Package technology.tabula

Class ProjectionProfile

java.lang.Object

technology.tabula.ProjectionProfile

public class ProjectionProfile
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DECIMAL_PLACES

Constructor Summary

Constructors

Constructor	Description
ProjectionProfile(Page area, List<? extends Rectangle> elements, float horizontalKernelSize, float verticalKernelSize)

Method Summary

Modifier and Type	Method	Description
static float[]	filter(float[] data, float alpha)	Simple Low pass filter
float[]	findHorizontalSeparators(float minRowHeight)
float[]	findVerticalSeparators(float minColumnWidth)
static float[]	getAutocorrelation(float[] projection)
static float[]	getFirstDeriv(float[] projection)
float[]	getHorizontalProjection()
float[]	getVerticalProjection()
static float[]	smooth(float[] data, int kernelSize)

Methods inherited from class java.lang.Object

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

Field Details

DECIMAL_PLACES

public static final int DECIMAL_PLACES

See Also:

• Constant Field Values

Constructor Details

ProjectionProfile

public ProjectionProfile(Page area,
 List<? extends Rectangle> elements,
 float horizontalKernelSize,
 float verticalKernelSize)

Method Details

getVerticalProjection

public float[] getVerticalProjection()

getHorizontalProjection

public float[] getHorizontalProjection()

findVerticalSeparators

public float[] findVerticalSeparators(float minColumnWidth)

findHorizontalSeparators

public float[] findHorizontalSeparators(float minRowHeight)

smooth

public static float[] smooth(float[] data,
 int kernelSize)

filter

public static float[] filter(float[] data,
 float alpha)

Simple Low pass filter

getAutocorrelation

public static float[] getAutocorrelation(float[] projection)

getFirstDeriv

public static float[] getFirstDeriv(float[] projection)