net.sf.ij_plugins.quilting

Class SynthAide

java.lang.Object

net.sf.ij_plugins.quilting.SynthAide

public class SynthAide
extends java.lang.Object

This class has some helper methods for texture synthesis algorithms.

Constructor Summary

Constructors

Constructor and Description
SynthAide()

Method Summary

Methods

Modifier and Type	Method and Description
static void	blend(Patch fromPatch, Patch toPatch, int x, int y, double frompart) This blends the pixel values at (x,y) from the two patches and puts the result in toPatch.
static void	copy(View from, View to, int firstx, int firsty, int width, int height) This copies a rectangular region of pixels from one view to another.
static double[][]	gaussian(int length) This returns a square 2D normalized Gaussian filter of the given size.
static java.util.LinkedList<TwoDLoc>	lessThanEqual(double[][] vals, double threshold) This searches the given array for all non-negative values less than or equal to a given threshold and returns the list of array indicies of matches.
static int	ssd(View view1, View view2, int x, int y) This computes the sum (across channels) of squared differences between the pixel values at the given coordinate in the given views.

Methods inherited from class java.lang.Object

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

Constructor Detail

SynthAide

public SynthAide()

Method Detail

copy

public static void copy(View from,
        View to,
        int firstx,
        int firsty,
        int width,
        int height)

This copies a rectangular region of pixels from one view to another. The region copied will start at (firstx,firsty) and extend to include (firstx+width-1, firsty+height-1). Coordinates are view coordinates.

gaussian

public static double[][] gaussian(int length)

This returns a square 2D normalized Gaussian filter of the given size.

lessThanEqual

public static java.util.LinkedList<TwoDLoc> lessThanEqual(double[][] vals,
                                          double threshold)

This searches the given array for all non-negative values less than or equal to a given threshold and returns the list of array indicies of matches. Negative values are assumed to be invalid and thus are ignored.

Returns:

This returns a list of net.sf.ij_plugins.quilting.TwoDLoc objects.

blend

public static void blend(Patch fromPatch,
         Patch toPatch,
         int x,
         int y,
         double frompart)

This blends the pixel values at (x,y) from the two patches and puts the result in toPatch.

Parameters:

frompart - This gives the ration of the fromPatch value to use (0 <= frompart <= 1). The rest of the value comes from toPatch.

ssd

public static int ssd(View view1,
      View view2,
      int x,
      int y)

This computes the sum (across channels) of squared differences between the pixel values at the given coordinate in the given views.