org.opencv.core

Class TickMeter

java.lang.Object

org.opencv.core.TickMeter

public class TickMeter
extends Object

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: getTickCount, getTickFrequency

Field Summary

Fields

Modifier and Type	Field and Description
protected long	nativeObj

Constructor Summary

Constructors

Modifier	Constructor and Description
	TickMeter()
protected	TickMeter(long addr)

Method Summary

Modifier and Type	Method and Description
static TickMeter	__fromPtr__(long addr)
protected void	finalize()
long	getCounter() returns internal counter value.
long	getNativeObjAddr()
double	getTimeMicro() returns passed time in microseconds.
double	getTimeMilli() returns passed time in milliseconds.
double	getTimeSec() returns passed time in seconds.
long	getTimeTicks() returns counted ticks.
void	reset() resets internal values.
void	start() starts counting ticks.
void	stop() stops counting ticks.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

nativeObj

protected final long nativeObj

Constructor Detail

TickMeter

protected TickMeter(long addr)

TickMeter

public TickMeter()

Method Detail

getNativeObjAddr

public long getNativeObjAddr()

__fromPtr__

public static TickMeter __fromPtr__(long addr)

getTimeMicro

public double getTimeMicro()

returns passed time in microseconds.

Returns:

automatically generated

getTimeMilli

public double getTimeMilli()

returns passed time in milliseconds.

Returns:

automatically generated

getTimeSec

public double getTimeSec()

returns passed time in seconds.

Returns:

automatically generated

getCounter

public long getCounter()

returns internal counter value.

Returns:

automatically generated

getTimeTicks

public long getTimeTicks()

returns counted ticks.

Returns:

automatically generated

reset

public void reset()

resets internal values.

start

public void start()

starts counting ticks.

stop

public void stop()

stops counting ticks.

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable