cn.apiclub.captcha.filter.image

类 WarpGrid

java.lang.Object

cn.apiclub.captcha.filter.image.WarpGrid

public class WarpGrid
extends Object

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

字段概要

字段

限定符和类型	字段和说明
int	cols
int	rows
float[]	xGrid
float[]	yGrid

构造器概要

构造器

构造器和说明
WarpGrid(int rows, int cols, int w, int h)

方法概要

方法

限定符和类型	方法和说明
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	warp(int[] inPixels, int cols, int rows, WarpGrid sourceGrid, WarpGrid destGrid, int[] outPixels)

从类继承的方法 java.lang.Object

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

字段详细资料

xGrid

public float[] xGrid

yGrid

public float[] yGrid

rows

public int rows

cols

public int cols

构造器详细资料

WarpGrid

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

方法详细资料

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)