cv::TickMeter Class Reference

a Class to measure passing time. More...

#include "utility.hpp"

Public Member Functions
	TickMeter ()
	the default constructor More...
int64	getCounter () const
double	getTimeMicro () const
double	getTimeMilli () const
double	getTimeSec () const
int64	getTimeTicks () const
void	reset ()
void	start ()
void	stop ()

Detailed Description

a Class to measure passing time.

The class computes passing time by counting the number of ticks per second. That is, the following code computes the execution time in seconds:

TickMeter tm;
tm.start();
// do something ...
tm.stop();
std::cout << tm.getTimeSec();

It is also possible to compute the average time over multiple runs:

TickMeter tm;
for (int i = 0; i < 100; i++)
{
    tm.start();
    // do something ...
    tm.stop();
}
double average_time = tm.getTimeSec() / tm.getCounter();
std::cout << "Average time in second per iteration is: " << average_time << std::endl;

See also

getTickCount, getTickFrequency

Constructor & Destructor Documentation

TickMeter()

cv::TickMeter::TickMeter ( )

inline

the default constructor

Member Function Documentation

getCounter()

int64 cv::TickMeter::getCounter ( ) const

inline

returns internal counter value.

getTimeMicro()

double cv::TickMeter::getTimeMicro ( ) const

inline

returns passed time in microseconds.

getTimeMilli()

double cv::TickMeter::getTimeMilli ( ) const

inline

returns passed time in milliseconds.

getTimeSec()

double cv::TickMeter::getTimeSec ( ) const

inline

returns passed time in seconds.

getTimeTicks()

int64 cv::TickMeter::getTimeTicks ( ) const

inline

returns counted ticks.

reset()

void cv::TickMeter::reset ( )

inline

resets internal values.

start()

void cv::TickMeter::start ( )

inline

starts counting ticks.

stop()

void cv::TickMeter::stop ( )

inline

stops counting ticks.

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The documentation for this class was generated from the following file:

• core/include/opencv2/core/utility.hpp