org.openimaj.image.processing.threshold

Class AdaptiveLocalThresholdMedian

java.lang.Object

org.openimaj.image.processing.threshold.AbstractLocalThreshold

org.openimaj.image.processing.threshold.AdaptiveLocalThresholdMedian

All Implemented Interfaces:

ImageProcessor<FImage>, Processor<FImage>, SinglebandImageProcessor<Float,FImage>

public class AdaptiveLocalThresholdMedian
extends AbstractLocalThreshold

Adaptive local thresholding using the median of the patch and an offset.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

See Also:

http://homepages.inf.ed.ac.uk/rbf/HIPR2/adpthrsh.htm

Nested Class Summary

Nested classes/interfaces inherited from interface org.openimaj.image.processor.SinglebandImageProcessor

SinglebandImageProcessor.Processable<T,S extends Image<T,S>,I extends Image<?,I>>

Field Summary

Fields inherited from class org.openimaj.image.processing.threshold.AbstractLocalThreshold

sizeX, sizeY

Constructor Summary

Constructors

Constructor and Description
AdaptiveLocalThresholdMedian(int size) Construct the thresholding operator with the given patch size (assumed square)
AdaptiveLocalThresholdMedian(int size, float offset) Construct the thresholding operator with the given patch size (assumed square) and offset
AdaptiveLocalThresholdMedian(int size_x, int size_y) Construct the thresholding operator with the given patch size
AdaptiveLocalThresholdMedian(int size_x, int size_y, float offset) Construct the thresholding operator with the given patch size and offset

Method Summary

Modifier and Type	Method and Description
void	processImage(FImage image) Process an image.

Methods inherited from class org.openimaj.image.processing.threshold.AbstractLocalThreshold

getKernelHeight, getKernelWidth

Methods inherited from class java.lang.Object

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

Constructor Detail

AdaptiveLocalThresholdMedian

public AdaptiveLocalThresholdMedian(int size)

Construct the thresholding operator with the given patch size (assumed square)

Parameters:

size - size of the local image patch

AdaptiveLocalThresholdMedian

public AdaptiveLocalThresholdMedian(int size_x,
                                    int size_y)

Construct the thresholding operator with the given patch size

Parameters:

size_x - width of patch

size_y - height of patch

AdaptiveLocalThresholdMedian

public AdaptiveLocalThresholdMedian(int size,
                                    float offset)

Construct the thresholding operator with the given patch size (assumed square) and offset

Parameters:

size - size of the local image patch

offset - offset from the patch mean at which the threshold occurs

AdaptiveLocalThresholdMedian

public AdaptiveLocalThresholdMedian(int size_x,
                                    int size_y,
                                    float offset)

Construct the thresholding operator with the given patch size and offset

Parameters:

size_x - width of patch

size_y - height of patch

offset - offset from the patch mean at which the threshold occurs

Method Detail

processImage

public void processImage(FImage image)

Description copied from interface: ImageProcessor

Process an image. Implementing classes must alter the image passed in-place or assign the output to the input using Image.internalAssign(Image).

Parameters:

image - The image to process in place.