opencv/modules/video/perf/perf_optflowpyrlk.cpp
2012-05-18 13:18:37 +00:00

94 lines
3.1 KiB
C++

#include "perf_precomp.hpp"
using namespace std;
using namespace cv;
using namespace perf;
using std::tr1::make_tuple;
using std::tr1::get;
typedef tr1::tuple<std::string, int, int, tr1::tuple<int,int>, int> Path_Idx_Cn_NPoints_WSize_t;
typedef TestBaseWithParam<Path_Idx_Cn_NPoints_WSize_t> Path_Idx_Cn_NPoints_WSize;
void FormTrackingPointsArray(vector<Point2f>& points, int width, int height, int nPointsX, int nPointsY)
{
int stepX = width / nPointsX;
int stepY = height / nPointsY;
if (stepX < 1 || stepY < 1) FAIL() << "Specified points number is too big";
points.clear();
points.reserve(nPointsX * nPointsY);
for( int x = stepX / 2; x < width; x += stepX )
{
for( int y = stepY / 2; y < height; y += stepY )
{
Point2f pt(static_cast<float>(x), static_cast<float>(y));
points.push_back(pt);
}
}
}
PERF_TEST_P(Path_Idx_Cn_NPoints_WSize, OpticalFlowPyrLK, testing::Combine(
testing::Values<std::string>("cv/optflow/frames/VGA_%02d.png", "cv/optflow/frames/720p_%02d.jpg"),
testing::Range(0, 3),
testing::Values(1, 3, 4),
testing::Values(make_tuple(9, 9), make_tuple(15, 15)),
testing::Values(7, 11, 21, 25)
)
)
{
string filename1 = getDataPath(cv::format(get<0>(GetParam()).c_str(), get<1>(GetParam())));
string filename2 = getDataPath(cv::format(get<0>(GetParam()).c_str(), get<1>(GetParam()) + 1));
Mat img1 = imread(filename1);
Mat img2 = imread(filename2);
if (img1.empty()) FAIL() << "Unable to load source image " << filename1;
if (img2.empty()) FAIL() << "Unable to load source image " << filename2;
int cn = get<2>(GetParam());
int nPointsX = min(get<0>(get<3>(GetParam())), img1.cols);
int nPointsY = min(get<1>(get<3>(GetParam())), img1.rows);
int winSize = get<4>(GetParam());
int maxLevel = 2;
TermCriteria criteria(CV_TERMCRIT_ITER|CV_TERMCRIT_EPS, 7, 0.001);
int flags = 0;
double minEigThreshold = 1e-4;
Mat frame1, frame2;
switch(cn)
{
case 1:
cvtColor(img1, frame1, COLOR_BGR2GRAY, cn);
cvtColor(img2, frame2, COLOR_BGR2GRAY, cn);
break;
case 3:
frame1 = img1;
frame2 = img2;
break;
case 4:
cvtColor(img1, frame1, COLOR_BGR2BGRA, cn);
cvtColor(img2, frame2, COLOR_BGR2BGRA, cn);
break;
default:
FAIL() << "Unexpected number of channels: " << cn;
}
vector<Point2f> inPoints;
vector<Point2f> outPoints;
vector<uchar> status;
vector<float> err;
FormTrackingPointsArray(inPoints, frame1.cols, frame1.rows, nPointsX, nPointsY);
outPoints.resize(inPoints.size());
status.resize(inPoints.size());
err.resize(inPoints.size());
declare.in(frame1, frame2, inPoints).out(outPoints);
TEST_CYCLE_N(30)
{
calcOpticalFlowPyrLK(frame1, frame2, inPoints, outPoints, status, err,
Size(winSize, winSize), maxLevel, criteria,
flags, minEigThreshold);
}
}