Struct opencv::core::TickMeter

pub struct TickMeter { /* fields omitted */ }

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

Methods

impl TickMeter

pub fn as_raw_TickMeter(&self) -> *mut c_void

pub unsafe fn from_raw_ptr(ptr: *mut c_void) -> Self

impl TickMeter

pub fn default() -> Result<TickMeter>

the default constructor

pub fn start(&mut self) -> Result<()>

starts counting ticks.

pub fn stop(&mut self) -> Result<()>

stops counting ticks.

pub fn get_time_ticks(&self) -> Result<i64>

returns counted ticks.

pub fn get_time_micro(&self) -> Result<f64>

returns passed time in microseconds.

pub fn get_time_milli(&self) -> Result<f64>

returns passed time in milliseconds.

pub fn get_time_sec(&self) -> Result<f64>

returns passed time in seconds.

pub fn get_counter(&self) -> Result<i64>

returns internal counter value.

pub fn reset(&mut self) -> Result<()>

resets internal values.

Trait Implementations

impl Send for TickMeter

impl Drop for TickMeter

fn drop(&mut self)

Executes the destructor for this type.