C++ porting of Stan Salvador's FastDTW
Usage: iOS,use CocoaPods,add line in podfile: pod 'FastDTW-x' Other platform,Import all source files in Classes folder.
Sample code:
#include "DTW.h"
#include "FastDTW.h"
#include "EuclideanDistance.h"
#include <iostream>
using namespace fastdtw;
extern double *sample1;
extern double *sample2;
extern int sampleLength;
void testDTW()
{
TimeSeries<double,1> tsI;
for (int i = 0; i<sampleLength; ++i) {
tsI.addLast(i, TimeSeriesPoint<double,1>(sample1+i));
}
TimeSeries<double,1> tsJ;
for (int i = 0;i<sampleLength; ++i)
{
tsJ.addLast(i, TimeSeriesPoint<double,1>(sample2+i));
}
TimeWarpInfo<double> info = STRI::getWarpInfoBetween(tsI,tsJ,EuclideanDistance());
printf("Warp Distance by DTW:%lf\n",info.getDistance());
info.getPath()->print(std::cout);
}
void testFastDTW()
{
TimeSeries<double,1> tsI;
for (int i = 0; i<sampleLength; ++i) {
tsI.addLast(i, TimeSeriesPoint<double,1>(sample1+i));
}
TimeSeries<double,1> tsJ;
for (int i = 0;i<sampleLength; ++i)
{
tsJ.addLast(i, TimeSeriesPoint<double,1>(sample2+i));
}
TimeWarpInfo<double> info = FAST::getWarpInfoBetween(tsI,tsJ,EuclideanDistance());
printf("Warp Distance by DTW:%lf\n",info.getDistance());
info.getPath()->print(std::cout);
}