com.tplan.robot.imagecomparison.histogram

Class ImageHistogram

java.lang.Object

com.tplan.robot.imagecomparison.histogram.ImageHistogram

All Implemented Interfaces:

Measurable

public class ImageHistogram
extends Object
implements Measurable

Image color histogram.

T-Plan Robot Enterprise, (C) 2009-2025 T-Plan Limited. All rights reserved.

Constructor Summary

Constructors

Constructor and Description
ImageHistogram()

Method Summary

Modifier and Type	Method and Description
long	getLength()
void	getMajorColors(int[] c) Get major colors.
int	getMinAlpha()
void	getMinorColors(int[] c) Get minor colors.
int	getNumberOfComparablePixels()
Map<Integer,int[]>	getPointers()
float	getProgress() Get the task progress where 0 means "0% done" and 1 means "100% done".
int[]	getSortedListOfColors(int maxColors) Return an array of colors sorted descending based on pixel count.
List<Integer>	getSortedListOfMajorColors(int maxColors) Return an array of colors sorted ascending based on pixel count.
ImageHistogram	load(Image img, Rectangle rect)
ImageHistogram	load(int[] pixels)
ImageHistogram	load(int[] pixels, Rectangle histRect, Rectangle sourceRect)
void	setMinAlpha(int minAlpha)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageHistogram

public ImageHistogram()

Method Detail

toString

public String toString()

Overrides:

toString in class Object

getPointers

public Map<Integer,int[]> getPointers()

getLength

public long getLength()

load

public ImageHistogram load(Image img,
                           Rectangle rect)

load

public ImageHistogram load(int[] pixels)

load

public ImageHistogram load(int[] pixels,
                           Rectangle histRect,
                           Rectangle sourceRect)

getSortedListOfMajorColors

public List<Integer> getSortedListOfMajorColors(int maxColors)

Return an array of colors sorted ascending based on pixel count.

Parameters:

maxColors - maximum length of the array.

Returns:

array of colors sorted ascending based on pixel count.

getSortedListOfColors

public int[] getSortedListOfColors(int maxColors)

Return an array of colors sorted descending based on pixel count.

Parameters:

maxColors - maximum length of the array.

Returns:

array of colors sorted descending based on pixel count.

getProgress

public float getProgress()

Description copied from interface: Measurable

Get the task progress where 0 means "0% done" and 1 means "100% done".

Specified by:

getProgress in interface Measurable

Returns:

a relative number between 0 and 1 indicating how much has been completed.

getNumberOfComparablePixels

public int getNumberOfComparablePixels()

getMinAlpha

public int getMinAlpha()

Returns:

the minAlpha

setMinAlpha

public void setMinAlpha(int minAlpha)

Parameters:

minAlpha - the minAlpha to set

getMinorColors

public void getMinorColors(int[] c)

Get minor colors.

Parameters:

c - array to store the minor (low occurrence) colors to.

Since:

7.2.2

getMajorColors

public void getMajorColors(int[] c)

Get major colors.

Parameters:

c - array to store the major (high occurrence) colors to.

Since:

7.2.2