org.openimaj.image.contour

Class SuzukiContourProcessor

java.lang.Object

org.openimaj.image.contour.SuzukiContourProcessor

All Implemented Interfaces:

ImageAnalyser<FImage>

@Reference(type=Article,
           author={"Suzuki, S.","Abe, K."},
           title="Topological Structural Analysis of Digitized Binary Image by Border Following",
           year="1985",
           journal="Computer Vision, Graphics and Image Processing",
           pages={"32","46"},
           month="January",
           number="1",
           volume="30")
public class SuzukiContourProcessor
extends Object
implements ImageAnalyser<FImage>

Given a binary image (1-connected and 0-connected regions) detect contours and provide both the contours and a hierarchy of contour membership.

Author:

Sina Samangooei (ss@ecs.soton.ac.uk)

Field Summary

Fields

Modifier and Type	Field and Description
Contour	root the root border detected

Constructor Summary

Constructors

Constructor and Description
SuzukiContourProcessor()

Method Summary

Modifier and Type	Method and Description
void	analyseImage(FImage image) Analyse an image.
static Contour	findContours(FImage image) Find contours in the given image and return the border
static Contour	findContours(FImage image, SuzukiContourProcessor proc) Detect borders hierarchically in this binary image.
void	setMinRelativeChildProp(double d) Set the threshold at which small children (measured relative to their parent area) are removed.

Methods inherited from class java.lang.Object

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

Field Detail

root

public Contour root

the root border detected

Constructor Detail

SuzukiContourProcessor

public SuzukiContourProcessor()

Method Detail

analyseImage

public void analyseImage(FImage image)

Description copied from interface: ImageAnalyser

Analyse an image.

Specified by:

analyseImage in interface ImageAnalyser<FImage>

Parameters:

image - The image to process in place.

findContours

public static Contour findContours(FImage image)

Find contours in the given image and return the border

Parameters:

image - the image

Returns:

the border

findContours

public static Contour findContours(FImage image,
                                   SuzukiContourProcessor proc)

Detect borders hierarchically in this binary image. Note the image is changed while borders are found.

Parameters:

image - the image

proc - the contour detector

Returns:

the detected border

setMinRelativeChildProp

public void setMinRelativeChildProp(double d)

Set the threshold at which small children (measured relative to their parent area) are removed.

Parameters:

d - the threshold