pylablib.devices.SiliconSoftware package
Submodules
pylablib.devices.SiliconSoftware.fgrab module
- class pylablib.devices.SiliconSoftware.fgrab.TBoardInfo(name, full_name, serial)
Bases:
tuple
- full_name
- name
- serial
- pylablib.devices.SiliconSoftware.fgrab.TFullBoardInfo
alias of
TBoardInfo
- pylablib.devices.SiliconSoftware.fgrab.get_board_info(board, full_desc=False)[source]
Get board info for a given index (starting from 0)
- pylablib.devices.SiliconSoftware.fgrab.list_boards(full_desc=False)[source]
List all boards available through Silicon Software interface
- pylablib.devices.SiliconSoftware.fgrab.get_boards_number()[source]
List number of connected Silicon Software boards
- class pylablib.devices.SiliconSoftware.fgrab.TFullAppletInfo(name, uid, desc, category, platform, tags, version, path, file, flags, info)
Bases:
tuple
- category
- desc
- file
- flags
- info
- name
- path
- platform
- tags
- uid
- version
- pylablib.devices.SiliconSoftware.fgrab.list_applets(board, full_desc=False, valid=True, on_board=False)[source]
List all applets available for this board.
board is the board index (starting from 0) given by its position in the list returned by
list_boards()
. Iffull_desc==True
, return full description for each applet; otherwise, return only name and file name. Ifvalid==True
, list only valid and compatible applets; otherwise, list all applets. Ifon_board==True
, list applets running on board; otherwise, list all applets contained in the system.
- pylablib.devices.SiliconSoftware.fgrab.get_applet_info(board, **kwargs)[source]
Return full information for an applet with the given parameters (e.g., name, or full path)
- class pylablib.devices.SiliconSoftware.fgrab.FGrabAttribute(fg, aid, port=0, system=False, idx=None)[source]
Bases:
object
Object representing an Silicon Software frame grabber parameter.
Allows to query and set values and get additional information. Usually created automatically by an :class:`` instance, but could be created manually.
- Parameters:
fg – opened frame grabber handle
aid – attribute ID
port – camera port within the frame grabber
system – if
True
, this is a system attribute; otherwise, it is a camera attributeidx – if
system==True
and fg isNone
, it can specify a board index for a not yet opened grabber
- name
attribute name
- kind
attribute kind; can be
"i32"
,"i64"
,"u32"
,"u64"
,"f64"
, or"str"
- ivalues
list of possible integer values for enum attributes
- values
list of possible text values for enum attributes
- labels
dict
{label: index}
which shows all possible values of an enumerated attribute and their corresponding numerical values
- ilabels
dict
{index: label}
which shows labels corresponding to numerical values of an enumerated attribute
- update_limits()[source]
Update minimal and maximal attribute limits and return tuple
(min, max, inc)
- class pylablib.devices.SiliconSoftware.fgrab.TDeviceInfo(applet_info, system_info, software_version)
Bases:
tuple
- applet_info
- software_version
- system_info
- class pylablib.devices.SiliconSoftware.fgrab.TFrameInfo(frame_index, framestamp, timestamp, timestamp_long)
Bases:
tuple
- frame_index
- framestamp
- timestamp
- timestamp_long
- class pylablib.devices.SiliconSoftware.fgrab.SiliconSoftwareFrameGrabber(siso_board=0, siso_applet=None, siso_port=0, siso_detector_size=None, do_open=True, **kwargs)[source]
Bases:
IGrabberAttributeCamera
,IROICamera
Generic Silicon Software frame grabber interface.
Compared to
SiliconSoftwareCamera
, has more permissive initialization arguments, which simplifies its use as a base class for expanded cameras.- Parameters:
siso_board – board index, starting from 0; available boards can be learned by
list_boards()
siso_applet – applet name, which can be learned by
list_applets()
; usually, a simple applet like"DualLineGray16"
or"MediumLineGray16
are most appropriate; can be either an applet name, or a direct path to the applet DLLsiso_port – port number, if several ports are supported by the grabber and the applet
siso_detector_size – if not
None
, can specify the maximal detector size; by default, use the maximal available for the frame grabber (usually, 16384x16384)
- Error = <Mock name='mock.SiliconSoftwareError' id='139946298242000'>
- TimeoutError = <Mock spec='str' id='139946298244112'>
- get_all_grabber_attribute_values(root='', **kwargs)[source]
Get values of all frame grabber attributes with the given root.
Additional arguments are passed to
get_value
methods of individual attributes.
- set_all_grabber_attribute_values(settings, root='', **kwargs)[source]
Set values of all frame grabber attributes with the given root.
Additional arguments are passed to
set_value
methods of individual attributes.
- get_device_info()[source]
Get camera model data.
Return tuple
(applet_info, system_info, software_version)
with the board serial number and an the interface type (e.g.,"1430"
for NI PCIe-1430)
- get_grabber_detector_size()
Get camera detector size (in pixels) as a tuple
(width, height)
- get_roi()[source]
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()
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).
- set_roi(hstart=0, hend=None, vstart=0, vend=None)[source]
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_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).
- get_roi_limits(hbin=1, vbin=1)[source]
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_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.
- class BufferManager(fg, siso_port)[source]
Bases:
object
Frame buffer manager which controls and schedules the buffer and the buffer copying loop
- start_loop(run_nframes)[source]
Start the copying loop and, optionally, run the acquisition loop with the given number of frames
- setup_camlink_pixel_format(bits_per_pixel=8, taps=1, output_fmt=None, fmt=None, bit_alignment='right_custom')[source]
Set up CameraLink pixel format.
If fmt is
None
, use supplied bits_per_pixel (8, 10, 12, 14, or 16) and taps (1 or 2) to figure out the format; otherwise, fmt should be a numerical (e.g.,210
) or string (e.g.,"FG_CL_MEDIUM_10_BIT"
) format. output_fmt specifies the result frame format; ifNone
, use grayscale with the given bits_per_pixel if fmt isNone
, or 16 bit grayscale otherwise. bit_alignment can specify the alignment of the resulting data (applicable whenbits_per_pixel
is not divisible by 8); can be"left"
,"right"
,"right_custom"
(explicitly calculate and set the number of bits to shift by whenever possible; this solves some issues on ME5 cards), or an integer specifying the number of bits to shift.
- get_available_camlink_pixel_formats()[source]
Get all available CamLink pixel formats and the output pixel formats as a tuple of 2 lists
- setup_acquisition(mode='sequence', nframes=100)[source]
Setup acquisition mode.
mode can be either
"snap"
(single frame or a fixed number of frames) or"sequence"
(continuous acquisition). (note thatIMAQCamera.acquisition_in_progress()
would still returnTrue
in this case, even though new frames are no longer acquired). nframes sets up number of frame buffers.
- start_acquisition(*args, **kwargs)[source]
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 isNone
). Otherwise, if any supplied parameters are different from the current ones, change them and reset the acquisition.
- FrameTransferError
alias of
DefaultFrameTransferError
- apply_settings(settings)
Apply the settings.
settings is the dict
{name: value}
of the device available settings. Non-applicable settings are ignored.
- get_acquisition_parameters()
Get acquisition parameters.
Return dictionary
{name: value}
- get_all_grabber_attributes(copy=False)
Return a dictionary of all available frame grabber grabber_attributes.
If
copy==True
, copy the dictionary; otherwise, return the internal dictionary structure (should not be modified).
- 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 byget_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)
, whereacquired
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, andbuffer_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, settinginclude=-10
queries all available variables, which is equivalent toinclude="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, settinginclude=-10
queries all available variables, which is equivalent toinclude="all"
.
- get_grabber_attribute(name, error_on_missing=True)
Get the camera attribute with the given name
- get_grabber_attribute_value(name, error_on_missing=True, default=None, **kwargs)
Get value of a frame grabber attribute with the given name.
If the value doesn’t exist and
error_on_missing==True
, raise error; otherwise, return default. If default is notNone
, automatically assume thaterror_on_missing==False
. If name points at a dictionary branch, return a dictionary with all values in this branch. Additional arguments are passed toget_value
methods of the individual attribute.
- 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, returnNone
. 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, settinginclude=-10
queries all available variables, which is equivalent toinclude="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 withNone
),"zero"
(replacing them with zero-filled frame), or"skip"
(skipping them, while still keeping total returned frames number to n). Ifreturn_info==True
, return tuple(frames, infos)
, whereinfos
is a list of frame info tuples (camera-dependent); if some frames are missing andmissing_frame!="skip"
, the corresponding frame info isNone
.
- is_acquisition_setup()
Check if acquisition is set up.
If the camera does not support separate acquisition setup, always return
True
.
- 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). Ifstop==True
, stop the acquisition (ifclear==True
, stop regardless). Ifsetup_after==True
, setup the acquisition after pause if necessary (None
means setup only if clearing was required). Ifstart_after==True
, start the acquisition after pause if necessary (None
means start only if stopping was required). Ifcombine_nested==True
, then any nestedpausing_acquisition
calls will stop/clear acquisition as necessary, but won’t setup/start it again until thispausing_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, returnNone
. Ifpeek==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 withNone
),"zero"
(replacing them with zero-filled frame), or"skip"
(skipping them). Ifreturn_info==True
, return tuple(frames, infos)
, whereinfos
is a list of frame info tuples (camera-dependent, by default, only the frame index); if some frames are missing andmissing_frame!="skip"
, the corresponding frame info isNone
. ifreturn_rng==True
, return the range covered resulting frames; ifmissing_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
. Ifpeek==True
, return the image but not mark it as read. Ifreturn_info==True
, return tuple(frame, info)
, whereinfo
is an info tuples (camera-dependent, seeread_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
. Ifpeek==True
, return the image but not mark it as read. Ifreturn_info==True
, return tuple(frame, info)
, whereinfo
is an info tuples (camera-dependent, seeread_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 byget_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 notNone
, 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_grabber_attribute_value(name, value, error_on_missing=True, **kwargs)
Set value of a frame grabber attribute with the given name.
If the value doesn’t exist and
error_on_missing==True
, raise error; otherwise, do nothing. If name points at a dictionary branch, set all values in this branch (in this case value must be a dictionary). Additional arguments are passed toset_value
methods of the individual attribute.
- 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
- 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 successfulwait_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 exceedstimeout
, or a single frame wait exceedsframe_timeout
. If the call times out, raiseTimeoutError
. Iferror_on_stopped==True
and the acquisition is not running, raiseError
; otherwise, simply returnFalse
without waiting.
- class pylablib.devices.SiliconSoftware.fgrab.SiliconSoftwareCamera(board, applet=None, port=0, detector_size=None)[source]
Bases:
SiliconSoftwareFrameGrabber
Generic Silicon Software frame grabber interface.
- Parameters:
board – board index, starting from 0; available boards can be learned by
list_boards()
applet – applet name, which can be learned by
list_applets()
; usually, a simple applet like"DualLineGray16"
or"MediumLineGray16
are most appropriate; can be either an applet name, or a direct path to the applet DLLport – port number, if several ports are supported by the camera and the applet
detector_size – if not
None
, can specify the maximal detector size; by default, use the maximal available for the frame grabber (usually, 16384x16384)
- class BufferManager(fg, siso_port)
Bases:
object
Frame buffer manager which controls and schedules the buffer and the buffer copying loop
- allocate(nframes, frame_size)
Allocate and schedule buffers with the given number and size
- deallocate()
Deallocate and remove the buffers
- get_frames_data(idx, nframes=1)
Get buffer chunk addresses for the given number of frames starting from the given index
- get_status()
Get acquisition status.
Return tuple
(nread, oldest_valid_buffer, nacq, debug_info)
- start_loop(run_nframes)
Start the copying loop and, optionally, run the acquisition loop with the given number of frames
- stop_loop()
Stop the copying loop
- Error = <Mock name='mock.SiliconSoftwareError' id='139946298242000'>
- FrameTransferError
alias of
DefaultFrameTransferError
- TimeoutError = <Mock spec='str' id='139946298244112'>
- 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
- close()
Close connection to the camera
- get_acquisition_parameters()
Get acquisition parameters.
Return dictionary
{name: value}
- get_all_grabber_attribute_values(root='', **kwargs)
Get values of all frame grabber attributes with the given root.
Additional arguments are passed to
get_value
methods of individual attributes.
- get_all_grabber_attributes(copy=False)
Return a dictionary of all available frame grabber grabber_attributes.
If
copy==True
, copy the dictionary; otherwise, return the internal dictionary structure (should not be modified).
- get_available_camlink_pixel_formats()
Get all available CamLink pixel formats and the output pixel formats as a tuple of 2 lists
- get_camlink_pixel_format()
Get CamLink pixel format and the output pixel format as a tuple
- 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)
- get_device_info()
Get camera model data.
Return tuple
(applet_info, system_info, software_version)
with the board serial number and an the interface type (e.g.,"1430"
for NI PCIe-1430)
- 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 byget_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)
, whereacquired
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, andbuffer_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, settinginclude=-10
queries all available variables, which is equivalent toinclude="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, settinginclude=-10
queries all available variables, which is equivalent toinclude="all"
.
- get_genicam_info_xml()
Get description in Genicam-compatible XML format
- get_grabber_attribute(name, error_on_missing=True)
Get the camera attribute with the given name
- get_grabber_attribute_value(name, error_on_missing=True, default=None, **kwargs)
Get value of a frame grabber attribute with the given name.
If the value doesn’t exist and
error_on_missing==True
, raise error; otherwise, return default. If default is notNone
, automatically assume thaterror_on_missing==False
. If name points at a dictionary branch, return a dictionary with all values in this branch. Additional arguments are passed toget_value
methods of the individual attribute.
- 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, returnNone
. 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)
. hstart and hend specify horizontal image extent, vstart and vend specify vertical image extent (start is inclusive, stop is exclusive, starting from 0).
- 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_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, settinginclude=-10
queries all available variables, which is equivalent toinclude="all"
.
- get_system_info()
Get the dictionary with all system information parameters
- 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 withNone
),"zero"
(replacing them with zero-filled frame), or"skip"
(skipping them, while still keeping total returned frames number to n). Ifreturn_info==True
, return tuple(frames, infos)
, whereinfos
is a list of frame info tuples (camera-dependent); if some frames are missing andmissing_frame!="skip"
, the corresponding frame info isNone
.
- 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
- 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). Ifstop==True
, stop the acquisition (ifclear==True
, stop regardless). Ifsetup_after==True
, setup the acquisition after pause if necessary (None
means setup only if clearing was required). Ifstart_after==True
, start the acquisition after pause if necessary (None
means start only if stopping was required). Ifcombine_nested==True
, then any nestedpausing_acquisition
calls will stop/clear acquisition as necessary, but won’t setup/start it again until thispausing_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, returnNone
. Ifpeek==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 withNone
),"zero"
(replacing them with zero-filled frame), or"skip"
(skipping them). Ifreturn_info==True
, return tuple(frames, infos)
, whereinfos
is a list of frame info tuples (camera-dependent, by default, only the frame index); if some frames are missing andmissing_frame!="skip"
, the corresponding frame info isNone
. ifreturn_rng==True
, return the range covered resulting frames; ifmissing_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
. Ifpeek==True
, return the image but not mark it as read. Ifreturn_info==True
, return tuple(frame, info)
, whereinfo
is an info tuples (camera-dependent, seeread_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
. Ifpeek==True
, return the image but not mark it as read. Ifreturn_info==True
, return tuple(frame, info)
, whereinfo
is an info tuples (camera-dependent, seeread_multiple_images()
).
- set_all_grabber_attribute_values(settings, root='', **kwargs)
Set values of all frame grabber attributes with the given root.
Additional arguments are passed to
set_value
methods of individual attributes.
- 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 byget_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 notNone
, 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_merge(frame_merge=1)
- set_grabber_attribute_value(name, value, error_on_missing=True, **kwargs)
Set value of a frame grabber attribute with the given name.
If the value doesn’t exist and
error_on_missing==True
, raise error; otherwise, do nothing. If name points at a dictionary branch, set all values in this branch (in this case value must be a dictionary). Additional arguments are passed toset_value
methods of the individual attribute.
- 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.
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).
- 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 thatIMAQCamera.acquisition_in_progress()
would still returnTrue
in this case, even though new frames are no longer acquired). nframes sets up number of frame buffers.
- setup_camlink_pixel_format(bits_per_pixel=8, taps=1, output_fmt=None, fmt=None, bit_alignment='right_custom')
Set up CameraLink pixel format.
If fmt is
None
, use supplied bits_per_pixel (8, 10, 12, 14, or 16) and taps (1 or 2) to figure out the format; otherwise, fmt should be a numerical (e.g.,210
) or string (e.g.,"FG_CL_MEDIUM_10_BIT"
) format. output_fmt specifies the result frame format; ifNone
, use grayscale with the given bits_per_pixel if fmt isNone
, or 16 bit grayscale otherwise. bit_alignment can specify the alignment of the resulting data (applicable whenbits_per_pixel
is not divisible by 8); can be"left"
,"right"
,"right_custom"
(explicitly calculate and set the number of bits to shift by whenever possible; this solves some issues on ME5 cards), or an integer specifying the number of bits to shift.
- 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 isNone
). 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 successfulwait_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 exceedstimeout
, or a single frame wait exceedsframe_timeout
. If the call times out, raiseTimeoutError
. Iferror_on_stopped==True
and the acquisition is not running, raiseError
; otherwise, simply returnFalse
without waiting.