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Adding feature 1544 and 1557

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-cv::findHomography added a parameter for RANSAC iterations
 -cv::findHomography added a parameter for RANSAC confidence
This commit is contained in:
Shubhra Pandit 2014-08-16 19:13:39 -04:00
parent dea40e5e99
commit 6ca893be23
4 changed files with 21 additions and 7 deletions
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3
modules/calib3d/include/opencv2/calib3d.hpp
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@ -108,7 +108,8 @@ CV_EXPORTS_W void Rodrigues( InputArray src, OutputArray dst, OutputArray jacobi
//! computes the best-fit perspective transformation mapping srcPoints to dstPoints.
CV_EXPORTS_W Mat findHomography( InputArray srcPoints, InputArray dstPoints,
int method = 0, double ransacReprojThreshold = 3,
OutputArray mask=noArray());
OutputArray mask=noArray(), const int maxIters = 2000,
const double confidence = 0.995);
//! variant of findHomography for backward compatibility
CV_EXPORTS Mat findHomography( InputArray srcPoints, InputArray dstPoints,

4
modules/calib3d/include/opencv2/calib3d/calib3d_c.h
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@ -140,7 +140,9 @@ CVAPI(int) cvFindHomography( const CvMat* src_points,
CvMat* homography,
int method CV_DEFAULT(0),
double ransacReprojThreshold CV_DEFAULT(3),
CvMat* mask CV_DEFAULT(0));
CvMat* mask CV_DEFAULT(0),
int maxIters CV_DEFAULT(2000),
double confidence CV_DEFAULT(0.995));
/* Computes RQ decomposition for 3x3 matrices */
CVAPI(void) cvRQDecomp3x3( const CvMat *matrixM, CvMat *matrixR, CvMat *matrixQ,

16
modules/calib3d/src/compat_ptsetreg.cpp
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@ -299,7 +299,8 @@ CV_IMPL int cvRANSACUpdateNumIters( double p, double ep, int modelPoints, int ma
CV_IMPL int cvFindHomography( const CvMat* _src, const CvMat* _dst, CvMat* __H, int method,
double ransacReprojThreshold, CvMat* _mask )
double ransacReprojThreshold, CvMat* _mask, int maxIters,
double confidence)
{
cv::Mat src = cv::cvarrToMat(_src), dst = cv::cvarrToMat(_dst);
@ -308,9 +309,20 @@ CV_IMPL int cvFindHomography( const CvMat* _src, const CvMat* _dst, CvMat* __H,
if( dst.channels() == 1 && (dst.rows == 2 || dst.rows == 3) && dst.cols > 3 )
cv::transpose(dst, dst);
if ( maxIters < 0 )
maxIters = 0;
if ( maxIters > 2000 )
maxIters = 2000;
if ( confidence < 0 )
confidence = 0;
if ( confidence > 1 )
confidence = 1;
const cv::Mat H = cv::cvarrToMat(__H), mask = cv::cvarrToMat(_mask);
cv::Mat H0 = cv::findHomography(src, dst, method, ransacReprojThreshold,
_mask ? cv::_OutputArray(mask) : cv::_OutputArray());
_mask ? cv::_OutputArray(mask) : cv::_OutputArray(), maxIters,
confidence);
if( H0.empty() )
{

5
modules/calib3d/src/fundam.cpp
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@ -274,10 +274,9 @@ public:
cv::Mat cv::findHomography( InputArray _points1, InputArray _points2,
int method, double ransacReprojThreshold, OutputArray _mask )
int method, double ransacReprojThreshold, OutputArray _mask,
const int maxIters, const double confidence)
{
const double confidence = 0.995;
const int maxIters = 2000;
const double defaultRANSACReprojThreshold = 3;
bool result = false;