pylablib.devices.AlliedVision package

Submodules

pylablib.devices.AlliedVision.Bonito module

exception pylablib.devices.AlliedVision.Bonito.BonitoError

Bases: DeviceError

Generic AlliedVision Bonito error

add_note()

Exception.add_note(note) – add a note to the exception

args

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

class pylablib.devices.AlliedVision.Bonito.TDeviceInfo(version, serial_number, grabber_info)

Bases: tuple

grabber_info

serial_number

version

class pylablib.devices.AlliedVision.Bonito.IBonitoCamera(**kwargs)

Bases: ICamera

Error

alias of DeviceError

GrabberClass = None

open()

Open the connection

serial_query(query, timeout=3.0)

get_serial_parameter(comm, kind='int', timeout=3.0)

set_serial_parameter(comm, value)

get_device_info()

Get camera model data.

Return tuple (model, serial_number, grabber_info).

get_detector_size()

Get camera detector size (in pixels) as a tuple (width, height); as the camera does not provide this information, use the frame grabber parameters

get_roi()

Get current ROI.

Return tuple (hstart, hend, vstart, vend).

set_roi(hstart=0, hend=None, vstart=0, vend=None)

Setup camera ROI.

By default, all non-supplied parameters take extreme values.

get_roi_limits(hbin=1, vbin=1)

setup_acquisition(mode='sequence', nframes=100)

Setup acquisition.

Any non-specified acquisition parameters are assumed to be the same as previously set (or default, if not explicitly set before). Return the new acquisition parameters.

get_exposure_control_mode()

Get the exposure control mode.

Return tuple (timing_mode, feature_mode), where timing_mode determines how the exposure and frame period are timed (continuous, external trigger control, internal control, etc.), and feature_mode controls additional features (permanent exposure, enhanced full well mode). See documentation for details.

set_exposure_control_mode(timing_mode=None, feature_mode=None)

Set the exposure control mode.

timing_mode determines how the exposure and frame period are timed (continuous, external trigger control, internal control, etc.), and feature_mode controls additional features (permanent exposure, enhanced full well mode). See documentation for details.

get_exposure()

Get current exposure.

Note that the actual exposure might be different, depending on the exposure control mode.

set_exposure(exposure, setup_mode=True)

Set current exposure.

Note that the actual exposure might be different, depending on the exposure control mode. If setup_mode==True, automatically set the exposure mode to take the given exposure value into account.

get_frame_period()

Get frame period (time between two consecutive frames in the internal trigger mode).

Note that the actual frame period might be different, depending on the exposure control mode.

set_frame_period(frame_period, setup_mode=True)

Set frame period (time between two consecutive frames in the internal trigger mode).

Note that the actual frame period might be different, depending on the exposure control mode. If setup_mode==True, automatically set the exposure mode to take the given exposure value into account.

get_frame_timings()

Get acquisition timing.

Return tuple (exposure, frame_period).

is_status_line_enabled()

Check if the status line is on

enable_status_line(enabled=True)

Enable or disable status line

get_black_level_offset()

Get the black level offset

set_black_level_offset(offset)

Set the black level offset

get_digital_gain()

Get the digital gain (0 for 1x, 1 for 2x, 2 for 4x)

set_digital_gain(gain)

Get the digital gain (0 for 1x, 1 for 2x, 2 for 4x)

FrameTransferError

alias of DefaultFrameTransferError

TimeoutError

alias of DeviceError

acquisition_in_progress()

Check if acquisition is in progress

apply_settings(settings)

Apply the settings.

settings is the dict {name: value} of the device available settings. Non-applicable settings are ignored.

clear_acquisition()

Clear acquisition settings

close()

Close the connection

get_acquisition_parameters()

Get acquisition parameters.

Return dictionary {name: value}

get_data_dimensions()

Get readout data dimensions (in pixels) as a tuple (width, height); take indexing mode into account

get_device_variable(key)

Get the value of a settings, status, or full info parameter

get_frame_format()

Get format for the returned images.

Can be "list" (list of 2D arrays), "array" (a single 3D array), or "chunks" (list of 3D “chunk” arrays; supported for some cameras and provides the best performance).

get_frame_info_fields()

Get the names of frame info fields.

Applicable when frame info format (set by set_frame_info_format()) is "list" or "array".

get_frame_info_format()

Get format of the frame info.

Can be "namedtuple" (potentially nested named tuples; convenient to get particular values), "list" (flat list of values, with field names are given by get_frame_info_fields(); convenient for building a table), "array" (same as "list", but with a numpy array, which is easier to use for "chunks" frame format), or "dict" (flat dictionary with the same fields as the "list" format; more resilient to future format changes)

get_frame_info_period()

Get period of frame info acquisition.

Frame info might be skipped (set to None) except for frames which indices are divisible by period. Useful for certain cameras where acquiring frame info takes a lot of time and can reduce performance at higher frame rates. Note that this parameter can still be ignored (i.e., always set to 1) if the performance is not an issue for a given camera class.

get_frames_status()

Get acquisition and buffer status.

Return tuple (acquired, unread, skipped, size), where acquired is the total number of acquired frames, unread is the number of acquired but not read frames, skipped is the number of skipped (not read and then written over) frames, and buffer_size is the total buffer size (in frames).

get_full_info(include=0)

Get dict {name: value} containing full device information (including status and settings).

include specifies either a list of variables (only these variables are returned), a priority threshold (only values with the priority equal or higher are returned), or "all" (all available variables). Since the lowest priority is -10, setting include=-10 queries all available variables, which is equivalent to include="all".

get_full_status(include=0)

Get dict {name: value} containing the device status (including settings).

include specifies either a list of variables (only these variables are returned), a priority threshold (only values with the priority equal or higher are returned), or "all" (all available variables). Since the lowest priority is -10, setting include=-10 queries all available variables, which is equivalent to include="all".

get_image_indexing()

Get indexing for the returned images.

Can be "rct" (first index row, second index column, rows counted from the top), "rcb" (same as "rc", rows counted from the bottom), "xyt" (first index column, second index row, rows counted from the top), or "xyb" (same as "xyt", rows counted from the bottom)

get_new_images_range()

Get the range of the new images.

Return tuple (first, last) with images range (first inclusive). If no images are available, return None. If some images were in the buffer were overwritten, exclude them from the range.

get_settings(include=0)

Get dict {name: value} containing all the device settings.

include specifies either a list of variables (only these variables are returned), a priority threshold (only values with the priority equal or higher are returned), or "all" (all available variables). Since the lowest priority is -10, setting include=-10 queries all available variables, which is equivalent to include="all".

grab(nframes=1, frame_timeout=5.0, missing_frame='skip', return_info=False, buff_size=None)

Snap nframes images (with preset image read mode parameters)

buff_size determines buffer size (if None, use the default size). Timeout is specified for a single-frame acquisition, not for the whole acquisition time. missing_frame determines what to do with frames which have been lost: can be "none" (replacing them with None), "zero" (replacing them with zero-filled frame), or "skip" (skipping them, while still keeping total returned frames number to n). If return_info==True, return tuple (frames, infos), where infos is a list of frame info tuples (camera-dependent); if some frames are missing and missing_frame!="skip", the corresponding frame info is None.

is_acquisition_setup()

Check if acquisition is set up.

If the camera does not support separate acquisition setup, always return True.

is_opened()

Check if the device is connected

pausing_acquisition(clear=None, stop=True, setup_after=None, start_after=True, combine_nested=True)

Context manager which temporarily pauses acquisition during execution of with block.

Useful for applying certain settings which can’t be changed during the acquisition. If clear==True, clear acquisition in addition to stopping (by default, use the class default specified as _clear_pausing_acquisition attribute). If stop==True, stop the acquisition (if clear==True, stop regardless). If setup_after==True, setup the acquisition after pause if necessary (None means setup only if clearing was required). If start_after==True, start the acquisition after pause if necessary (None means start only if stopping was required). If combine_nested==True, then any nested pausing_acquisition calls will stop/clear acquisition as necessary, but won’t setup/start it again until this pausing_acquisition call is complete.

Yields tuple (acq_in_progress, acq_params), which indicates whether acquisition is currently in progress, and what are the current acquisition parameters.

read_multiple_images(rng=None, peek=False, missing_frame='skip', return_info=False, return_rng=False)

Read multiple images specified by rng (by default, all un-read images).

If rng is specified, it is a tuple (first, last) with images range (first inclusive). If no new frames are available, return an empty list; if no acquisition is running, return None. If peek==True, return images but not mark them as read. missing_frame determines what to do with frames which are out of range (missing or lost): can be "none" (replacing them with None), "zero" (replacing them with zero-filled frame), or "skip" (skipping them). If return_info==True, return tuple (frames, infos), where infos is a list of frame info tuples (camera-dependent, by default, only the frame index); if some frames are missing and missing_frame!="skip", the corresponding frame info is None. if return_rng==True, return the range covered resulting frames; if missing_frame=="skip", the range can be smaller than the supplied rng if some frames are skipped.

read_newest_image(peek=False, return_info=False)

Read the newest un-read image.

If no un-read frames are available, return None. If peek==True, return the image but not mark it as read. If return_info==True, return tuple (frame, info), where info is an info tuples (camera-dependent, see read_multiple_images()).

read_oldest_image(peek=False, return_info=False)

Read the oldest un-read image.

If no un-read frames are available, return None. If peek==True, return the image but not mark it as read. If return_info==True, return tuple (frame, info), where info is an info tuples (camera-dependent, see read_multiple_images()).

set_device_variable(key, value)

Set the value of a settings parameter

set_frame_format(fmt)

Set format for the returned images.

Can be "list" (list of 2D arrays), "array" (a single 3D array), "chunks" (list of 3D “chunk” arrays; supported for some cameras and provides the best performance), or "try_chunks" (same as "chunks", but if chunks are not supported, set to "list" instead). If format is "chunks" and chunks are not supported by the camera, it results in one frame per chunk. Note that if the format is set to "array" or "chunks", the frame info format is also automatically set to "array". If the format is set to "chunks", then the image info is also returned in chunks form (list of 2D info arrays with the same length as the corresponding frame chunks).

set_frame_info_format(fmt, include_fields=None)

Set format of the frame info.

Can be "namedtuple" (potentially nested named tuples; convenient to get particular values), "list" (flat list of values, with field names are given by get_frame_info_fields(); convenient for building a table), "array" (same as "list", but with a numpy array, which is easier to use for "chunks" frame format), or "dict" (flat dictionary with the same fields as the "list" format; more resilient to future format changes) If include_fields is not None, it specifies the fields included for non-"tuple" formats; note that order or include_fields is ignored, and the resulting fields are always ordered same as in the original.

set_frame_info_period(period=1)

Set period of frame info acquisition.

Frame info might be skipped (set to None) except for frames which indices are divisible by period. Useful for certain cameras where acquiring frame info takes a lot of time and can reduce performance at higher frame rates. Note that this parameter can still be ignored (i.e., always set to 1) if the performance is not an issue for a given camera class.

set_image_indexing(indexing)

Set up indexing for the returned images.

Can be "rct" (first index row, second index column, rows counted from the top), "rcb" (same as "rc", rows counted from the bottom), "xyt" (first index column, second index row, rows counted from the top), or "xyb" (same as "xyt", rows counted from the bottom)

snap(timeout=5.0, return_info=False)

Snap a single frame

start_acquisition(*args, **kwargs)

Start acquisition.

Can take the same keyword parameters as :meth:``setup_acquisition. If the acquisition is not set up yet, set it up using the supplied parameters (use default of setup_acquisition(),if the parameter is None). Otherwise, if any supplied parameters are different from the current ones, change them and reset the acquisition.

stop_acquisition()

Stop acquisition

wait_for_frame(since='lastread', nframes=1, timeout=20.0, error_on_stopped=False)

Wait for one or several new camera frames.

since specifies the reference point for waiting to acquire nframes frames; can be “lastread”`` (from the last read frame), "lastwait" (wait for the last successful wait_for_frame() call), "now" (from the start of the current call), or "start" (from the acquisition start, i.e., wait until nframes frames have been acquired). timeout can be either a number, None (infinite timeout), or a tuple (timeout, frame_timeout), in which case the call times out if the total time exceeds timeout, or a single frame wait exceeds frame_timeout. If the call times out, raise TimeoutError. If error_on_stopped==True and the acquisition is not running, raise Error; otherwise, simply return False without waiting.

class pylablib.devices.AlliedVision.Bonito.BonitoIMAQCamera(imaq_name='img0')

Bases: IBonitoCamera, IMAQFrameGrabber

IMAQ+PFCam interface to a AlliedVision Bonito camera.

Parameters:

imaq_name – IMAQ interface name (can be learned by IMAQ.list_cameras(); usually, but not always, starts with "img")

Error

alias of DeviceError

GrabberClass

alias of IMAQFrameGrabber

FrameTransferError

alias of DefaultFrameTransferError

TimeoutError = <Mock spec='str' id='139946410545616'>

acquisition_in_progress()

Check if acquisition is in progress

apply_settings(settings)

Apply the settings.

settings is the dict {name: value} of the device available settings. Non-applicable settings are ignored.

clear_acquisition()

Clear all acquisition details and free all buffers

clear_all_triggers(reset_acquisition=True)

Disable all triggers of the session

If the input triggers configuration has been changed, acquisition needs to be restart; if reset_acquisition==True, perform it automatically.

close()

Close connection to the camera

configure_trigger_in(trig_type, trig_line=0, trig_pol='high', trig_action='none', timeout=None, reset_acquisition=True)

Configure input trigger.

Parameters:

• trig_type (str) – trigger source type; can be "ext", "rtsi", "iso_in", or "software"

• trig_line (int) – trigger line number

• trig_pol (str) – trigger polarity; can be "high" or "low"

• trig_action (str) – trigger action; can be "none" (disable trigger), "capture" (start capturing), "stop" (stop capturing), "buffer" (capture a single frame), or "bufflist" (capture the whole buffer list once)

• timeout (float) – timeout in seconds; None means not timeout.

• reset_acquisition (bool) – if the input triggers configuration has been changed, acquisition needs to be restart; if True, perform it automatically

configure_trigger_out(trig_type, trig_line=0, trig_pol='high', trig_drive='disable')

Configure trigger output.

Parameters:

• trig_type (str) – trigger drive destination type; can be "ext", "rtsi", or "iso_out"

• trig_line (int) – trigger line number

• trig_pol (str) – trigger polarity; can be "high" or "low"

• trig_drive (str) – trigger output signal; can be "disable" (disable drive), "acq_in_progress" (asserted when acquisition is started), "acq_done" (asserted when acquisition is done), "unasserted" (force unasserted level), "asserted" (force asserted level), "hsync" (asserted on start of a single line start), "vsync" (asserted on start of a frame scan), "frame_start" (asserted when a single frame is captured), or "frame_done" (asserted when a single frame is done)

enable_status_line(enabled=True)

Enable or disable status line

get_acquisition_parameters()

Get acquisition parameters.

Return dictionary {name: value}

get_all_grabber_attribute_values()

Get a dictionary of all readable attributes.

The attributes types are autodetected, and some of the types of uncommon attributes may be misrepresented.

get_black_level_offset()

Get the black level offset

get_data_dimensions()

Get readout data dimensions (in pixels) as a tuple (width, height); take indexing mode into account

get_detector_size()

Get camera detector size (in pixels) as a tuple (width, height); as the camera does not provide this information, use the frame grabber parameters

get_device_info()

Get camera model data.

Return tuple (model, serial_number, grabber_info).

get_device_variable(key)

Get the value of a settings, status, or full info parameter

get_digital_gain()

Get the digital gain (0 for 1x, 1 for 2x, 2 for 4x)

get_exposure()

Get current exposure.

Note that the actual exposure might be different, depending on the exposure control mode.

get_exposure_control_mode()

Get the exposure control mode.

Return tuple (timing_mode, feature_mode), where timing_mode determines how the exposure and frame period are timed (continuous, external trigger control, internal control, etc.), and feature_mode controls additional features (permanent exposure, enhanced full well mode). See documentation for details.

get_frame_format()

Get format for the returned images.

Can be "list" (list of 2D arrays), "array" (a single 3D array), or "chunks" (list of 3D “chunk” arrays; supported for some cameras and provides the best performance).

get_frame_info_fields()

Get the names of frame info fields.

Applicable when frame info format (set by set_frame_info_format()) is "list" or "array".

get_frame_info_format()

Get format of the frame info.

Can be "namedtuple" (potentially nested named tuples; convenient to get particular values), "list" (flat list of values, with field names are given by get_frame_info_fields(); convenient for building a table), "array" (same as "list", but with a numpy array, which is easier to use for "chunks" frame format), or "dict" (flat dictionary with the same fields as the "list" format; more resilient to future format changes)

get_frame_info_period()

Get period of frame info acquisition.

Frame info might be skipped (set to None) except for frames which indices are divisible by period. Useful for certain cameras where acquiring frame info takes a lot of time and can reduce performance at higher frame rates. Note that this parameter can still be ignored (i.e., always set to 1) if the performance is not an issue for a given camera class.

get_frame_period()

Get frame period (time between two consecutive frames in the internal trigger mode).

Note that the actual frame period might be different, depending on the exposure control mode.

get_frame_timings()

Get acquisition timing.

Return tuple (exposure, frame_period).

get_frames_status()

Get acquisition and buffer status.

Return tuple (acquired, unread, skipped, size), where acquired is the total number of acquired frames, unread is the number of acquired but not read frames, skipped is the number of skipped (not read and then written over) frames, and buffer_size is the total buffer size (in frames).

get_full_info(include=0)

Get dict {name: value} containing full device information (including status and settings).

include specifies either a list of variables (only these variables are returned), a priority threshold (only values with the priority equal or higher are returned), or "all" (all available variables). Since the lowest priority is -10, setting include=-10 queries all available variables, which is equivalent to include="all".

get_full_status(include=0)

Get dict {name: value} containing the device status (including settings).

include specifies either a list of variables (only these variables are returned), a priority threshold (only values with the priority equal or higher are returned), or "all" (all available variables). Since the lowest priority is -10, setting include=-10 queries all available variables, which is equivalent to include="all".

get_grabber_attribute_value(attr, default=None, kind='auto')

Get value of an attribute with a given name or index.

If default is not None, return default if the attribute is not supported; otherwise, raise an error. kind is the attribute kind, and it can be "uint32", "uint64", "double", or "auto" (autodetect based on the stored list of attribute kinds).

get_grabber_detector_size()

Get camera detector size (in pixels) as a tuple (width, height)

get_grabber_roi()

Get current ROI.

Return tuple (hstart, hend, vstart, vend). hstart and hend specify horizontal image extent, vstart and vend specify vertical image extent (start is inclusive, stop is exclusive, starting from 0).

get_grabber_roi_limits(hbin=1, vbin=1)

Get the minimal and maximal ROI parameters.

Return tuple (hlim, vlim), where each element is in turn a limit 5-tuple (min, max, pstep, sstep, maxbin) with, correspondingly, minimal and maximal size, position and size step, and the maximal binning (fixed to 1 if not binning is allowed). In some cameras, the step and the minimal size depend on the binning, which can be supplied.

get_image_indexing()

Get indexing for the returned images.

Can be "rct" (first index row, second index column, rows counted from the top), "rcb" (same as "rc", rows counted from the bottom), "xyt" (first index column, second index row, rows counted from the top), or "xyb" (same as "xyt", rows counted from the bottom)

get_new_images_range()

Get the range of the new images.

Return tuple (first, last) with images range (first inclusive). If no images are available, return None. If some images were in the buffer were overwritten, exclude them from the range.

get_roi()

Get current ROI.

Return tuple (hstart, hend, vstart, vend).

get_roi_limits(hbin=1, vbin=1)

Get the minimal and maximal ROI parameters.

Return tuple (hlim, vlim), where each element is in turn a limit 5-tuple (min, max, pstep, sstep, maxbin) with, correspondingly, minimal and maximal size, position and size step, and the maximal binning (fixed to 1 if not binning is allowed). In some cameras, the step and the minimal size depend on the binning, which can be supplied.

get_serial_parameter(comm, kind='int', timeout=3.0)

get_serial_params()

Return serial parameters as a tuple (write_term, datatype)

get_settings(include=0)

Get dict {name: value} containing all the device settings.

include specifies either a list of variables (only these variables are returned), a priority threshold (only values with the priority equal or higher are returned), or "all" (all available variables). Since the lowest priority is -10, setting include=-10 queries all available variables, which is equivalent to include="all".

grab(nframes=1, frame_timeout=5.0, missing_frame='skip', return_info=False, buff_size=None)

Snap nframes images (with preset image read mode parameters)

buff_size determines buffer size (if None, use the default size). Timeout is specified for a single-frame acquisition, not for the whole acquisition time. missing_frame determines what to do with frames which have been lost: can be "none" (replacing them with None), "zero" (replacing them with zero-filled frame), or "skip" (skipping them, while still keeping total returned frames number to n). If return_info==True, return tuple (frames, infos), where infos is a list of frame info tuples (camera-dependent); if some frames are missing and missing_frame!="skip", the corresponding frame info is None.

is_acquisition_setup()

Check if acquisition is set up.

If the camera does not support separate acquisition setup, always return True.

is_opened()

Check if the device is connected

is_status_line_enabled()

Check if the status line is on

open()

Open connection to the camera

pausing_acquisition(clear=None, stop=True, setup_after=None, start_after=True, combine_nested=True)

Context manager which temporarily pauses acquisition during execution of with block.

Useful for applying certain settings which can’t be changed during the acquisition. If clear==True, clear acquisition in addition to stopping (by default, use the class default specified as _clear_pausing_acquisition attribute). If stop==True, stop the acquisition (if clear==True, stop regardless). If setup_after==True, setup the acquisition after pause if necessary (None means setup only if clearing was required). If start_after==True, start the acquisition after pause if necessary (None means start only if stopping was required). If combine_nested==True, then any nested pausing_acquisition calls will stop/clear acquisition as necessary, but won’t setup/start it again until this pausing_acquisition call is complete.

Yields tuple (acq_in_progress, acq_params), which indicates whether acquisition is currently in progress, and what are the current acquisition parameters.

read_multiple_images(rng=None, peek=False, missing_frame='skip', return_info=False, return_rng=False)

Read multiple images specified by rng (by default, all un-read images).

If rng is specified, it is a tuple (first, last) with images range (first inclusive). If no new frames are available, return an empty list; if no acquisition is running, return None. If peek==True, return images but not mark them as read. missing_frame determines what to do with frames which are out of range (missing or lost): can be "none" (replacing them with None), "zero" (replacing them with zero-filled frame), or "skip" (skipping them). If return_info==True, return tuple (frames, infos), where infos is a list of frame info tuples (camera-dependent, by default, only the frame index); if some frames are missing and missing_frame!="skip", the corresponding frame info is None. if return_rng==True, return the range covered resulting frames; if missing_frame=="skip", the range can be smaller than the supplied rng if some frames are skipped.

read_newest_image(peek=False, return_info=False)

Read the newest un-read image.

If no un-read frames are available, return None. If peek==True, return the image but not mark it as read. If return_info==True, return tuple (frame, info), where info is an info tuples (camera-dependent, see read_multiple_images()).

read_oldest_image(peek=False, return_info=False)

Read the oldest un-read image.

If no un-read frames are available, return None. If peek==True, return the image but not mark it as read. If return_info==True, return tuple (frame, info), where info is an info tuples (camera-dependent, see read_multiple_images()).

read_trigger(trig_type, trig_line=0, trig_pol='high')

Read current value of a trigger (input or output).

Parameters:

• trig_type (str) – trigger drive destination type; can be "ext", "rtsi", "iso_in", or "iso_out"

• trig_line (int) – trigger line number

• trig_pol (str) – trigger polarity; can be "high" or "low"

reset()

Reset connection to the camera

send_software_trigger()

Send software trigger signal

serial_flush()

Flush CameraLink serial port

serial_query(query, timeout=3.0)

serial_read(n, timeout=3.0, datatype=None)

Read specified number of bytes from CameraLink serial port.

Parameters:

• n – number of bytes to read

• timeout – operation timeout (in seconds)

• datatype – return datatype; can be "bytes" (return raw bytes), or "str" (convert into UTF-8 string) if None, use the value set up using setup_serial_params() (by default, "bytes")

serial_readline(timeout=3.0, datatype=None, maxn=1024)

Read bytes from CameraLink serial port until the termination character (defined in camera file) is encountered.

Parameters:

• timeout – operation timeout (in seconds)

• datatype – return datatype; can be "bytes" (return raw bytes), or "str" (convert into UTF-8 string) if None, use the value set up using setup_serial_params() (by default, "bytes")

• maxn – maximal number of bytes to read

serial_write(msg, timeout=3.0, term=None)

Write message into CameraLink serial port.

Parameters:

• timeout – operation timeout (in seconds)

• term – additional write terminator character to add to the message; if None, use the value set up using setup_serial_params() (by default, no additional terminator)

set_black_level_offset(offset)

Set the black level offset

set_device_variable(key, value)

Set the value of a settings parameter

set_digital_gain(gain)

Get the digital gain (0 for 1x, 1 for 2x, 2 for 4x)

set_exposure(exposure, setup_mode=True)

Set current exposure.

Note that the actual exposure might be different, depending on the exposure control mode. If setup_mode==True, automatically set the exposure mode to take the given exposure value into account.

set_exposure_control_mode(timing_mode=None, feature_mode=None)

Set the exposure control mode.

timing_mode determines how the exposure and frame period are timed (continuous, external trigger control, internal control, etc.), and feature_mode controls additional features (permanent exposure, enhanced full well mode). See documentation for details.

set_frame_format(fmt)

Set format for the returned images.

Can be "list" (list of 2D arrays), "array" (a single 3D array), "chunks" (list of 3D “chunk” arrays; supported for some cameras and provides the best performance), or "try_chunks" (same as "chunks", but if chunks are not supported, set to "list" instead). If format is "chunks" and chunks are not supported by the camera, it results in one frame per chunk. Note that if the format is set to "array" or "chunks", the frame info format is also automatically set to "array". If the format is set to "chunks", then the image info is also returned in chunks form (list of 2D info arrays with the same length as the corresponding frame chunks).

set_frame_info_format(fmt, include_fields=None)

Set format of the frame info.

Can be "namedtuple" (potentially nested named tuples; convenient to get particular values), "list" (flat list of values, with field names are given by get_frame_info_fields(); convenient for building a table), "array" (same as "list", but with a numpy array, which is easier to use for "chunks" frame format), or "dict" (flat dictionary with the same fields as the "list" format; more resilient to future format changes) If include_fields is not None, it specifies the fields included for non-"tuple" formats; note that order or include_fields is ignored, and the resulting fields are always ordered same as in the original.

set_frame_info_period(period=1)

Set period of frame info acquisition.

Frame info might be skipped (set to None) except for frames which indices are divisible by period. Useful for certain cameras where acquiring frame info takes a lot of time and can reduce performance at higher frame rates. Note that this parameter can still be ignored (i.e., always set to 1) if the performance is not an issue for a given camera class.

set_frame_period(frame_period, setup_mode=True)

Set frame period (time between two consecutive frames in the internal trigger mode).

Note that the actual frame period might be different, depending on the exposure control mode. If setup_mode==True, automatically set the exposure mode to take the given exposure value into account.

set_grabber_attribute_value(attr, value, kind='int32')

Set value of an attribute with a given name or index.

kind is the attribute kind, and it can be "uint32", "uint64", "double", or "auto" (autodetect based on the stored list of attribute kinds).

set_grabber_roi(hstart=0, hend=None, vstart=0, vend=None)

Setup camera ROI.

hstart and hend specify horizontal image extent, vstart and vend specify vertical image extent (start is inclusive, stop is exclusive, starting from 0). By default, all non-supplied parameters take extreme values (0 for start, maximal for end).

set_image_indexing(indexing)

Set up indexing for the returned images.

Can be "rct" (first index row, second index column, rows counted from the top), "rcb" (same as "rc", rows counted from the bottom), "xyt" (first index column, second index row, rows counted from the top), or "xyb" (same as "xyt", rows counted from the bottom)

set_roi(hstart=0, hend=None, vstart=0, vend=None)

Setup camera ROI.

By default, all non-supplied parameters take extreme values.

set_serial_parameter(comm, value)

setup_acquisition(mode='sequence', nframes=100)

Setup acquisition mode.

mode can be either "snap" (single frame or a fixed number of frames) or "sequence" (continuous acquisition). (note that IMAQCamera.acquisition_in_progress() would still return True in this case, even though new frames are no longer acquired). nframes sets up number of frame buffers.

setup_serial_params(write_term='', datatype='bytes')

Setup default serial communication parameters.

Parameters:

• write_term – default terminator character to be added to the sent messages

• datatype – type of the result of read commands; can be "bytes" (return raw bytes), or "str" (convert into UTF-8 string)

snap(timeout=5.0, return_info=False)

Snap a single frame

start_acquisition(*args, **kwargs)

Start acquisition.

Can take the same keyword parameters as :meth:``setup_acquisition. If the acquisition is not set up yet, set it up using the supplied parameters (use default of setup_acquisition(),if the parameter is None). Otherwise, if any supplied parameters are different from the current ones, change them and reset the acquisition.

stop_acquisition()

Stop acquisition

wait_for_frame(since='lastread', nframes=1, timeout=20.0, error_on_stopped=False)

Wait for one or several new camera frames.

since specifies the reference point for waiting to acquire nframes frames; can be “lastread”`` (from the last read frame), "lastwait" (wait for the last successful wait_for_frame() call), "now" (from the start of the current call), or "start" (from the acquisition start, i.e., wait until nframes frames have been acquired). timeout can be either a number, None (infinite timeout), or a tuple (timeout, frame_timeout), in which case the call times out if the total time exceeds timeout, or a single frame wait exceeds frame_timeout. If the call times out, raise TimeoutError. If error_on_stopped==True and the acquisition is not running, raise Error; otherwise, simply return False without waiting.

pylablib.devices.AlliedVision.Bonito.check_grabber_association(cam)

Check if the given IMAQ frame grabber corresponds to Bonito camera.

cam should be an opened instance of IMAQCamera.

class pylablib.devices.AlliedVision.Bonito.TStatusLine(framestamp)

Bases: tuple

framestamp

pylablib.devices.AlliedVision.Bonito.get_status_lines(frames)

Get frame info from the binary status line.

frames can be 2D array (one frame), 3D array (stack of frames, first index is frame number), or list of 1D or 2D arrays. Assume that the status line is present; if it isn’t, the returned frame info will be a random noise. Return a 1D or 2D numpy array, where the first axis (if present) is the frame number, and the last is the status line entry.

class pylablib.devices.AlliedVision.Bonito.BonitoStatusLineChecker

Bases: StatusLineChecker

get_framestamp(frames)

Get framestamps from status lines in the given frames

check_indices(indices, step=1)

Check if indices are consistent with the given step

Module contents