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read_cam_parT_read_cam_parReadCamParread_cam_parReadCamParReadCamPar (Operator)

Name

read_cam_parT_read_cam_parReadCamParread_cam_parReadCamParReadCamPar — Read internal camera parameters from a file.

Signature

read_cam_par( : : CamParFile : CameraParam)

Herror T_read_cam_par(const Htuple CamParFile, Htuple* CameraParam)

Herror read_cam_par(const HTuple& CamParFile, HTuple* CameraParam)

void ReadCamPar(const HTuple& CamParFile, HTuple* CameraParam)

void HCamPar::ReadCamPar(const HString& CamParFile)

void HCamPar::ReadCamPar(const char* CamParFile)

void HOperatorSetX.ReadCamPar(
[in] VARIANT CamParFile, [out] VARIANT* CameraParam)

VARIANT HCamParX.ReadCamPar([in] BSTR CamParFile)

static void HOperatorSet.ReadCamPar(HTuple camParFile, out HTuple cameraParam)

void HCamPar.ReadCamPar(string camParFile)

Description

read_cam_parread_cam_parReadCamParread_cam_parReadCamParReadCamPar reads the internal camera parameters CameraParamCameraParamCameraParamCameraParamCameraParamcameraParam from a file with name CamParFileCamParFileCamParFileCamParFileCamParFilecamParFile. The file must have been written by write_cam_parwrite_cam_parWriteCamParwrite_cam_parWriteCamParWriteCamPar.

The default HALCON file extension for the camera parameters is 'dat'.

The number of values in CameraParamCameraParamCameraParamCameraParamCameraParamcameraParam depends on the specified camera type. See the description of set_calib_data_cam_paramset_calib_data_cam_paramSetCalibDataCamParamset_calib_data_cam_paramSetCalibDataCamParamSetCalibDataCamParam for a list of values and calibrate_camerascalibrate_camerasCalibrateCamerascalibrate_camerasCalibrateCamerasCalibrateCameras for details on camera types and camera parameters.

Parallelization

Parameters

CamParFileCamParFileCamParFileCamParFileCamParFilecamParFile (input_control)  filename.read → HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

File name of internal camera parameters.

Default value: 'campar.dat' "campar.dat" "campar.dat" "campar.dat" "campar.dat" "campar.dat"

List of values: 'campar.dat'"campar.dat""campar.dat""campar.dat""campar.dat""campar.dat", 'campar.final'"campar.final""campar.final""campar.final""campar.final""campar.final", 'campar.initial'"campar.initial""campar.initial""campar.initial""campar.initial""campar.initial"

File extension: .dat

CameraParamCameraParamCameraParamCameraParamCameraParamcameraParam (output_control)  campar → HCamPar, HTupleHTupleHTupleHCamParX, VARIANTHtuple (real / integer / string) (double / int / long / string) (double / Hlong / HString) (double / Hlong / char*) (double / Hlong / BSTR) (double / Hlong / char*)

Internal camera parameters.

Example (HDevelop)

* Create sample camera parameters and write them to file.
gen_cam_par_area_scan_division (0.01, -731, 5.2e-006, 5.2e-006, \
                                654, 519, 1280, 1024, CameraParamTmp)
write_cam_par (CameraParamTmp, 'campar_tmp.dat')
* Read internal camera parameters.
read_cam_par('campar_tmp.dat', CameraParam)

Example (HDevelop)

* Create sample camera parameters and write them to file.
gen_cam_par_area_scan_division (0.01, -731, 5.2e-006, 5.2e-006, \
                                654, 519, 1280, 1024, CameraParamTmp)
write_cam_par (CameraParamTmp, 'campar_tmp.dat')
* Read internal camera parameters.
read_cam_par('campar_tmp.dat', CameraParam)

Example (HDevelop)

* Create sample camera parameters and write them to file.
gen_cam_par_area_scan_division (0.01, -731, 5.2e-006, 5.2e-006, \
                                654, 519, 1280, 1024, CameraParamTmp)
write_cam_par (CameraParamTmp, 'campar_tmp.dat')
* Read internal camera parameters.
read_cam_par('campar_tmp.dat', CameraParam)

Example (C++ (HALCON 5.0-10.0))

HTuple CameraParamTmp, CameraParam;
// Create sample camera parameters and write them to file.
gen_cam_par_area_scan_division (0.01, -731, 5.2e-006, 5.2e-006,
                                654, 519, 1280, 1024, &CameraParamTmp);
write_cam_par (CameraParamTmp, 'campar_tmp.dat');
// Read internal camera parameters.
read_cam_par("campar_tmp.dat", &CameraParam);

Example (HDevelop)

* Create sample camera parameters and write them to file.
gen_cam_par_area_scan_division (0.01, -731, 5.2e-006, 5.2e-006, \
                                654, 519, 1280, 1024, CameraParamTmp)
write_cam_par (CameraParamTmp, 'campar_tmp.dat')
* Read internal camera parameters.
read_cam_par('campar_tmp.dat', CameraParam)

Example (HDevelop)

* Create sample camera parameters and write them to file.
gen_cam_par_area_scan_division (0.01, -731, 5.2e-006, 5.2e-006, \
                                654, 519, 1280, 1024, CameraParamTmp)
write_cam_par (CameraParamTmp, 'campar_tmp.dat')
* Read internal camera parameters.
read_cam_par('campar_tmp.dat', CameraParam)

Result

read_cam_parread_cam_parReadCamParread_cam_parReadCamParReadCamPar returns 2 (H_MSG_TRUE) if all parameter values are correct and the file has been read successfully. If necessary an exception is raised.

Possible Successors

find_marks_and_posefind_marks_and_poseFindMarksAndPosefind_marks_and_poseFindMarksAndPoseFindMarksAndPose, sim_caltabsim_caltabSimCaltabsim_caltabSimCaltabSimCaltab, gen_caltabgen_caltabGenCaltabgen_caltabGenCaltabGenCaltab, disp_caltabdisp_caltabDispCaltabdisp_caltabDispCaltabDispCaltab, camera_calibrationcamera_calibrationCameraCalibrationcamera_calibrationCameraCalibrationCameraCalibration

See also

find_caltabfind_caltabFindCaltabfind_caltabFindCaltabFindCaltab, find_marks_and_posefind_marks_and_poseFindMarksAndPosefind_marks_and_poseFindMarksAndPoseFindMarksAndPose, camera_calibrationcamera_calibrationCameraCalibrationcamera_calibrationCameraCalibrationCameraCalibration, disp_caltabdisp_caltabDispCaltabdisp_caltabDispCaltabDispCaltab, sim_caltabsim_caltabSimCaltabsim_caltabSimCaltabSimCaltab, write_cam_parwrite_cam_parWriteCamParwrite_cam_parWriteCamParWriteCamPar, write_posewrite_poseWritePosewrite_poseWritePoseWritePose, read_poseread_poseReadPoseread_poseReadPoseReadPose, project_3d_pointproject_3d_pointProject3dPointproject_3d_pointProject3dPointProject3dPoint, get_line_of_sightget_line_of_sightGetLineOfSightget_line_of_sightGetLineOfSightGetLineOfSight

Module

Foundation

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HALCON Operator Reference 13.0.4 Copyright © 1996-2019 MVTec Software GmbH