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videostab.cpp
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#if defined __clang__
# pragma GCC diagnostic ignored "-Wdelete-non-virtual-dtor"
#endif
#include <string>
#include <iostream>
#include <fstream>
#include <sstream>
#include <stdexcept>
#include "opencv2/core/core.hpp"
#include "opencv2/video/video.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/videostab/videostab.hpp"
using namespace std;
using namespace cv;
using namespace cv::videostab;
Ptr<IFrameSource> stabilizedFrames;
string saveMotionsPath;
double outputFps;
string outputPath;
bool quietMode;
void run();
void saveMotionsIfNecessary();
void printHelp();
class GlobalMotionReader : public IGlobalMotionEstimator
{
public:
GlobalMotionReader(string path)
{
ifstream f(path.c_str());
if (!f.is_open())
throw runtime_error("can't open motions file: " + path);
int size = 0; f >> size;
motions_.resize(size);
for (int i = 0; i < size; ++i)
{
Mat_<float> M(3, 3);
for (int l = 0; l < 3; ++l)
for (int s = 0; s < 3; ++s)
f >> M(l,s);
motions_[i] = M;
}
pos_ = 0;
}
virtual Mat estimate(const Mat &/*frame0*/, const Mat &/*frame1*/)
{
if (pos_ >= motions_.size())
{
stringstream text;
text << "can't load motion between frames " << pos_ << " and " << pos_+1;
throw runtime_error(text.str());
}
return motions_[pos_++];
}
private:
vector<Mat> motions_;
size_t pos_;
};
void run()
{
VideoWriter writer;
Mat stabilizedFrame;
while (!(stabilizedFrame = stabilizedFrames->nextFrame()).empty())
{
if (!saveMotionsPath.empty())
saveMotionsIfNecessary();
if (!outputPath.empty())
{
if (!writer.isOpened())
writer.open(outputPath, CV_FOURCC('X','V','I','D'), outputFps, stabilizedFrame.size());
writer << stabilizedFrame;
}
if (!quietMode)
{
imshow("stabilizedFrame", stabilizedFrame);
char key = static_cast<char>(waitKey(3));
if (key == 27)
break;
}
}
cout << "\nfinished\n";
}
void saveMotionsIfNecessary()
{
static bool areMotionsSaved = false;
if (!areMotionsSaved)
{
IFrameSource *frameSource = static_cast<IFrameSource*>(stabilizedFrames);
TwoPassStabilizer *twoPassStabilizer = dynamic_cast<TwoPassStabilizer*>(frameSource);
if (twoPassStabilizer)
{
ofstream f(saveMotionsPath.c_str());
const vector<Mat> &motions = twoPassStabilizer->motions();
f << motions.size() << endl;
for (size_t i = 0; i < motions.size(); ++i)
{
Mat_<float> M = motions[i];
for (int l = 0, k = 0; l < 3; ++l)
for (int s = 0; s < 3; ++s, ++k)
f << M(l,s) << " ";
f << endl;
}
}
areMotionsSaved = true;
cout << "motions are saved";
}
}
void printHelp()
{
cout << "OpenCV video stabilizer.\n"
"Usage: videostab <file_path> [arguments]\n\n"
"Arguments:\n"
" -m, --model=(transl|transl_and_scale|linear_sim|affine)\n"
" Set motion model. The default is affine.\n"
" --outlier-ratio=<float_number>\n"
" Outliers ratio in motion estimation. The default is 0.5.\n"
" --min-inlier-ratio=<float_number>\n"
" Minimum inlier ratio to decide if estimated motion is OK. The default is 0.1,\n"
" but you may want to increase it.\n\n"
" --save-motions=<file_path>\n"
" Save estimated motions into file.\n"
" --load-motions=<file_path>\n"
" Load motions from file.\n\n"
" -r, --radius=<int_number>\n"
" Set smoothing radius. The default is 15.\n"
" --stdev=<float_number>\n"
" Set smoothing weights standard deviation. The default is sqrt(radius).\n\n"
" --deblur=(yes|no)\n"
" Do deblurring.\n"
" --deblur-sens=<float_number>\n"
" Set deblurring sensitivity (from 0 to +inf). The default is 0.1.\n\n"
" -t, --trim-ratio=<float_number>\n"
" Set trimming ratio (from 0 to 0.5). The default is 0.0.\n"
" --est-trim=(yes|no)\n"
" Estimate trim ratio automatically. The default is yes (that leads to two passes,\n"
" you can turn it off if you want to use one pass only).\n"
" --incl-constr=(yes|no)\n"
" Ensure the inclusion constraint is always satisfied. The default is no.\n\n"
" --border-mode=(replicate|reflect|const)\n"
" Set border extrapolation mode. The default is replicate.\n\n"
" --mosaic=(yes|no)\n"
" Do consistent mosaicing. The default is no.\n"
" --mosaic-stdev=<float_number>\n"
" Consistent mosaicing stdev threshold. The default is 10.0.\n\n"
" --motion-inpaint=(yes|no)\n"
" Do motion inpainting (requires GPU support). The default is no.\n"
" --dist-thresh=<float_number>\n"
" Estimated flow distance threshold for motion inpainting. The default is 5.0.\n\n"
" --color-inpaint=(no|average|ns|telea)\n"
" Do color inpainting. The defailt is no.\n"
" --color-inpaint-radius=<float_number>\n"
" Set color inpainting radius (for ns and telea options only).\n\n"
" -o, --output=(no|<file_path>)\n"
" Set output file path explicitely. The default is stabilized.avi.\n"
" --fps=<int_number>\n"
" Set output video FPS explicitely. By default the source FPS is used.\n"
" -q, --quiet\n"
" Don't show output video frames.\n\n"
" -h, --help\n"
" Print help.\n"
"\n";
}
int main(int argc, const char **argv)
{
try
{
const char *keys =
"{ 1 | | | | }"
"{ m | model | | }"
"{ | min-inlier-ratio | | }"
"{ | outlier-ratio | | }"
"{ | save-motions | | }"
"{ | load-motions | | }"
"{ r | radius | | }"
"{ | stdev | | }"
"{ | deblur | | }"
"{ | deblur-sens | | }"
"{ | est-trim | yes | }"
"{ t | trim-ratio | | }"
"{ | incl-constr | | }"
"{ | border-mode | | }"
"{ | mosaic | | }"
"{ | mosaic-stdev | | }"
"{ | motion-inpaint | | }"
"{ | dist-thresh | | }"
"{ | color-inpaint | no | }"
"{ | color-inpaint-radius | | }"
"{ o | output | stabilized.avi | }"
"{ | fps | | }"
"{ q | quiet | false | }"
"{ h | help | false | }";
CommandLineParser cmd(argc, argv, keys);
// parse command arguments
if (cmd.get<bool>("help"))
{
printHelp();
return 0;
}
StabilizerBase *stabilizer;
GaussianMotionFilter *motionFilter = 0;
if (!cmd.get<string>("stdev").empty())
{
motionFilter = new GaussianMotionFilter();
motionFilter->setStdev(cmd.get<float>("stdev"));
}
if (!cmd.get<string>("save-motions").empty())
saveMotionsPath = cmd.get<string>("save-motions");
bool isTwoPass =
cmd.get<string>("est-trim") == "yes" ||
!cmd.get<string>("save-motions").empty();
if (isTwoPass)
{
TwoPassStabilizer *twoPassStabilizer = new TwoPassStabilizer();
if (!cmd.get<string>("est-trim").empty())
twoPassStabilizer->setEstimateTrimRatio(cmd.get<string>("est-trim") == "yes");
if (motionFilter)
twoPassStabilizer->setMotionStabilizer(motionFilter);
stabilizer = twoPassStabilizer;
}
else
{
OnePassStabilizer *onePassStabilizer= new OnePassStabilizer();
if (motionFilter)
onePassStabilizer->setMotionFilter(motionFilter);
stabilizer = onePassStabilizer;
}
string inputPath = cmd.get<string>("1");
if (inputPath.empty())
throw runtime_error("specify video file path");
VideoFileSource *frameSource = new VideoFileSource(inputPath);
outputFps = frameSource->fps();
stabilizer->setFrameSource(frameSource);
cout << "frame count: " << frameSource->frameCount() << endl;
PyrLkRobustMotionEstimator *motionEstimator = new PyrLkRobustMotionEstimator();
if (cmd.get<string>("model") == "transl")
motionEstimator->setMotionModel(TRANSLATION);
else if (cmd.get<string>("model") == "transl_and_scale")
motionEstimator->setMotionModel(TRANSLATION_AND_SCALE);
else if (cmd.get<string>("model") == "linear_sim")
motionEstimator->setMotionModel(LINEAR_SIMILARITY);
else if (cmd.get<string>("model") == "affine")
motionEstimator->setMotionModel(AFFINE);
else if (!cmd.get<string>("model").empty())
throw runtime_error("unknow motion mode: " + cmd.get<string>("model"));
if (!cmd.get<string>("outlier-ratio").empty())
{
RansacParams ransacParams = motionEstimator->ransacParams();
ransacParams.eps = cmd.get<float>("outlier-ratio");
motionEstimator->setRansacParams(ransacParams);
}
if (!cmd.get<string>("min-inlier-ratio").empty())
motionEstimator->setMinInlierRatio(cmd.get<float>("min-inlier-ratio"));
stabilizer->setMotionEstimator(motionEstimator);
if (!cmd.get<string>("load-motions").empty())
stabilizer->setMotionEstimator(new GlobalMotionReader(cmd.get<string>("load-motions")));
if (!cmd.get<string>("radius").empty())
stabilizer->setRadius(cmd.get<int>("radius"));
if (cmd.get<string>("deblur") == "yes")
{
WeightingDeblurer *deblurer = new WeightingDeblurer();
if (!cmd.get<string>("deblur-sens").empty())
deblurer->setSensitivity(cmd.get<float>("deblur-sens"));
stabilizer->setDeblurer(deblurer);
}
if (!cmd.get<string>("trim-ratio").empty())
stabilizer->setTrimRatio(cmd.get<float>("trim-ratio"));
if (!cmd.get<string>("incl-constr").empty())
stabilizer->setCorrectionForInclusion(cmd.get<string>("incl-constr") == "yes");
if (cmd.get<string>("border-mode") == "reflect")
stabilizer->setBorderMode(BORDER_REFLECT);
else if (cmd.get<string>("border-mode") == "replicate")
stabilizer->setBorderMode(BORDER_REPLICATE);
else if (cmd.get<string>("border-mode") == "const")
stabilizer->setBorderMode(BORDER_CONSTANT);
else if (!cmd.get<string>("border-mode").empty())
throw runtime_error("unknown border extrapolation mode: " + cmd.get<string>("border-mode"));
InpaintingPipeline *inpainters = new InpaintingPipeline();
if (cmd.get<string>("mosaic") == "yes")
{
ConsistentMosaicInpainter *inpainter = new ConsistentMosaicInpainter();
if (!cmd.get<string>("mosaic-stdev").empty())
inpainter->setStdevThresh(cmd.get<float>("mosaic-stdev"));
inpainters->pushBack(inpainter);
}
if (cmd.get<string>("motion-inpaint") == "yes")
{
MotionInpainter *inpainter = new MotionInpainter();
if (!cmd.get<string>("dist-thresh").empty())
inpainter->setDistThreshold(cmd.get<float>("dist-thresh"));
inpainters->pushBack(inpainter);
}
if (!cmd.get<string>("color-inpaint").empty())
{
if (cmd.get<string>("color-inpaint") == "average")
inpainters->pushBack(new ColorAverageInpainter());
else if (!cmd.get<string>("color-inpaint-radius").empty())
{
float radius = cmd.get<float>("color-inpaint-radius");
if (cmd.get<string>("color-inpaint") == "ns")
inpainters->pushBack(new ColorInpainter(INPAINT_NS, radius));
else if (cmd.get<string>("color-inpaint") == "telea")
inpainters->pushBack(new ColorInpainter(INPAINT_TELEA, radius));
else if (cmd.get<string>("color-inpaint") != "no")
throw runtime_error("unknown color inpainting method: " + cmd.get<string>("color-inpaint"));
}
else
{
if (cmd.get<string>("color-inpaint") == "ns")
inpainters->pushBack(new ColorInpainter(INPAINT_NS));
else if (cmd.get<string>("color-inpaint") == "telea")
inpainters->pushBack(new ColorInpainter(INPAINT_TELEA));
else if (cmd.get<string>("color-inpaint") != "no")
throw runtime_error("unknown color inpainting method: " + cmd.get<string>("color-inpaint"));
}
}
if (!inpainters->empty())
stabilizer->setInpainter(inpainters);
stabilizer->setLog(new LogToStdout());
outputPath = cmd.get<string>("output") != "no" ? cmd.get<string>("output") : "";
if (!cmd.get<string>("fps").empty())
outputFps = cmd.get<double>("fps");
quietMode = cmd.get<bool>("quiet");
stabilizedFrames = dynamic_cast<IFrameSource*>(stabilizer);
run();
}
catch (const exception &e)
{
cout << "error: " << e.what() << endl;
stabilizedFrames.release();
return -1;
}
stabilizedFrames.release();
return 0;
}