OpenCV: C API

| OpenCV 3.4.2 Open Source Computer Vision

Classes | Macros | Typedefs | Enumerations | Functions
C API
Camera Calibration and 3D Reconstruction

## Classes
struct | CvStereoBMState

## Macros
#define | CV_CALIB_CB_ADAPTIVE_THRESH 1
#define | CV_CALIB_CB_FAST_CHECK 8
#define | CV_CALIB_CB_FILTER_QUADS 4
#define | CV_CALIB_CB_NORMALIZE_IMAGE 2
#define | CV_CALIB_FIX_ASPECT_RATIO 2
#define | CV_CALIB_FIX_FOCAL_LENGTH 16
#define | CV_CALIB_FIX_INTRINSIC 256
#define | CV_CALIB_FIX_K1 32
#define | CV_CALIB_FIX_K2 64
#define | CV_CALIB_FIX_K3 128
#define | CV_CALIB_FIX_K4 2048
#define | CV_CALIB_FIX_K5 4096
#define | CV_CALIB_FIX_K6 8192
#define | CV_CALIB_FIX_PRINCIPAL_POINT 4
#define | CV_CALIB_FIX_S1_S2_S3_S4 65536
#define | CV_CALIB_FIX_TANGENT_DIST 2097152
#define | CV_CALIB_FIX_TAUX_TAUY 524288
#define | CV_CALIB_NINTRINSIC 18
#define | CV_CALIB_RATIONAL_MODEL 16384
#define | CV_CALIB_SAME_FOCAL_LENGTH 512
#define | CV_CALIB_THIN_PRISM_MODEL 32768
#define | CV_CALIB_TILTED_MODEL 262144
#define | CV_CALIB_USE_INTRINSIC_GUESS 1
#define | CV_CALIB_ZERO_DISPARITY 1024
#define | CV_CALIB_ZERO_TANGENT_DIST 8
#define | CV_FM_7POINT 1
#define | CV_FM_8POINT 2
#define | CV_FM_LMEDS CV_LMEDS
#define | CV_FM_LMEDS_ONLY CV_LMEDS
#define | CV_FM_RANSAC CV_RANSAC
#define | CV_FM_RANSAC_ONLY CV_RANSAC
#define | CV_LMEDS 4
#define | CV_RANSAC 8
#define | CV_STEREO_BM_BASIC 0
#define | CV_STEREO_BM_FISH_EYE 1
#define | CV_STEREO_BM_NARROW 2
#define | CV_STEREO_BM_NORMALIZED_RESPONSE 0
#define | CV_STEREO_BM_XSOBEL 1

## Typedefs
typedef struct CvPOSITObject | CvPOSITObject

## Enumerations
enum | { CV_ITERATIVE = 0, CV_EPNP = 1, CV_P3P = 2, CV_DLS = 3 }

## Functions
void | cvCalcMatMulDeriv (const CvMat *A, const CvMat *B, CvMat *dABdA, CvMat *dABdB)
double | cvCalibrateCamera2 (const CvMat *object_points, const CvMat *image_points, const CvMat *point_counts, CvSize image_size, CvMat *camera_matrix, CvMat *distortion_coeffs, CvMat *rotation_vectors=NULL, CvMat *translation_vectors=NULL, int flags=0, CvTermCriteria term_crit=cvTermCriteria(CV_TERMCRIT_ITER+CV_TERMCRIT_EPS, 30, DBL_EPSILON))
void | cvCalibrationMatrixValues (const CvMat *camera_matrix, CvSize image_size, double aperture_width=0, double aperture_height=0, double *fovx=NULL, double *fovy=NULL, double *focal_length=NULL, CvPoint2D64f *principal_point=NULL, double *pixel_aspect_ratio=NULL)
int | cvCheckChessboard (IplImage *src, CvSize size)
void | cvComposeRT (const CvMat *_rvec1, const CvMat *_tvec1, const CvMat *_rvec2, const CvMat *_tvec2, CvMat *_rvec3, CvMat *_tvec3, CvMat *dr3dr1=0, CvMat *dr3dt1=0, CvMat *dr3dr2=0, CvMat *dr3dt2=0, CvMat *dt3dr1=0, CvMat *dt3dt1=0, CvMat *dt3dr2=0, CvMat *dt3dt2=0)
void | cvComputeCorrespondEpilines (const CvMat *points, int which_image, const CvMat *fundamental_matrix, CvMat *correspondent_lines)
void | cvConvertPointsHomogeneous (const CvMat *src, CvMat *dst)
void | cvCorrectMatches (CvMat *F, CvMat *points1, CvMat *points2, CvMat *new_points1, CvMat *new_points2)
CvPOSITObject * | cvCreatePOSITObject (CvPoint3D32f *points, int point_count)
CvStereoBMState * | cvCreateStereoBMState (int preset=0, int numberOfDisparities=0)
void | cvDecomposeProjectionMatrix (const CvMat *projMatr, CvMat *calibMatr, CvMat *rotMatr, CvMat *posVect, CvMat *rotMatrX=NULL, CvMat *rotMatrY=NULL, CvMat *rotMatrZ=NULL, CvPoint3D64f *eulerAngles=NULL)
void | cvDrawChessboardCorners (CvArr *image, CvSize pattern_size, CvPoint2D32f *corners, int count, int pattern_was_found)
int | cvFindChessboardCorners (const void *image, CvSize pattern_size, CvPoint2D32f *corners, int *corner_count=NULL, int flags=1+2)
void | cvFindExtrinsicCameraParams2 (const CvMat *object_points, const CvMat *image_points, const CvMat *camera_matrix, const CvMat *distortion_coeffs, CvMat *rotation_vector, CvMat *translation_vector, int use_extrinsic_guess=0)
int | cvFindFundamentalMat (const CvMat *points1, const CvMat *points2, CvMat *fundamental_matrix, int method=8, double param1=3., double param2=0.99, CvMat *status=NULL)
int | cvFindHomography (const CvMat *src_points, const CvMat *dst_points, CvMat *homography, int method=0, double ransacReprojThreshold=3, CvMat *mask=0, int maxIters=2000, double confidence=0.995)
void | cvFindStereoCorrespondenceBM (const CvArr *left, const CvArr *right, CvArr *disparity, CvStereoBMState *state)
void | cvGetOptimalNewCameraMatrix (const CvMat *camera_matrix, const CvMat *dist_coeffs, CvSize image_size, double alpha, CvMat *new_camera_matrix, CvSize new_imag_size=cvSize(0, 0), CvRect *valid_pixel_ROI=0, int center_principal_point=0)
CvRect | cvGetValidDisparityROI (CvRect roi1, CvRect roi2, int minDisparity, int numberOfDisparities, int SADWindowSize)
void | cvInitIntrinsicParams2D (const CvMat *object_points, const CvMat *image_points, const CvMat *npoints, CvSize image_size, CvMat *camera_matrix, double aspect_ratio=1.)
void | cvPOSIT (CvPOSITObject *posit_object, CvPoint2D32f *image_points, double focal_length, CvTermCriteria criteria, float *rotation_matrix, float *translation_vector)
void | cvProjectPoints2 (const CvMat *object_points, const CvMat *rotation_vector, const CvMat *translation_vector, const CvMat *camera_matrix, const CvMat *distortion_coeffs, CvMat *image_points, CvMat *dpdrot=NULL, CvMat *dpdt=NULL, CvMat *dpdf=NULL, CvMat *dpdc=NULL, CvMat *dpddist=NULL, double aspect_ratio=0)
int | cvRANSACUpdateNumIters (double p, double err_prob, int model_points, int max_iters)
void | cvReleasePOSITObject (CvPOSITObject **posit_object)
void | cvReleaseStereoBMState (CvStereoBMState **state)
void | cvReprojectImageTo3D (const CvArr *disparityImage, CvArr *_3dImage, const CvMat *Q, int handleMissingValues=0)
int | cvRodrigues2 (const CvMat *src, CvMat *dst, CvMat *jacobian=0)
void | cvRQDecomp3x3 (const CvMat *matrixM, CvMat *matrixR, CvMat *matrixQ, CvMat *matrixQx=NULL, CvMat *matrixQy=NULL, CvMat *matrixQz=NULL, CvPoint3D64f *eulerAngles=NULL)
double | cvStereoCalibrate (const CvMat *object_points, const CvMat *image_points1, const CvMat *image_points2, const CvMat *npoints, CvMat *camera_matrix1, CvMat *dist_coeffs1, CvMat *camera_matrix2, CvMat *dist_coeffs2, CvSize image_size, CvMat *R, CvMat *T, CvMat *E=0, CvMat *F=0, int flags=256, CvTermCriteria term_crit=cvTermCriteria(CV_TERMCRIT_ITER+CV_TERMCRIT_EPS, 30, 1e-6))
void | cvStereoRectify (const CvMat *camera_matrix1, const CvMat *camera_matrix2, const CvMat *dist_coeffs1, const CvMat *dist_coeffs2, CvSize image_size, const CvMat *R, const CvMat *T, CvMat *R1, CvMat *R2, CvMat *P1, CvMat *P2, CvMat *Q=0, int flags=1024, double alpha=-1, CvSize new_image_size=cvSize(0, 0), CvRect *valid_pix_ROI1=0, CvRect *valid_pix_ROI2=0)
int | cvStereoRectifyUncalibrated (const CvMat *points1, const CvMat *points2, const CvMat *F, CvSize img_size, CvMat *H1, CvMat *H2, double threshold=5)
void | cvTriangulatePoints (CvMat *projMatr1, CvMat *projMatr2, CvMat *projPoints1, CvMat *projPoints2, CvMat *points4D)
void | cvValidateDisparity (CvArr *disparity, const CvArr *cost, int minDisparity, int numberOfDisparities, int disp12MaxDiff=1)

## Detailed Description

## Macro Definition Documentation

## ◆ CV_CALIB_CB_ADAPTIVE_THRESH

#define CV_CALIB_CB_ADAPTIVE_THRESH 1

## ◆ CV_CALIB_CB_FAST_CHECK

#define CV_CALIB_CB_FAST_CHECK 8

## ◆ CV_CALIB_CB_FILTER_QUADS

#define CV_CALIB_CB_FILTER_QUADS 4

## ◆ CV_CALIB_CB_NORMALIZE_IMAGE

#define CV_CALIB_CB_NORMALIZE_IMAGE 2

## ◆ CV_CALIB_FIX_ASPECT_RATIO

#define CV_CALIB_FIX_ASPECT_RATIO 2

## ◆ CV_CALIB_FIX_FOCAL_LENGTH

#define CV_CALIB_FIX_FOCAL_LENGTH 16

## ◆ CV_CALIB_FIX_INTRINSIC

#define CV_CALIB_FIX_INTRINSIC 256

## ◆ CV_CALIB_FIX_K1

#define CV_CALIB_FIX_K1 32

## ◆ CV_CALIB_FIX_K2

#define CV_CALIB_FIX_K2 64

## ◆ CV_CALIB_FIX_K3

#define CV_CALIB_FIX_K3 128

## ◆ CV_CALIB_FIX_K4

#define CV_CALIB_FIX_K4 2048

## ◆ CV_CALIB_FIX_K5

#define CV_CALIB_FIX_K5 4096

## ◆ CV_CALIB_FIX_K6

#define CV_CALIB_FIX_K6 8192

## ◆ CV_CALIB_FIX_PRINCIPAL_POINT

#define CV_CALIB_FIX_PRINCIPAL_POINT 4

## ◆ CV_CALIB_FIX_S1_S2_S3_S4

#define CV_CALIB_FIX_S1_S2_S3_S4 65536

## ◆ CV_CALIB_FIX_TANGENT_DIST

#define CV_CALIB_FIX_TANGENT_DIST 2097152

## ◆ CV_CALIB_FIX_TAUX_TAUY

#define CV_CALIB_FIX_TAUX_TAUY 524288

## ◆ CV_CALIB_NINTRINSIC

#define CV_CALIB_NINTRINSIC 18

## ◆ CV_CALIB_RATIONAL_MODEL

#define CV_CALIB_RATIONAL_MODEL 16384

## ◆ CV_CALIB_SAME_FOCAL_LENGTH

#define CV_CALIB_SAME_FOCAL_LENGTH 512

## ◆ CV_CALIB_THIN_PRISM_MODEL

#define CV_CALIB_THIN_PRISM_MODEL 32768

## ◆ CV_CALIB_TILTED_MODEL

#define CV_CALIB_TILTED_MODEL 262144

## ◆ CV_CALIB_USE_INTRINSIC_GUESS

#define CV_CALIB_USE_INTRINSIC_GUESS 1

## ◆ CV_CALIB_ZERO_DISPARITY

#define CV_CALIB_ZERO_DISPARITY 1024

## ◆ CV_CALIB_ZERO_TANGENT_DIST

#define CV_CALIB_ZERO_TANGENT_DIST 8

## ◆ CV_FM_7POINT

#define CV_FM_7POINT 1

## ◆ CV_FM_8POINT

#define CV_FM_8POINT 2

## ◆ CV_FM_LMEDS

#define CV_FM_LMEDS CV_LMEDS

## ◆ CV_FM_LMEDS_ONLY

#define CV_FM_LMEDS_ONLY CV_LMEDS

## ◆ CV_FM_RANSAC

#define CV_FM_RANSAC CV_RANSAC

## ◆ CV_FM_RANSAC_ONLY

#define CV_FM_RANSAC_ONLY CV_RANSAC

## ◆ CV_LMEDS

#define CV_LMEDS 4

## ◆ CV_RANSAC

#define CV_RANSAC 8

## ◆ CV_STEREO_BM_BASIC

#define CV_STEREO_BM_BASIC 0

## ◆ CV_STEREO_BM_FISH_EYE

#define CV_STEREO_BM_FISH_EYE 1

## ◆ CV_STEREO_BM_NARROW

#define CV_STEREO_BM_NARROW 2

## ◆ CV_STEREO_BM_NORMALIZED_RESPONSE

#define CV_STEREO_BM_NORMALIZED_RESPONSE 0

## ◆ CV_STEREO_BM_XSOBEL

#define CV_STEREO_BM_XSOBEL 1

## Typedef Documentation

## ◆ CvPOSITObject

typedef struct CvPOSITObject CvPOSITObject

## Enumeration Type Documentation

## ◆ anonymous enum

anonymous enum

Enumerator
CV_ITERATIVE |
CV_EPNP |
CV_P3P |
CV_DLS |

## Function Documentation

## ◆ cvCalcMatMulDeriv()

void cvCalcMatMulDeriv | ( | const CvMat * | A,
|  | const CvMat * | B,
|  | CvMat * | dABdA,
|  | CvMat * | dABdB
| ) |  |

## ◆ cvCalibrateCamera2()

double cvCalibrateCamera2 | ( | const CvMat * | object_points,
|  | const CvMat * | image_points,
|  | const CvMat * | point_counts,
|  | CvSize | image_size,
|  | CvMat * | camera_matrix,
|  | CvMat * | distortion_coeffs,
|  | CvMat * | rotation_vectors = `NULL`,
|  | CvMat * | translation_vectors = `NULL`,
|  | int | flags = `0`,
|  | CvTermCriteria | term_crit = `cvTermCriteria(CV_TERMCRIT_ITER+CV_TERMCRIT_EPS, 30, DBL_EPSILON)`
| ) |  |

## ◆ cvCalibrationMatrixValues()

void cvCalibrationMatrixValues | ( | const CvMat * | camera_matrix,
|  | CvSize | image_size,
|  | double | aperture_width = `0`,
|  | double | aperture_height = `0`,
|  | double * | fovx = `NULL`,
|  | double * | fovy = `NULL`,
|  | double * | focal_length = `NULL`,
|  | CvPoint2D64f * | principal_point = `NULL`,
|  | double * | pixel_aspect_ratio = `NULL`
| ) |  |

## ◆ cvCheckChessboard()

int cvCheckChessboard | ( | IplImage * | src,
|  | CvSize | size
| ) |  |

## ◆ cvComposeRT()

void cvComposeRT | ( | const CvMat * | _rvec1,
|  | const CvMat * | _tvec1,
|  | const CvMat * | _rvec2,
|  | const CvMat * | _tvec2,
|  | CvMat * | _rvec3,
|  | CvMat * | _tvec3,
|  | CvMat * | dr3dr1 = `0`,
|  | CvMat * | dr3dt1 = `0`,
|  | CvMat * | dr3dr2 = `0`,
|  | CvMat * | dr3dt2 = `0`,
|  | CvMat * | dt3dr1 = `0`,
|  | CvMat * | dt3dt1 = `0`,
|  | CvMat * | dt3dr2 = `0`,
|  | CvMat * | dt3dt2 = `0`
| ) |  |

## ◆ cvComputeCorrespondEpilines()

void cvComputeCorrespondEpilines | ( | const CvMat * | points,
|  | int | which_image,
|  | const CvMat * | fundamental_matrix,
|  | CvMat * | correspondent_lines
| ) |  |

## ◆ cvConvertPointsHomogeneous()

void cvConvertPointsHomogeneous | ( | const CvMat * | src,
|  | CvMat * | dst
| ) |  |

## ◆ cvCorrectMatches()

void cvCorrectMatches | ( | CvMat * | F,
|  | CvMat * | points1,
|  | CvMat * | points2,
|  | CvMat * | new_points1,
|  | CvMat * | new_points2
| ) |  |

## ◆ cvCreatePOSITObject()

CvPOSITObject* cvCreatePOSITObject | ( | CvPoint3D32f * | points,
|  | int | point_count
| ) |  |

## ◆ cvCreateStereoBMState()

CvStereoBMState* cvCreateStereoBMState | ( | int | preset = `0`,
|  | int | numberOfDisparities = `0`
| ) |  |

## ◆ cvDecomposeProjectionMatrix()

void cvDecomposeProjectionMatrix | ( | const CvMat * | projMatr,
|  | CvMat * | calibMatr,
|  | CvMat * | rotMatr,
|  | CvMat * | posVect,
|  | CvMat * | rotMatrX = `NULL`,
|  | CvMat * | rotMatrY = `NULL`,
|  | CvMat * | rotMatrZ = `NULL`,
|  | CvPoint3D64f * | eulerAngles = `NULL`
| ) |  |

## ◆ cvDrawChessboardCorners()

void cvDrawChessboardCorners | ( | CvArr * | image,
|  | CvSize | pattern_size,
|  | CvPoint2D32f * | corners,
|  | int | count,
|  | int | pattern_was_found
| ) |  |

## ◆ cvFindChessboardCorners()

int cvFindChessboardCorners | ( | const void * | image,
|  | CvSize | pattern_size,
|  | CvPoint2D32f * | corners,
|  | int * | corner_count = `NULL`,
|  | int | flags = `1+2`
| ) |  |

## ◆ cvFindExtrinsicCameraParams2()

void cvFindExtrinsicCameraParams2 | ( | const CvMat * | object_points,
|  | const CvMat * | image_points,
|  | const CvMat * | camera_matrix,
|  | const CvMat * | distortion_coeffs,
|  | CvMat * | rotation_vector,
|  | CvMat * | translation_vector,
|  | int | use_extrinsic_guess = `0`
| ) |  |

## ◆ cvFindFundamentalMat()

int cvFindFundamentalMat | ( | const CvMat * | points1,
|  | const CvMat * | points2,
|  | CvMat * | fundamental_matrix,
|  | int | method = `8`,
|  | double | param1 = `3.`,
|  | double | param2 = `0.99`,
|  | CvMat * | status = `NULL`
| ) |  |

## ◆ cvFindHomography()

int cvFindHomography | ( | const CvMat * | src_points,
|  | const CvMat * | dst_points,
|  | CvMat * | homography,
|  | int | method = `0`,
|  | double | ransacReprojThreshold = `3`,
|  | CvMat * | mask = `0`,
|  | int | maxIters = `2000`,
|  | double | confidence = `0.995`
| ) |  |

## ◆ cvFindStereoCorrespondenceBM()

void cvFindStereoCorrespondenceBM | ( | const CvArr * | left,
|  | const CvArr * | right,
|  | CvArr * | disparity,
|  | CvStereoBMState * | state
| ) |  |

## ◆ cvGetOptimalNewCameraMatrix()

void cvGetOptimalNewCameraMatrix | ( | const CvMat * | camera_matrix,
|  | const CvMat * | dist_coeffs,
|  | CvSize | image_size,
|  | double | alpha,
|  | CvMat * | new_camera_matrix,
|  | CvSize | new_imag_size = `cvSize(0, 0)`,
|  | CvRect * | valid_pixel_ROI = `0`,
|  | int | center_principal_point = `0`
| ) |  |

## ◆ cvGetValidDisparityROI()

CvRect cvGetValidDisparityROI | ( | CvRect | roi1,
|  | CvRect | roi2,
|  | int | minDisparity,
|  | int | numberOfDisparities,
|  | int | SADWindowSize
| ) |  |

## ◆ cvInitIntrinsicParams2D()

void cvInitIntrinsicParams2D | ( | const CvMat * | object_points,
|  | const CvMat * | image_points,
|  | const CvMat * | npoints,
|  | CvSize | image_size,
|  | CvMat * | camera_matrix,
|  | double | aspect_ratio = `1.`
| ) |  |

## ◆ cvPOSIT()

void cvPOSIT | ( | CvPOSITObject * | posit_object,
|  | CvPoint2D32f * | image_points,
|  | double | focal_length,
|  | CvTermCriteria | criteria,
|  | float * | rotation_matrix,
|  | float * | translation_vector
| ) |  |

## ◆ cvProjectPoints2()

void cvProjectPoints2 | ( | const CvMat * | object_points,
|  | const CvMat * | rotation_vector,
|  | const CvMat * | translation_vector,
|  | const CvMat * | camera_matrix,
|  | const CvMat * | distortion_coeffs,
|  | CvMat * | image_points,
|  | CvMat * | dpdrot = `NULL`,
|  | CvMat * | dpdt = `NULL`,
|  | CvMat * | dpdf = `NULL`,
|  | CvMat * | dpdc = `NULL`,
|  | CvMat * | dpddist = `NULL`,
|  | double | aspect_ratio = `0`
| ) |  |

## ◆ cvRANSACUpdateNumIters()

int cvRANSACUpdateNumIters | ( | double | p,
|  | double | err_prob,
|  | int | model_points,
|  | int | max_iters
| ) |  |

## ◆ cvReleasePOSITObject()

void cvReleasePOSITObject | ( | CvPOSITObject ** | posit_object | ) |

## ◆ cvReleaseStereoBMState()

void cvReleaseStereoBMState | ( | CvStereoBMState ** | state | ) |

## ◆ cvReprojectImageTo3D()

void cvReprojectImageTo3D | ( | const CvArr * | disparityImage,
|  | CvArr * | _3dImage,
|  | const CvMat * | Q,
|  | int | handleMissingValues = `0`
| ) |  |

## ◆ cvRodrigues2()

int cvRodrigues2 | ( | const CvMat * | src,
|  | CvMat * | dst,
|  | CvMat * | jacobian = `0`
| ) |  |

## ◆ cvRQDecomp3x3()

void cvRQDecomp3x3 | ( | const CvMat * | matrixM,
|  | CvMat * | matrixR,
|  | CvMat * | matrixQ,
|  | CvMat * | matrixQx = `NULL`,
|  | CvMat * | matrixQy = `NULL`,
|  | CvMat * | matrixQz = `NULL`,
|  | CvPoint3D64f * | eulerAngles = `NULL`
| ) |  |

## ◆ cvStereoCalibrate()

double cvStereoCalibrate | ( | const CvMat * | object_points,
|  | const CvMat * | image_points1,
|  | const CvMat * | image_points2,
|  | const CvMat * | npoints,
|  | CvMat * | camera_matrix1,
|  | CvMat * | dist_coeffs1,
|  | CvMat * | camera_matrix2,
|  | CvMat * | dist_coeffs2,
|  | CvSize | image_size,
|  | CvMat * | R,
|  | CvMat * | T,
|  | CvMat * | E = `0`,
|  | CvMat * | F = `0`,
|  | int | flags = `256`,
|  | CvTermCriteria | term_crit = `cvTermCriteria(CV_TERMCRIT_ITER+CV_TERMCRIT_EPS, 30, 1e-6)`
| ) |  |

## ◆ cvStereoRectify()

void cvStereoRectify | ( | const CvMat * | camera_matrix1,
|  | const CvMat * | camera_matrix2,
|  | const CvMat * | dist_coeffs1,
|  | const CvMat * | dist_coeffs2,
|  | CvSize | image_size,
|  | const CvMat * | R,
|  | const CvMat * | T,
|  | CvMat * | R1,
|  | CvMat * | R2,
|  | CvMat * | P1,
|  | CvMat * | P2,
|  | CvMat * | Q = `0`,
|  | int | flags = `1024`,
|  | double | alpha = `-1`,
|  | CvSize | new_image_size = `cvSize(0, 0)`,
|  | CvRect * | valid_pix_ROI1 = `0`,
|  | CvRect * | valid_pix_ROI2 = `0`
| ) |  |

## ◆ cvStereoRectifyUncalibrated()

int cvStereoRectifyUncalibrated | ( | const CvMat * | points1,
|  | const CvMat * | points2,
|  | const CvMat * | F,
|  | CvSize | img_size,
|  | CvMat * | H1,
|  | CvMat * | H2,
|  | double | threshold = `5`
| ) |  |

## ◆ cvTriangulatePoints()

void cvTriangulatePoints | ( | CvMat * | projMatr1,
|  | CvMat * | projMatr2,
|  | CvMat * | projPoints1,
|  | CvMat * | projPoints2,
|  | CvMat * | points4D
| ) |  |

## ◆ cvValidateDisparity()

void cvValidateDisparity | ( | CvArr * | disparity,
|  | const CvArr * | cost,
|  | int | minDisparity,
|  | int | numberOfDisparities,
|  | int | disp12MaxDiff = `1`
| ) |  |