org.barrelorgandiscovery.recognition.imageprocessing

Class WarpGrid

java.lang.Object

org.barrelorgandiscovery.recognition.imageprocessing.WarpGrid

public class WarpGrid
extends java.lang.Object

A warp grid. From "A simplified approach to Image Processing" by Randy Crane

Field Summary

Fields

Modifier and Type	Field and Description
int	cols
int	rows
float[]	xGrid
float[]	yGrid

Constructor Summary

Constructors

Constructor and Description
WarpGrid(int rows, int cols, int w, int h)

Method Summary

Modifier and Type	Method and Description
void	addCol(int before) Add a new column to the grid.
void	addRow(int before) Add a new row to the grid.
protected void	interpolateSpline(float[] xKnots, float[] yKnots, int offset, int length, float[] splineY, int splineOffset, int splineLength)
protected void	interpolateSpline2(float[] xKnots, float[] yKnots, int offset, float[] splineY, int splineOffset, int splineLength)
void	lerp(float t, WarpGrid destination, WarpGrid intermediate)
void	removeCol(int r) Remove a column from the grid.
void	removeRow(int r) Remove a row from the grid.
void	setPos(int row, int col, float x, float y) set position of a corner
void	warp(int[] inPixels, int cols, int rows, WarpGrid sourceGrid, WarpGrid destGrid, int[] outPixels)

Methods inherited from class java.lang.Object

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

Field Detail

xGrid

public float[] xGrid

yGrid

public float[] yGrid

rows

public int rows

cols

public int cols

Constructor Detail

WarpGrid

public WarpGrid(int rows,
                int cols,
                int w,
                int h)

Method Detail

setPos

public void setPos(int row,
                   int col,
                   float x,
                   float y)

set position of a corner

Parameters:

row -

col -

x -

y -

addRow

public void addRow(int before)

Add a new row to the grid. "before" must be in the range 1..rows-1. i.e. you can only add rows inside the grid.

addCol

public void addCol(int before)

Add a new column to the grid. "before" must be in the range 1..cols-1. i.e. you can only add columns inside the grid.

removeRow

public void removeRow(int r)

Remove a row from the grid.

removeCol

public void removeCol(int r)

Remove a column from the grid.

lerp

public void lerp(float t,
                 WarpGrid destination,
                 WarpGrid intermediate)

warp

public void warp(int[] inPixels,
                 int cols,
                 int rows,
                 WarpGrid sourceGrid,
                 WarpGrid destGrid,
                 int[] outPixels)

interpolateSpline

protected void interpolateSpline(float[] xKnots,
                                 float[] yKnots,
                                 int offset,
                                 int length,
                                 float[] splineY,
                                 int splineOffset,
                                 int splineLength)

interpolateSpline2

protected void interpolateSpline2(float[] xKnots,
                                  float[] yKnots,
                                  int offset,
                                  float[] splineY,
                                  int splineOffset,
                                  int splineLength)