boofcv.alg.background

Interface BackgroundAlgorithmBasic

All Known Implementing Classes:

BackgroundMovingBasic, BackgroundMovingBasic_IL, BackgroundMovingBasic_MS, BackgroundMovingBasic_SB, BackgroundStationaryBasic, BackgroundStationaryBasic_IL, BackgroundStationaryBasic_MS, BackgroundStationaryBasic_SB

public interface BackgroundAlgorithmBasic

Performs basic background subtraction on an image.

One of the most basic ways and easiest to perform background detection. A simple image is used to represent the background. each pixel is updated individually using the formula below:

B(i+1) = (1-α)*B(i) + αI(i)
Where B is the background image, I is the current observed image, and α is the learning rate 0 to 1. Where 0 is static and 1 is instant.

If a specific pixel has not been observed before it will be set to the value of the equivalent pixel in the input image.

Method Summary

Modifier and Type	Method and Description
float	getLearnRate() Returns the learning rate.
float	getThreshold() Returns the threshold for background/moving object.
void	setLearnRate(float learnRate) Specifies the learning rate
void	setThreshold(float threshold) Sets the threshold for background/moving object

Method Detail

getLearnRate

float getLearnRate()

Returns the learning rate.

Returns:

0 (slow) to 1 (fast)

setLearnRate

void setLearnRate(float learnRate)

Specifies the learning rate

Parameters:

learnRate - 0 (slow) to 1 (fast)

getThreshold

float getThreshold()

Returns the threshold for background/moving object.

Returns:

background threshold

setThreshold

void setThreshold(float threshold)

Sets the threshold for background/moving object

Parameters:

threshold - background threshold