Package science.aist.imaging.core.imageprocessing.houghspace

Class HoughSpaceLines

java.lang.Object

science.aist.imaging.core.imageprocessing.houghspace.HoughSpaceLines

public class HoughSpaceLines
extends Object

This class is used as a result for the houghspace

Since:

1.0

Author:

Andreas Pointner, Gerald Zwettler

Constructor Summary

Constructors

Constructor	Description
HoughSpaceLines(int width, int height, double maxRotation, double minRotation, double rotationSteps)

Method Summary

Modifier and Type	Method	Description
double[]	getBestXYradInSector(int xMin, int xMax, int yMin, int yMax)	get the best value in a specific sector
double[]	getBestXYradInSectorForRotation(int xMin, int xMax, int yMin, int yMax, double rotationMin, double rotationMax)	get the best value in a specific sector in a specific direction
double	getHoughSpaceValue(int x, int y, int rotationIdx)	get a value from the hough space
int	getNumOfRotations()
double[]	getXBestXYradInSector(int best, int xMin, int xMax, int yMin, int yMax)	get the x best value in a specific sector
void	setHoughSpaceValue(int x, int y, int rotationIdx, double value)	set a value into the hough space
<T> ImageWrapper<T>	toImage(int expoScale, @NonNull ImageFactory<T> provider)	extracts the best value for each point and adds it to the java image
<T> ImageWrapper<T>	toImage(@NonNull ImageFactory<T> provider)	extracts the best value for each point and adds it to the java image

Methods inherited from class java.lang.Object

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

Constructor Detail

HoughSpaceLines

public HoughSpaceLines(int width,
                       int height,
                       double maxRotation,
                       double minRotation,
                       double rotationSteps)

Parameters:

width - width of the source image

height - height of the source image

maxRotation - end getRotation of the lines

minRotation - start getRotation of the lines

rotationSteps - getRotation steps in degrees

Method Detail

setHoughSpaceValue

public void setHoughSpaceValue(int x,
                               int y,
                               int rotationIdx,
                               double value)

set a value into the hough space

Parameters:

x - x-coordinate

y - y-coordinate

rotationIdx - getRotation index

value - value

getHoughSpaceValue

public double getHoughSpaceValue(int x,
                                 int y,
                                 int rotationIdx)

get a value from the hough space

Parameters:

x - x-coordinate

y - y-coordinate

rotationIdx - getRotation index

Returns:

return value

getBestXYradInSector

public double[] getBestXYradInSector(int xMin,
                                     int xMax,
                                     int yMin,
                                     int yMax)

get the best value in a specific sector

Parameters:

xMin - start search x-coordinate

xMax - end search x-coordinate

yMin - start search y-coordinate

yMax - end search y-coordinate

Returns:

returns an array with [0] = x; [1] = y; [2] = getRotation

getXBestXYradInSector

public double[] getXBestXYradInSector(int best,
                                      int xMin,
                                      int xMax,
                                      int yMin,
                                      int yMax)

get the x best value in a specific sector

Parameters:

best - which value should be found. e.g. 1 means best value. 2 means second best value. and so on

xMin - start search x-coordinate

xMax - end search x-coordinate

yMin - start search y-coordinate

yMax - end search y-coordinate

Returns:

returns an array with [0] = x; [1] = y; [2] = getRotation

getBestXYradInSectorForRotation

public double[] getBestXYradInSectorForRotation(int xMin,
                                                int xMax,
                                                int yMin,
                                                int yMax,
                                                double rotationMin,
                                                double rotationMax)

get the best value in a specific sector in a specific direction

Parameters:

xMin - start search x-coordinate

xMax - end search x-coordinate

yMin - start search y-coordinate

yMax - end search y-coordinate

rotationMin - getRotation in degrees where to start

rotationMax - getRotation in degrees where to end

Returns:

returns an array with [0] = x; [1] = y; [2] = getRotation

getNumOfRotations

public int getNumOfRotations()

Returns:

number of getRotation (maxRotation - minRotation) / rotationStep + 0.5

toImage

public <T> ImageWrapper<T> toImage(int expoScale,
                                   @NonNull
                                   @NonNull ImageFactory<T> provider)

extracts the best value for each point and adds it to the java image

Type Parameters:

T - The result type of the image.

Parameters:

expoScale - the value how high the exponent should be for scaling

provider - the provider to create the resulting image

Returns:

a java image representation of the hough space

toImage

public <T> ImageWrapper<T> toImage(@NonNull
                                   @NonNull ImageFactory<T> provider)

extracts the best value for each point and adds it to the java image

Type Parameters:

T - The type of the resulting image

Parameters:

provider - The image provider used to create the result image.

Returns:

a java image representation of the hough space