coders
Class DifferenceExpansion

java.lang.Object
  coders.DifferenceExpansion

public class DifferenceExpansion
extends java.lang.Object

Author:

Jonathan L Dautrich Jr.

Field Summary

static BitSequence

END_OF_MAP

Constructor Summary

DifferenceExpansion()

Method Summary

static java.util.ArrayList<DEPixelPair>	getPairs(Bitmap bitmap, boolean horizontal) Returns a complete ordered list of pixel pairs in an order specified by the any parameters, for the current layer.
static java.util.ArrayList<DEPixelPair>	getRandomPairs(Bitmap bitmap, long seed) Returns a complete list of pixel pairs where the pixels in each pair are selected pseudorandomly from the bitmap using the specified seed.

Methods inherited from class java.lang.Object

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

Field Detail

END_OF_MAP

public static final BitSequence END_OF_MAP

Constructor Detail

DifferenceExpansion

public DifferenceExpansion()

Method Detail

getPairs

public static java.util.ArrayList<DEPixelPair> getPairs(Bitmap bitmap,
                                                        boolean horizontal)

Returns a complete ordered list of pixel pairs in an order specified by the any parameters, for the current layer. If horizontal is true, just pair each pixel with its next neighbor in a top-down, left-to-right fashion. If there is an odd number of pixels, ignore the last one. If horizontal is false, pair each pixel with the one in the row below it, still proceeding in a top-down, left-to-right fashion. If there is an odd number of rows, ignore the bottom one. Include all columns.

getRandomPairs

public static java.util.ArrayList<DEPixelPair> getRandomPairs(Bitmap bitmap,
                                                              long seed)

Returns a complete list of pixel pairs where the pixels in each pair are selected pseudorandomly from the bitmap using the specified seed.

Parameters:

bitmap -

seed -

Returns: