Catalano.Imaging.Filters

Class RosinThreshold

java.lang.Object

Catalano.Imaging.Filters.RosinThreshold

All Implemented Interfaces:

IApplyInPlace

public class RosinThreshold
extends java.lang.Object
implements IApplyInPlace

Rosin Threshold. Unimodal thresholding is an algorithm for automatic image threshold selection in image processing. Most threshold selection algorithms assume that the intensity histogram is multi-modal; typically bimodal. However, some types of images are essentially unimodal since a much larger proportion of just one class of pixels (e.g. the background) is present in the image, and dominates the histogram. Rosin Threshod uses Maximum deviation algorithm: a straight line is drawn from the histogram peak to the end of the tail, and the threshold is selected at the point of the histogram furthest from the straight line

Constructor Summary

Constructors

Constructor and Description
RosinThreshold() Initialize a new instance of the RosinThreshold class.

Method Summary

Modifier and Type	Method and Description
void	applyInPlace(FastBitmap fastBitmap) Apply filter to an image.
int	CalculateThreshold(FastBitmap fastBitmap) Calculate binarization threshold for the given image.

Methods inherited from class java.lang.Object

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

Constructor Detail

RosinThreshold

public RosinThreshold()

Initialize a new instance of the RosinThreshold class.

Method Detail

applyInPlace

public void applyInPlace(FastBitmap fastBitmap)

Description copied from interface: IApplyInPlace

Apply filter to an image.

Specified by:

applyInPlace in interface IApplyInPlace

Parameters:

fastBitmap - Image to be processed.

CalculateThreshold

public int CalculateThreshold(FastBitmap fastBitmap)

Calculate binarization threshold for the given image.

Parameters:

fastBitmap - FastBitmap.

Returns:

Threshold value.