Facemorph.haar
Class SAT

java.lang.Object
  Facemorph.haar.SAT

public class SAT
extends java.lang.Object

Summed area table

Constructor Summary

SAT(BufferedImg src)
Creates a summed area table from the top left corner

SAT(BufferedImg src, boolean squared)
Creates a summed area table from the top left corner

SAT(BufferedImg src, boolean squared, boolean tilted)
Creates a summed area table from the top left corner

Method Summary

int	getMaxX() Returns the maximum X value of the summed area table representation.
int	getMaxY() Returns the maximum Y value of the summed area table representation.
double	getSumOfTiltedVals(int x, int y, int w, int h) Calculate the sum of values between pixel (startX, startY) and (endX, endY)
double	getSumOfVals(int startX, int startY, int endX, int endY) Calculate the sum of values between pixel (startX, startY) and (endX, endY)
static void	main(java.lang.String[] args) Main method for testing
static double	sumOfTiltedVals(BufferedImg img, int x, int y, int w, int h) Direct calculation of tilted sums for testing
static double	sumOfVals(BufferedImg img, int x, int y, int w, int h) Direct calculation of sums for testing

Methods inherited from class java.lang.Object

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

Constructor Detail

SAT

public SAT(BufferedImg src)

Creates a summed area table from the top left corner

Parameters:

src - The image to create a summed area table from

SAT

public SAT(BufferedImg src,
           boolean squared)

Creates a summed area table from the top left corner

Parameters:

src - The image to create a summed area table from

squared - should the pixel values be squared prior to building the SAT

SAT

public SAT(BufferedImg src,
           boolean squared,
           boolean tilted)

Creates a summed area table from the top left corner

Parameters:

src - The image to create a summed area table from

squared - should the pixel values be squared prior to building the SAT

tilted - should the SAT be for tilted rectangles

Method Detail

getSumOfVals

public double getSumOfVals(int startX,
                           int startY,
                           int endX,
                           int endY)

Calculate the sum of values between pixel (startX, startY) and (endX, endY)

Parameters:

startX - The x coordinate of the bottom left of the region

startY - The y coordinate of the bottom left of the region

endX - The x coordinate of the top right of the region

endY - The y coordinate of the top right of the region

Returns:

return the sum of values in the rectangle

getSumOfTiltedVals

public double getSumOfTiltedVals(int x,
                                 int y,
                                 int w,
                                 int h)

Calculate the sum of values between pixel (startX, startY) and (endX, endY)

Parameters:

x - The x coordinate of the bottom left of the region

y - The y coordinate of the bottom left of the region

w - The width of the region

h - The height of the region

Returns:

returns the sum of values

sumOfVals

public static double sumOfVals(BufferedImg img,
                               int x,
                               int y,
                               int w,
                               int h)

Direct calculation of sums for testing

Parameters:

img - the image to sum the values from

x - the x-coord of the rectangle

y - the y-coord of the rectangle

w - the width of the rectangle

h - the height of the rectangle

Returns:

return the sum of values

sumOfTiltedVals

public static double sumOfTiltedVals(BufferedImg img,
                                     int x,
                                     int y,
                                     int w,
                                     int h)

Direct calculation of tilted sums for testing

Parameters:

img - the image to sum the values from

x - the x-coord of the rectangle

y - the y-coord of the rectangle

w - the width of the rectangle

h - the height of the rectangle

Returns:

return the sum of values

getMaxX

public int getMaxX()

Returns the maximum X value of the summed area table representation.

Returns:

the maximum X value of the summed area table representation.

getMaxY

public int getMaxY()

Returns the maximum Y value of the summed area table representation.

Returns:

the maximum Y value of the summed area table representation.

main

public static void main(java.lang.String[] args)

Main method for testing

Parameters:

args - the program args