returned as a tuple.
    - Image buffers are represented by the 'voidptr' object which implements
      the Python buffer protocol.
    - Enumerations are implemented by enum.Enum objects.
 
Example
-------
 
    # Import the fg module:
    import fg
 
    print("Initializing grabber...")
 
    # initialize the camera using automatic type detection
    fg.install_camera(fg.CAMERA_TYPE.Vxx_AUTO)
 
    # set sensor AOI and pixel format if desired:
    # fg.set_scan_param(x, y, width, height, 1, fg.PIXEL_TYPE.Y_8)
 
    # set the exposure time:
    fg.set_shutter_time(1000)
 
    # Get the size of the sensor
    result = fg.get_image_size()
    width = result[0]
    height = result[1]
 
    # allocate image buffers
    imageList = []
    for i in range(4):
        imageList.append(fg.alloc_image())
 
    # add buffers to the acquisition queue
    for image in imageList:
        fg.append_image(image)
 
    # set trigger mode to free-run
    fg.set_trigger_mode(fg.TRIGGER_MODE.FREERUN)
 
    print("Starting acquisition loop, press CTRL-C to stop the program.");
    while True:
        try:
            # wait for the next frame
            result = fg.get_image(1000)
            error = result[0]
            if error == fg.ERROR_CODE.NoError:
                ptr = result[1]
                image_number = result[2]
                if (image_number % 100) == 0:
                    print("Frame: {}".format(image_number))
 
                # todo: work with the image data.
                # For example, convert to numpy array:
                # image = numpy.ndarray((height, width), dtype=np.uint8, buffer=ptr)
 
                # add buffer to the acquisition queue again
                fg.append_image(ptr);
            elif error == fg.ERROR_CODE.BrokenImage:
                # the buffer is valid, but the contents are invalid
                print("get_image() returned a broken image")
                ptr = result[1]
                fg.append_image(ptr);
            elif error == fg.ERROR_CODE.GrabTimeOut:
                # timout occured, the image is invalid
                print("get_image() timeout occured")
            else:
                # other errors
                print("get_image() failed, error code: {}".format(error))
        except KeyboardInterrupt:
            print("Stopping acquisition")
            break
 
    # abort image acquisition
    fg.stop_image()
 
    # free buffers
    for image in imageList:
        fg.free_image(image)
 
    # close the camera
    fg.uninstall_camera()

Classes
		builtins.object .array .simplewrapper .wrapper .voidptr builtins.type(builtins.object) .wrappertype enum.Enum(builtins.object) CAMERA_TYPE ERROR_CODE PIXEL_ORDER PIXEL_TYPE TRIGGER_MODE   class CAMERA_TYPE(enum.Enum)     CAMERA_TYPE(value, names=None, *, module=None, qualname=None, type=None, start=1)   An enumeration.     Method resolution order: CAMERA_TYPE enum.Enum builtins.object Data and other attributes defined here: CCVS1STMU0300A = <CAMERA_TYPE.CCVS1STMU0300A: 18> FILE_BMP = <CAMERA_TYPE.FILE_BMP: 26> VCx_AUTO = <CAMERA_TYPE.VCx_AUTO: 1> VCx_DR2K7 = <CAMERA_TYPE.VCx_DR2K7: 10> VCx_DR2X2K7 = <CAMERA_TYPE.VCx_DR2X2K7: 14> VCx_DR2X2K7_RGB = <CAMERA_TYPE.VCx_DR2X2K7_RGB: 16> VCx_DR2X4K7 = <CAMERA_TYPE.VCx_DR2X4K7: 15> VCx_DR2X4K7_RGB = <CAMERA_TYPE.VCx_DR2X4K7_RGB: 17> VCx_DR4K35 = <CAMERA_TYPE.VCx_DR4K35: 12> VCx_DR4K7 = <CAMERA_TYPE.VCx_DR4K7: 11> VCx_DR8K35 = <CAMERA_TYPE.VCx_DR8K35: 13> VCx_EV76C560C = <CAMERA_TYPE.VCx_EV76C560C: 5> VCx_EV76C560M = <CAMERA_TYPE.VCx_EV76C560M: 4> VCx_EV76C570C = <CAMERA_TYPE.VCx_EV76C570C: 7> VCx_EV76C570M = <CAMERA_TYPE.VCx_EV76C570M: 6> VCx_L181C = <CAMERA_TYPE.VCx_L181C: 30> VCx_L181M = <CAMERA_TYPE.VCx_L181M: 29> VCx_MT9V032C = <CAMERA_TYPE.VCx_MT9V032C: 3> VCx_MT9V032M = <CAMERA_TYPE.VCx_MT9V032M: 2> VCx_NOIP3SE5000A = <CAMERA_TYPE.VCx_NOIP3SE5000A: 9> VCx_NOIP3SN5000A = <CAMERA_TYPE.VCx_NOIP3SN5000A: 8> VSx_AUTO = <CAMERA_TYPE.VSx_AUTO: 19> VSx_EV2S02MB = <CAMERA_TYPE.VSx_EV2S02MB: 22> VSx_EV2S02MC = <CAMERA_TYPE.VSx_EV2S02MC: 23> VSx_EV2S05MB = <CAMERA_TYPE.VSx_EV2S05MB: 24> VSx_EV2S05MC = <CAMERA_TYPE.VSx_EV2S05MC: 25> VSx_IMX296LL = <CAMERA_TYPE.VSx_IMX296LL: 27> VSx_MT9V032C = <CAMERA_TYPE.VSx_MT9V032C: 21> VSx_MT9V032M = <CAMERA_TYPE.VSx_MT9V032M: 20> Vxx_AUTO = <CAMERA_TYPE.Vxx_AUTO: 0> Data descriptors inherited from enum.Enum: name The name of the Enum member. value The value of the Enum member. Readonly properties inherited from enum.EnumMeta: __members__ Returns a mapping of member name->value.   This mapping lists all enum members, including aliases. Note that this is a read-only view of the internal mapping.   class ERROR_CODE(enum.Enum)     ERROR_CODE(value, names=None, *, module=None, qualname=None, type=None, start=1)   An enumeration.     Method resolution order: ERROR_CODE enum.Enum builtins.object Data and other attributes defined here: BrokenImage = <ERROR_CODE.BrokenImage: 6> GrabTimeOut = <ERROR_CODE.GrabTimeOut: 5> NoError = <ERROR_CODE.NoError: 0> Data descriptors inherited from enum.Enum: name The name of the Enum member. value The value of the Enum member. Readonly properties inherited from enum.EnumMeta: __members__ Returns a mapping of member name->value.   This mapping lists all enum members, including aliases. Note that this is a read-only view of the internal mapping.   class PIXEL_ORDER(enum.Enum)     PIXEL_ORDER(value, names=None, *, module=None, qualname=None, type=None, start=1)   An enumeration.     Method resolution order: PIXEL_ORDER enum.Enum builtins.object Data and other attributes defined here: BG = <PIXEL_ORDER.BG: 2> GB = <PIXEL_ORDER.GB: 4> GR = <PIXEL_ORDER.GR: 3> RG = <PIXEL_ORDER.RG: 1> RGB = <PIXEL_ORDER.RGB: 5> Y = <PIXEL_ORDER.Y: 0> Data descriptors inherited from enum.Enum: name The name of the Enum member. value The value of the Enum member. Readonly properties inherited from enum.EnumMeta: __members__ Returns a mapping of member name->value.   This mapping lists all enum members, including aliases. Note that this is a read-only view of the internal mapping.   class PIXEL_TYPE(enum.Enum)     PIXEL_TYPE(value, names=None, *, module=None, qualname=None, type=None, start=1)   An enumeration.     Method resolution order: PIXEL_TYPE enum.Enum builtins.object Data and other attributes defined here: RGBX_32 = <PIXEL_TYPE.RGBX_32: 2> RGB_24 = <PIXEL_TYPE.RGB_24: 3> Y_16 = <PIXEL_TYPE.Y_16: 1> Y_8 = <PIXEL_TYPE.Y_8: 0> Data descriptors inherited from enum.Enum: name The name of the Enum member. value The value of the Enum member. Readonly properties inherited from enum.EnumMeta: __members__ Returns a mapping of member name->value.   This mapping lists all enum members, including aliases. Note that this is a read-only view of the internal mapping.   class TRIGGER_MODE(enum.Enum)     TRIGGER_MODE(value, names=None, *, module=None, qualname=None, type=None, start=1)   An enumeration.     Method resolution order: TRIGGER_MODE enum.Enum builtins.object Data and other attributes defined here: FREERUN = <TRIGGER_MODE.FREERUN: 2> HARDWARE = <TRIGGER_MODE.HARDWARE: 1> SOFTWARE = <TRIGGER_MODE.SOFTWARE: 0> Data descriptors inherited from enum.Enum: name The name of the Enum member. value The value of the Enum member. Readonly properties inherited from enum.EnumMeta: __members__ Returns a mapping of member name->value.   This mapping lists all enum members, including aliases. Note that this is a read-only view of the internal mapping.   class array(builtins.object)       Methods defined here: __delitem__(self, key, /) Delete self[key]. __getitem__(self, key, /) Return self[key]. __len__(self, /) Return len(self). __repr__(self, /) Return repr(self). __setitem__(self, key, value, /) Set self[key] to value. Static methods defined here: __new__(*args, **kwargs) from builtins.type Create and return a new object.  See help(type) for accurate signature.   class simplewrapper(builtins.object)       Methods defined here: __init__(self, /, *args, **kwargs) Initialize self.  See help(type(self)) for accurate signature. Static methods defined here: __new__(*args, **kwargs) from .wrappertype Create and return a new object.  See help(type) for accurate signature. Data descriptors defined here: __dict__   class voidptr(builtins.object)       Methods defined here: __bool__(self, /) self != 0 __delitem__(self, key, /) Delete self[key]. __getitem__(self, key, /) Return self[key]. __int__(self, /) int(self) __len__(self, /) Return len(self). __setitem__(self, key, value, /) Set self[key] to value. asarray(...) ascapsule(...) asstring(...) getsize(...) getwriteable(...) setsize(...) setwriteable(...) Static methods defined here: __new__(*args, **kwargs) from builtins.type Create and return a new object.  See help(type) for accurate signature.   class wrapper(simplewrapper)       Method resolution order: wrapper simplewrapper builtins.object Methods inherited from simplewrapper: __init__(self, /, *args, **kwargs) Initialize self.  See help(type(self)) for accurate signature. Static methods inherited from simplewrapper: __new__(*args, **kwargs) from .wrappertype Create and return a new object.  See help(type) for accurate signature. Data descriptors inherited from simplewrapper: __dict__   class wrappertype(builtins.type)       Method resolution order: wrappertype builtins.type builtins.object Methods defined here: __delattr__(self, name, /) Implement delattr(self, name). __getattribute__(self, name, /) Return getattr(self, name). __init__(self, /, *args, **kwargs) Initialize self.  See help(type(self)) for accurate signature. __setattr__(self, name, value, /) Implement setattr(self, name, value). Methods inherited from builtins.type: __call__(self, /, *args, **kwargs) Call self as a function. __dir__(self, /) Specialized __dir__ implementation for types. __instancecheck__(self, instance, /) Check if an object is an instance. __repr__(self, /) Return repr(self). __sizeof__(self, /) Return memory consumption of the type object. __subclasscheck__(self, subclass, /) Check if a class is a subclass. __subclasses__(self, /) Return a list of immediate subclasses. mro(self, /) Return a type's method resolution order. Class methods inherited from builtins.type: __prepare__(...) from builtins.type __prepare__() -> dict used to create the namespace for the class statement Static methods inherited from builtins.type: __new__(*args, **kwargs) from builtins.type Create and return a new object.  See help(type) for accurate signature. Data descriptors inherited from builtins.type: __abstractmethods__ __dict__ __text_signature__ Data and other attributes inherited from builtins.type: __base__ = <class 'type'> type(object_or_name, bases, dict) type(object) -> the object's type type(name, bases, dict) -> a new type __bases__ = (<class 'type'>,) __basicsize__ = 920 __dictoffset__ = 264 __flags__ = 2148293632 __itemsize__ = 40 __mro__ = (<class '.wrappertype'>, <class 'type'>, <class 'object'>) __weakrefoffset__ = 368

Functions
		alloc_image(...) alloc_image() -> (voidptr)   Allocates and returns a image buffer for storing sensor frames.   The returned 'voidptr' object supports the Python buffer protocol. append_image(...) append_image(ptr: voidptr)   Puts an image buffer into the aquisition queue. assign(...) cast(...) delete(...) dump(...) enableautoconversion(...) free_image(...) free_image(ptr: voidptr)   Releases an image buffer. get_aoi(...) get_aoi() -> (int, int, int, int, PIXEL_TYPE)   Returns the area of interest and the output format.   The function returns the following values:  - [0]: AOI starting column  - [1]: AOI starting row  - [2]: AOI width  - [3]: AOI height  - [4]: Pixel format get_black(...) get_black() -> int   Returns the normalized black level. get_camera_type(...) get_camera_type() -> CAMERA_TYPE   Returns the installed camera type. get_gain(...) get_gain() -> int   Returns the normalized gain value. get_gain_rgb(...) get_gain_rgb() -> (int, int, int)   Returns the normalized color gain values for supported hardware. get_image(...) get_image(TimeOut_ms: int) -> (ERROR_CODE, voidptr, int)   Returns captured images to the user.   The function returns the following values:  - [0]: error code, can be NoError, GrabTimeOut or BrokenImage  - [1]: image buffer object, not valid if the error code is GrabTimeOut  - [2]: image number, only valid if the error code is NoError get_image_size(...) get_image_size() -> (int, int, int)   Returns the size of the image buffers.   The function returns the following values:  - [0]: image width in pixels  - [1]: image height in pixels  - [2]: image size in bytes get_pixel_order(...) get_pixel_order() -> PIXEL_ORDER   Returns the order of pixel components within image buffers. get_scan_param(...) get_scan_param() -> (int, int, int, int, int, PIXEL_TYPE)   Returns the area of interest and the output format.   The function returns the following values:  - [0]: Sensor AOI starting column  - [1]: Sensor AOI starting row  - [2]: Sensor AOI width  - [3]: Sensor AOI height  - [4]: Number of sensor scans to complete one image  - [5]: Pixel format get_shutter_time(...) get_shutter_time() -> int   Returns the exposure time in microseconds. get_special_option(...) get_special_option(option: Optional[str]) -> int   Returns a special camera property.    option: Propery name get_timestamp(...) get_timestamp(ptr: voidptr) -> (long long)   Returns the image completion timestamp of a captured image. get_trigger_mode(...) get_trigger_mode() -> TRIGGER_MODE   Returns the configured trigger mode. get_version(...) get_version() -> (int, int, int, int)   Returns the library version.   The function returns to following values:  - [0]: Major version  - [1]: Minor version  - [2]: Patch level  - [3]: Build number install_camera(...) install_camera(camera_type: CAMERA_TYPE = CAMERA_TYPE.Vxx_AUTO)   Opens and initializes the camera.   camera_type: Selects the camera type to use. isdeleted(...) ispycreated(...) ispyowned(...) save_image(...) save_image(ptr: voidptr, filename: Optional[str])   Saves the given image into an BMP file.   ptr:        Image pointer filename:   File name set_aoi(...) set_aoi(x1: int, y1: int, x2: int, y2: int, pixel_type: PIXEL_TYPE)   Sets the area of interest and the output format. set_black(...) set_black(black: int)   Sets the black level using a normalized value. set_gain(...) set_gain(gain: int)   Sets the gain using a normalized value. set_gain_rgb(...) set_gain_rgb(gain_red: int, gain_green: int, gain_blue: int)   Sets the color component gain values for supported hardware. set_scan_param(...) set_scan_param(scan_x: int, scan_y: int, scan_width: int, scan_height: int, image_scan_count: int, pixel_type: PIXEL_TYPE)   Sets the area of interest and output format.   scan_x:           Sensor AOI starting column scan_y:           Sensor AOI starting row scan_width:       Sensor AOI width scan_height:      Sensor AOI height image_scan_count: Number of sensor scans to complete one image pixel_type:       Pixel format set_shutter_time(...) set_shutter_time(shutter_time_us: int)   Sets the exposure time in microseconds. set_special_option(...) set_special_option(option: Optional[str], arg: int)   Configures a special camera property.    option: Propery name arg:    Property value set_trigger_mode(...) set_trigger_mode(trigger_mode: TRIGGER_MODE)   Sets the trigger mode. setdeleted(...) settracemask(...) stop_image(...) stop_image()   Forces the camera to stop grabbing and using any buffers. transferback(...) transferto(...) trigger_image(...) trigger_image()   Triggers the next image in software triggered mode. uninstall_camera(...) uninstall_camera()   Closes the camera. unwrapinstance(...) wrapinstance(...)

Data
		SIP_VERSION = 395020 SIP_VERSION_STR = '6.7.12'