com.explodingbacon.bcnlib.vision

Class Contour

java.lang.Object

com.explodingbacon.bcnlib.vision.Image

com.explodingbacon.bcnlib.vision.Contour

public class Contour
extends Image

A wrapper class for OpenCV's MatOfPoint and MatOfPoint2f objects.

Field Summary

Fields

Modifier and Type	Field and Description
org.opencv.core.Point	coords
org.opencv.core.MatOfPoint	mop
org.opencv.core.MatOfPoint2f	mop2f
protected Rectangle	rect
org.opencv.core.RotatedRect	rotatedRect

Fields inherited from class com.explodingbacon.bcnlib.vision.Image

m

Constructor Summary

Constructors

Constructor and Description
Contour(org.opencv.core.MatOfPoint mop) Creates a Contour from a MatOfPoint.
Contour(org.opencv.core.MatOfPoint2f mop2f) Creates a Contour from a MatOfPoint2f.

Method Summary

Modifier and Type	Method and Description
Contour	approxEdges(double precision) Approximates the edges of this Contour.
double	getArea() Gets the area of this Image.
Rectangle	getBoundingBox() Gets a Rectangle that surrounds this Image.
double	getHeight() Gets the height of this Image.
org.opencv.core.MatOfPoint	getMatOfPoint() Gets the MatOfPoint.
org.opencv.core.MatOfPoint2f	getMatOfPoint2f() Gets the MatOfPoint2f.
double	getMiddleX() Gets the X coordinate of the middle of this Contour.
double	getMiddleY() Gets the Y coordinate of the middle of this Contour.
double	getWidth() Gets the width of this Image.
double	getX() Gets the X coordinate of this Contour.
double	getY() Gets the Y coordinate of this Contour.
boolean	isConvex() Checks if this Contour is convex.
static java.util.List<org.opencv.core.MatOfPoint>	toMatOfPoint(java.util.List<Contour> cons) Converts a List of Contours to a List of MatOfPoint.

Methods inherited from class com.explodingbacon.bcnlib.vision.Image

compareTo, copy, drawArrow, drawCircle, drawContours, drawLine, drawLine, drawLine, drawRectangle, drawRectangle, drawText, fromFile, getContours, getFaces, getMat, inRange, release, resize, saveAs, setMat, toBytes, toHSV

Methods inherited from class java.lang.Object

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

Field Detail

coords

public org.opencv.core.Point coords

mop

public org.opencv.core.MatOfPoint mop

mop2f

public org.opencv.core.MatOfPoint2f mop2f

rect

protected Rectangle rect

rotatedRect

public org.opencv.core.RotatedRect rotatedRect

Constructor Detail

Contour

public Contour(org.opencv.core.MatOfPoint mop)

Creates a Contour from a MatOfPoint.

Parameters:

mop - The MatOfPoint.

Contour

public Contour(org.opencv.core.MatOfPoint2f mop2f)

Creates a Contour from a MatOfPoint2f.

Parameters:

mop2f - The MatOfPoint2f.

Method Detail

getArea

public double getArea()

Gets the area of this Image.

Returns:

The area of this Image.

getBoundingBox

public Rectangle getBoundingBox()

Gets a Rectangle that surrounds this Image.

Returns:

A Rectangle that surrounds this Image.

getX

public double getX()

Gets the X coordinate of this Contour.

Returns:

The X coordinate of this Contour.

getY

public double getY()

Gets the Y coordinate of this Contour.

Returns:

The Y coordinate of this Contour.

getWidth

public double getWidth()

Description copied from class: Image

Gets the width of this Image.

Overrides:

getWidth in class Image

Returns:

The width of this Image.

getHeight

public double getHeight()

Description copied from class: Image

Gets the height of this Image.

Overrides:

getHeight in class Image

Returns:

The height of this Image.

getMiddleX

public double getMiddleX()

Gets the X coordinate of the middle of this Contour.

Returns:

The X coordinate of the middle of this Contour.

getMiddleY

public double getMiddleY()

Gets the Y coordinate of the middle of this Contour.

Returns:

The Y coordinate of the middle of this Contour.

isConvex

public boolean isConvex()

Checks if this Contour is convex.

Returns:

If this Contour is convex.

getMatOfPoint

public org.opencv.core.MatOfPoint getMatOfPoint()

Gets the MatOfPoint.

Returns:

The MatOfPoint.

getMatOfPoint2f

public org.opencv.core.MatOfPoint2f getMatOfPoint2f()

Gets the MatOfPoint2f.

Returns:

The MatOfPoint2f.

approxEdges

public Contour approxEdges(double precision)

Approximates the edges of this Contour.

Parameters:

precision - How precise the approximated edges should be. 0.01 is a good number to start with.

Returns:

An approximated version of this Contour.

toMatOfPoint

public static java.util.List<org.opencv.core.MatOfPoint> toMatOfPoint(java.util.List<Contour> cons)

Converts a List of Contours to a List of MatOfPoint.

Parameters:

cons - The Contours to convert.

Returns:

A List of MatOfPoint.