trex.Algo
Class StegoAlgoLSB.LSBEncryptFilter

java.lang.Object
  |
  +--java.awt.image.ImageFilter
        |
        +--java.awt.image.RGBImageFilter
              |
              +--trex.Filter.TRexFilterRGB
                    |
                    +--trex.Algo.StegoAlgoLSB.LSBEncryptFilter

All Implemented Interfaces:

Cloneable, ImageConsumer

Enclosing class:

StegoAlgoLSB

protected class StegoAlgoLSB.LSBEncryptFilter

extends TRexFilterRGB

LSBEncryptFilter is the encrypt filter for the LSB algorithm.

Field Summary

Fields inherited from class trex.Filter.TRexFilterRGB

data, h, w

Fields inherited from class java.awt.image.RGBImageFilter

canFilterIndexColorModel, newmodel, origmodel

Fields inherited from class java.awt.image.ImageFilter

consumer

Fields inherited from interface java.awt.image.ImageConsumer

COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT

Constructor Summary

StegoAlgoLSB.LSBEncryptFilter(String data, int w, int h)
Constructs a new filter.

Method Summary

int	filterRGB(int x, int y, int rgb) hides 3 bits of data in exactely one pixel and returns the new pixel

Methods inherited from class trex.Filter.TRexFilterRGB

getData

Methods inherited from class java.awt.image.RGBImageFilter

filterIndexColorModel, filterRGBPixels, setColorModel, setPixels, setPixels, substituteColorModel

Methods inherited from class java.awt.image.ImageFilter

clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setDimensions, setHints, setProperties

Methods inherited from class java.lang.Object

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

Constructor Detail

StegoAlgoLSB.LSBEncryptFilter

public StegoAlgoLSB.LSBEncryptFilter(String data,
                                     int w,
                                     int h)

Constructs a new filter.

Parameters:

data - Data to hide in the picture

w - picture's width

h - picture's height

Method Detail

filterRGB

public int filterRGB(int x,
                     int y,
                     int rgb)

hides 3 bits of data in exactely one pixel and returns the new pixel

Specified by:

filterRGB in class RGBImageFilter

Parameters:

x - horizontal coordinate

y - vertical coordinate

rgb - input pixel color

Returns:

New rgb value.